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  1. Home
  2. Discontinued Car Audio & Electronics
  3. Discontinued Car Amplifiers
  4. Discontinued Class-D Amplifiers

Discontinued Class-D Amplifiers

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Number of Channels
Each channel on an amplifier will power one speaker using a positive and negative cable. There are various types of amplifiers, each designed to power a certain number of speakers. Monoblock amplifiers, also known as single channel, are designed to power one or more subwoofers. These amplifiers often have very high power ratings. On the other hand, multi-channel amplifiers power multiple speakers, usually at lower power ratings. 2-Channel and 4-Channel amplifiers can power car speakers or low powered subwoofers. Occasionally you might see a 5 or 6-channel amplifier that can power speakers and subwoofers at the same time. The most common setup is a monoblock amp to run subwoofers and a 4-channel amp to run door speakers. Check out our Knowledge Base for more information.
Amplifier Key Features
Amplifiers can offer a diverse array of features. If you select more than one feature, then you will view amplifiers that have ALL features selected. These include speaker-level inputs that facilitate seamless integration with factory audio systems, Bluetooth connectivity suitable for ATV/UTV or Classic vehicle setups, built-in DSPs that provide enhanced control over your audio signal, and a host of other functionalities to explore.
Amplifier Class

An amplifier increases the power of the signal being fed to it by taking energy from its power supply and matching the signal but increasing its amplitude. Amplifiers use many different methods for converting these electrical signals and have been categorized into classes.

Class A/B: Greater than 50% of the input signal is amplified while the other percentage is “off”. These amplifiers have a small amount of current flowing through the output transistors all the time which almost eliminates crossover distortion. Class A/B has great sound quality but is not as efficient as class D. These amps are most commonly used to drive speakers.

Class D: Also known as switching amplifiers, class D amps have output transistors that are completely turned “on” or “off”. This means that when the transistors are on, there is almost no voltage across them but when they are off there is significant voltage but no current flowing through it which makes these amplifiers very efficient at the cost of sound quality. These amps are most commonly used to drive subwoofers.

Other Classes: You may see classes such as GH, bD, X, FD, etc. by some manufactures. These amplifiers tend to be either class A/B, D or a hybrid of the two but with improvements to their designs that can make them more efficient or offer better sound quality.
Total RMS Power Output
Total RMS power is measured by multiplying RMS power per channel by the number of channels, and is calculated at the lowest level of operating impedance.

RMS power is the amount of continuous power, measured in watts, that an amplifier produces is called RMS power. The higher the RMS figure, the louder and cleaner your music sounds.

The RMS output figure is much more accurate than the peak rating when comparing products.
Total Peak Power Output
The total peak power output is measured as the wattage per channel multiplied by the number of channels, and is calculated at the lowest level of operating impedance.

It is measured during a brief musical burst, such as a sudden drum accent. Some manufacturers display peak power ratings on the face of their products to increase the appeal.

The RMS power rating is more accurate, and we recommend using it for product comparison.
Series
Many brands group their products into series or lines of products to help customers know the level of quality (good, better, best for example). You can filter by series and the brand using our guided browsing.
Brutus Series (70)
Zeus Series (56)
X Series (39)
V Series (30)
Prime Series (28)
CX Series (27)
N Series (26)
XDM Series (26)
SALT Series (24)
SFB Series (22)
HD Series (21)
RD Series (21)
JAD Series (20)
Kappa Series (19)
KX Series (19)
Phantom Series (18)
Reference Series (17)
JD Series (16)
MD Series (16)
S Series (16)
XD-v2 Series (16)
ONYX Series (15)
Picasso-Nano Series (14)
V Power Series (14)
VXi Series (14)
Brutus X 14 Series (13)
Marine V Series (13)
N-Series (13)
Razor Series (13)
Slash v3 Series (13)
GM Digital Series (12)
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Apocalypse Series (11)
BAMF Series (11)
HCP Series (11)
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Bass Series (10)
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iON Series (10)
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PowerZone 2 Series (7)
R-Series (7)
Reaper Series (7)
Torque Series (7)
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Big Bang Series (6)
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DPower Series (6)
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Minimum Impedance Unbridged
The lowest impedance the amplifier will handle when it is not bridged.
Minimum Impedance Bridged
The lowest impedance the amplifier will handle when it is bridged.
Remote bass/level controller
If the amp comes with a bass/gain remote you will be able to control the level of your bass from your dashboard. Typically bass remotes also include a 16-20 ft. wire for installation.
Sonic Certified Amplifier
Sonic Certified amplifiers have been tested by the experts at Sonic Electronix to meet or exceed the wattage ratings provided by the manufacturer. If this is marked as Yes, then you can trust the wattage ratings. If marked as No, then we have tested the amplifier and it did not meet the advertised wattage ratings. If marked as Not Tested, then the Sonic Electronix experts have not yet been able to test the amp.
Preamp Outputs
Many amplifiers are equipped with RCA preamp outputs which pass the original music signal from the source to additional amplifiers. This is known as daisy chaining because the source connects to the first amp, and the first amp connects to the second amp, etc. The advantage to daisy chaining is you only need one 2-channel RCA cable to transfer the signal from the head-unit to the amplifier, and then one additional cable for each amp being daisy chained.
Built-in Crossover

A crossover is a type of filtering system that permits only certain frequencies to play. A Low-Pass (LP) crossover allows only frequencies below its setting to get through which is good in the case of some subwoofers. A High-Pass(HP) filter allows frequencies above its setting to pass through, this is normally used on speakers.

When a crossover is set to FULL it means no filtering is added and the full frequency spectrum is allowed through the amplifier. Filtering is important because feeding a speaker frequencies it cannot reproduce effectively creates distortion.

Amp Bluetooth Connectivity
This feature will tell you if the amplifier has the capability to connect to a Bluetooth device.
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Condition

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You are currently viewing discontinued products.

Alpine PDX-4.100 Open Box

4-Channel Power Density Digital Amplifier (PDX4.100)

PDX-4.100 big DISCONTINUED
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Alpine PDX-4.100 Open Box

4-Channel Power Density Digital Amplifier (PDX4.100)

4-Channel Power Density Digital Amplifier • 100W x 4 chan. @ 4 Ohm • class D amp design • stackable installation design • MOSFET power supply • quick connect power connectors

4-Channel Power Density Digital Amplifier • 100W x 4 chan. @ 4 Ohm • class D amp design • stackable installation design • MOSFET power supply • quick connect power connectors

MTX Audio TA7801 Thunder 7801 R/B**MISSING BASS REMOTE**

REFURBISHED, MISSING BASS REMOTE Class D Monoblock Super Amplifier Thunder7801

TA7801 big DISCONTINUED
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MTX Audio TA7801 Thunder 7801 R/B**MISSING BASS REMOTE**

REFURBISHED, MISSING BASS REMOTE Class D Monoblock Super Amplifier Thunder7801

Thunder Super Amplifier • 800W RMS x 1 @ 2 • 1200W RMS x 1 @ 1 • Prizm EFX • Xtant Cooling Technology • Wired Remote • Built-In Capacitor Terminals

Thunder Super Amplifier • 800W RMS x 1 @ 2 • 1200W RMS x 1 @ 1 • Prizm EFX • Xtant Cooling Technology • Wired Remote • Built-In Capacitor Terminals

Alpine PDX-4.100 R/B

4-Channel Power Density Digital Amplifier (PDX4.100)

PDX-4.100 big DISCONTINUED
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Alpine PDX-4.100 R/B

4-Channel Power Density Digital Amplifier (PDX4.100)

4-Channel Power Density Digital Amplifier • 100W x 4 chan. @ 4 Ohm • class D amp design • stackable installation design • MOSFET power supply • quick connect power connectors

4-Channel Power Density Digital Amplifier • 100W x 4 chan. @ 4 Ohm • class D amp design • stackable installation design • MOSFET power supply • quick connect power connectors

Focal FPX1.100 (OPEN BOX, LIKE NEW)

Monoblock Class D Premium Amplifier (1 x 420 W RMS @ 4 ohms)

FPX1.100 big DISCONTINUED
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Focal FPX1.100 (OPEN BOX, LIKE NEW)

Monoblock Class D Premium Amplifier (1 x 420 W RMS @ 4 ohms)

• Monoblock Class D Amplifier
• 420W RMS x 1 at 4 ohm
• 700 W RMS x 1 at 2 ohm
• 1000W RMS x 1 at 1 ohm
• Very small size for power output
• Audio Mos-Fets – Optimized efficiency

• Monoblock Class D Amplifier
• 420W RMS x 1 at 4 ohm
• 700 W RMS x 1 at 2 ohm
• 1000W RMS x 1 at 1 ohm
• Very small size for power output
• Audio Mos-Fets – Optimized efficiency

NVX NDA11005 (Open Box, Great)

2200W Peak (1100W RMS) N-Series Class-D 5-Channel Amplifier with Remote Bass Knob

NDA11005 big DISCONTINUED
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NVX NDA11005 (Open Box, Great)

2200W Peak (1100W RMS) N-Series Class-D 5-Channel Amplifier with Remote Bass Knob

• 100 watts x 4 channel + 315 watts x 1 channel @ 4 ohm
• 150 watts x 4 channel + 500 watts x 1 channel @ 2 ohm
• Bridged: 300 watts x 2 channel @ 4 ohm + 500 watts x 1 channel @ 2 ohm
• Total RMS Power: 1100 watts
• Class D 2 ohm Stable 5-Channel-Channel Amplifier

• 100 watts x 4 channel + 315 watts x 1 channel @ 4 ohm
• 150 watts x 4 channel + 500 watts x 1 channel @ 2 ohm
• Bridged: 300 watts x 2 channel @ 4 ohm + 500 watts x 1 channel @ 2 ohm
• Total RMS Power: 1100 watts
• Class D 2 ohm Stable 5-Channel-Channel Amplifier

EXCLUSIVE

JL Audio + Polk Audio Amplified 5-Channel Full Range Car Audio Package

JL Audio 10W3v3-2 10" W3v3 Series Subwoofer + JL Audio C2-650x 6.5" C2 Series Speakers + Polk Audio PA D5000.5 Class-D 5-Channel Amplifier

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JL Audio + Polk Audio Amplified 5-Channel Full Range Car Audio Package

JL Audio 10W3v3-2 10" W3v3 Series Subwoofer + JL Audio C2-650x 6.5" C2 Series Speakers + Polk Audio PA D5000.5 Class-D 5-Channel Amplifier

• 70 watts RMS x 4-Chan. @ 4 ohm (Speakers)
• 400 watts RMS x 1 @ 2 ohm (Subwoofer)
• 0.75" Silk Dome Tweeter
• Injection Molded, Mica-filled Polypropylene Cone
• Top-mount depth: 2.44"
• 4 Ohm Impedance
• Sensitivity: 91.0 dB @ 1 watt / 1 meter
• Injection-molded, mineral-filled polypropylene cone
• Nitrile butadiene rubber surround
•Customization trim ring
• Floating Cone Attach Method
• DMA Optimized Motor
• CEA-2006 Compliant Amplifier
• Wired remote bass level control included
• Selectable crossover modes: FULL / HPF / LPF
• High-Pass Filter
• Adjustable High-Pass & Low-Pass Frequencies

90

• 70 watts RMS x 4-Chan. @ 4 ohm (Speakers)
• 400 watts RMS x 1 @ 2 ohm (Subwoofer)
• 0.75" Silk Dome Tweeter
• Injection Molded, Mica-filled Polypropylene Cone
• Top-mount depth: 2.44"
• 4 Ohm Impedance
• Sensitivity: 91.0 dB @ 1 watt / 1 meter
• Injection-molded, mineral-filled polypropylene cone
• Nitrile butadiene rubber surround
•Customization trim ring
• Floating Cone Attach Method
• DMA Optimized Motor
• CEA-2006 Compliant Amplifier
• Wired remote bass level control included
• Selectable crossover modes: FULL / HPF / LPF
• High-Pass Filter
• Adjustable High-Pass & Low-Pass Frequencies

Hifonics Colossus 6.5K (Factory Refurbished)

Mount Olympus 3200W RMS Ultimate Performance Dual Monoblock Ultra Class D Amplifier

COLOSSUS 6.5K big DISCONTINUED
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Hifonics Colossus 6.5K (Factory Refurbished)

Mount Olympus 3200W RMS Ultimate Performance Dual Monoblock Ultra Class D Amplifier

• 3250W RMS
• 1625W x 2 Chan @ 1 Ohm
• Wired HFR-G1 Remote Bass Level Control
• Variable Bass Boost
• Alloy Finned Heatsink

• 3250W RMS
• 1625W x 2 Chan @ 1 Ohm
• Wired HFR-G1 Remote Bass Level Control
• Variable Bass Boost
• Alloy Finned Heatsink

Image Dynamics SQ1200.1D Damaged Packaging Only (New)

1200W RMS SQ Series Class-D Monoblock 1-Ohm Stable Amplifier with Bass Knob Included

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Image Dynamics SQ1200.1D Damaged Packaging Only (New)

1200W RMS SQ Series Class-D Monoblock 1-Ohm Stable Amplifier with Bass Knob Included

• 400 Watts RMS x 1 @ 4 ohm
• 800 Watts RMS x 1 @ 2 ohm
• 1200 Watts RMS x 1 @ 1 ohm
• Total Peak Power: 2400 Watts
• Variable Bass Boost: 0 to +12 dB bass boost at 45 Hz
• Heavy duty aluminum alloy heat-sink for extreme heat dissipation
• Dimensions: 8-1/2"W x 20"L x 2-1/4"H

• 400 Watts RMS x 1 @ 4 ohm
• 800 Watts RMS x 1 @ 2 ohm
• 1200 Watts RMS x 1 @ 1 ohm
• Total Peak Power: 2400 Watts
• Variable Bass Boost: 0 to +12 dB bass boost at 45 Hz
• Heavy duty aluminum alloy heat-sink for extreme heat dissipation
• Dimensions: 8-1/2"W x 20"L x 2-1/4"H

EXCLUSIVE

Alpine + NVX High Performance Bass Bundle

(2) Alpine SWR-10D2 10" Type-R Subwoofer + NVX XPLD3K True 3000W RMS Class-D Monoblock Amplifier + 100% OFC Amp Wiring Kit

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Alpine + NVX High Performance Bass Bundle

(2) Alpine SWR-10D2 10" Type-R Subwoofer + NVX XPLD3K True 3000W RMS Class-D Monoblock Amplifier + 100% OFC Amp Wiring Kit

• 1900W x 1 @ 2 ohm
• 300 - 1000W RMS
• Dual 2-Ohm Voice Coil
• Kevlar Treated Pulp Cone
• Durable HAMR Santoprene™ Surround
• CEA-2006 Compliant
• Wired Bass Remote Included
• Ultra Efficient Class D Design
• For Car Audio Systems Over 1000 Watts RMS
• Silver-Tinned 100% Virgin Copper
• 2-channel RCA Interconnect Cable

• 1900W x 1 @ 2 ohm
• 300 - 1000W RMS
• Dual 2-Ohm Voice Coil
• Kevlar Treated Pulp Cone
• Durable HAMR Santoprene™ Surround
• CEA-2006 Compliant
• Wired Bass Remote Included
• Ultra Efficient Class D Design
• For Car Audio Systems Over 1000 Watts RMS
• Silver-Tinned 100% Virgin Copper
• 2-channel RCA Interconnect Cable

Audiopipe APK-3500 Complete Amplifier Upgrade Package

APK-3500 3500W Monoblock Class D Car Amplifier + TC6KIT-0B 1/0 Gauge OFC Amplifier Wiring Kit + 2-Channel RCA Audio Interconnect Cable

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Audiopipe APK-3500 Complete Amplifier Upgrade Package

APK-3500 3500W Monoblock Class D Car Amplifier + TC6KIT-0B 1/0 Gauge OFC Amplifier Wiring Kit + 2-Channel RCA Audio Interconnect Cable

• RMS Power: 1040W x 1 @ 4 ohm, 1940W x 1 @ 2 ohm, 3000W x 1 @ 1 ohm
• Variable Low-Pass Filter (10-50 Hz, 24 dB/Octave)
• 1/0 Gauge Power Amplifier Installation Kit
• Premium Power and Ground Wire Provides Optimal Power Transfer
• 2 Channel RCA Audio Interconnect Cable

27

• RMS Power: 1040W x 1 @ 4 ohm, 1940W x 1 @ 2 ohm, 3000W x 1 @ 1 ohm
• Variable Low-Pass Filter (10-50 Hz, 24 dB/Octave)
• 1/0 Gauge Power Amplifier Installation Kit
• Premium Power and Ground Wire Provides Optimal Power Transfer
• 2 Channel RCA Audio Interconnect Cable

Power Acoustik RZ1-3500D

3500W Peak (2100W RMS) Class D RAZOR Series Monoblock Car Amplifier (with Bass Remote)

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Power Acoustik RZ1-3500D

3500W Peak (2100W RMS) Class D RAZOR Series Monoblock Car Amplifier (with Bass Remote)

• 900 watts x 1 channel @ 4 ohm
• 1400 watts x 1 channel @ 2 ohm
• Total RMS Power: 2100 watts
• Class D 2 ohm Stable Monoblock Amplifier

12

• 900 watts x 1 channel @ 4 ohm
• 1400 watts x 1 channel @ 2 ohm
• Total RMS Power: 2100 watts
• Class D 2 ohm Stable Monoblock Amplifier

Audiopipe APK-4500 with Complete Amplifier Wiring Bundle

APK-4500 4500W Monoblock Class D Car Amplifier + TC6KIT-0B OFC Amplifier Wiring Kit + BBIC5 2-Channel RCA Interconnect Cable

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Audiopipe APK-4500 with Complete Amplifier Wiring Bundle

APK-4500 4500W Monoblock Class D Car Amplifier + TC6KIT-0B OFC Amplifier Wiring Kit + BBIC5 2-Channel RCA Interconnect Cable

• RMS Power: 1350W x 1 @ 4 ohm, 2500W x 1 @ 2 ohm, 4300W x 1 @ 1 ohm
• Variable Low-Pass Filter (35-250 Hz, 24 dB/Octave)
• High Purity Copper Trace Circuit Boards
• 1/0 Gauge Power Amplifier Installation Kit
• Ideal for Systems Up to 1500 Watts
• 2 Channel RCA Audio Interconnect Cable

31

• RMS Power: 1350W x 1 @ 4 ohm, 2500W x 1 @ 2 ohm, 4300W x 1 @ 1 ohm
• Variable Low-Pass Filter (35-250 Hz, 24 dB/Octave)
• High Purity Copper Trace Circuit Boards
• 1/0 Gauge Power Amplifier Installation Kit
• Ideal for Systems Up to 1500 Watts
• 2 Channel RCA Audio Interconnect Cable

Hifonics X2200.1D (Factory Refurbished)

2200W BRUTUS X-14 Series Class-D Monoblock 1-Channel Amplifier

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Hifonics X2200.1D (Factory Refurbished)

2200W BRUTUS X-14 Series Class-D Monoblock 1-Channel Amplifier

• RMS Power: 950W x 1 @ 4 ohm, 1600W x 1 @ 2 ohm, 2200W x 1 @ 1 ohm
• Total Peak Power: 2200W
• Variable Low Pass Filter
• 13.39"W x 2.5"H x 9.49"L

• RMS Power: 950W x 1 @ 4 ohm, 1600W x 1 @ 2 ohm, 2200W x 1 @ 1 ohm
• Total Peak Power: 2200W
• Variable Low Pass Filter
• 13.39"W x 2.5"H x 9.49"L

Rockford Fosgate Power T1000-1bd Open Box

(Open Box) 1000W RMS, Compact Class BD Monoblock Car Amplifier

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Rockford Fosgate Power T1000-1bd Open Box

(Open Box) 1000W RMS, Compact Class BD Monoblock Car Amplifier

Compact Class DB Monoblock Car Amplifier • 350W x 1 Chan. @ 4 Ohm • 650W x 1 Chan. @ 2 Ohm • 1000W x 1 Chan. @ 1 Ohm • Discrete Surface Mount Components • MEHSA MOSFET Power Supply • Utilizes TO-247 MOSFETs •

Compact Class DB Monoblock Car Amplifier • 350W x 1 Chan. @ 4 Ohm • 650W x 1 Chan. @ 2 Ohm • 1000W x 1 Chan. @ 1 Ohm • Discrete Surface Mount Components • MEHSA MOSFET Power Supply • Utilizes TO-247 MOSFETs •

JL Audio 250/1 Factory R/B

Factory Refurbished to Like New, Class D Monoblock Amplifier

250/1 big DISCONTINUED
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JL Audio 250/1 Factory R/B

Factory Refurbished to Like New, Class D Monoblock Amplifier

250W RMS Monoblock Amplifier

250W RMS Monoblock Amplifier

Hifonics X1500.1D-RB (Factory Refurbished)

1500W BRUTUS X-14 Series Class-D Monoblock 1-Channel Amplifier

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Hifonics X1500.1D-RB (Factory Refurbished)

1500W BRUTUS X-14 Series Class-D Monoblock 1-Channel Amplifier

• RMS Power: 600W x 1 @ 4 ohm, 1100W x 1 @ 2 ohm, 1500W x 1 @ 1 ohm
• Total Peak Power: 1500W
• CEA-2006 Compliant/Preamp Outputs/LPF
• 12.60"W x 2.5"H x 9.49"L

• RMS Power: 600W x 1 @ 4 ohm, 1100W x 1 @ 2 ohm, 1500W x 1 @ 1 ohm
• Total Peak Power: 1500W
• CEA-2006 Compliant/Preamp Outputs/LPF
• 12.60"W x 2.5"H x 9.49"L

Hifonics BRX1400.1D-RB (Factory Refurbished)

1400W Brutus Series Monoblock Class D Car Amplifier

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Hifonics BRX1400.1D-RB (Factory Refurbished)

1400W Brutus Series Monoblock Class D Car Amplifier

• RMS: 550W x 1 @ 4 ohm, 900W x 1 @ 2 ohm, 1400W x 1 @ 1 ohm
• Total Peak Power: 1400W
• CEA-2006 Compliant
• Ultra-Fi™ Pulse Width Modulated MOSFET Power Supply
• Heavy Duty Aluminum Alloy Heat-Sink
• Dimensions: 10.31"W x 15.92"L x 2.52"H

• RMS: 550W x 1 @ 4 ohm, 900W x 1 @ 2 ohm, 1400W x 1 @ 1 ohm
• Total Peak Power: 1400W
• CEA-2006 Compliant
• Ultra-Fi™ Pulse Width Modulated MOSFET Power Supply
• Heavy Duty Aluminum Alloy Heat-Sink
• Dimensions: 10.31"W x 15.92"L x 2.52"H

Infinity KAPPA FOUR Open Box

(Open Box) 1200W Max, Kappa Series 4-Channel Amplifier (KAPPA-FOUR)

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Infinity KAPPA FOUR Open Box

(Open Box) 1200W Max, Kappa Series 4-Channel Amplifier (KAPPA-FOUR)

Kappa Series 4-Channel Amplifier • 125W x 4 Chan. @ 4 Ohm • 150W x 4 Chan. @ 2 Ohm • 300W x 4 Chan. Max • Tuned Bass EQ • Speaker-level Inputs • Variable High and Low Pass Filters • 4/3/2 Channel Operation

Kappa Series 4-Channel Amplifier • 125W x 4 Chan. @ 4 Ohm • 150W x 4 Chan. @ 2 Ohm • 300W x 4 Chan. Max • Tuned Bass EQ • Speaker-level Inputs • Variable High and Low Pass Filters • 4/3/2 Channel Operation

Alpine MRV-F300 Open Box

300W 4-Channel Class D V-Power Series Compact Car Amplifier

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Alpine MRV-F300 Open Box

300W 4-Channel Class D V-Power Series Compact Car Amplifier

• RMS Power: 50W x 4-Chan. @ 4 ohm, 75W x 4-Chan. @ 2 ohm
• 3-Way System Protection
• 4/3/2/1 Channel Operation
• 8 Gauge Power and Ground Inputs
• Same Power in a 40% Smaller Chassis

• RMS Power: 50W x 4-Chan. @ 4 ohm, 75W x 4-Chan. @ 2 ohm
• 3-Way System Protection
• 4/3/2/1 Channel Operation
• 8 Gauge Power and Ground Inputs
• Same Power in a 40% Smaller Chassis

Alphasonik PMA800DA R/B

Factory Refurbished Class D Monoblock Amplifier

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Alphasonik PMA800DA R/B

Factory Refurbished Class D Monoblock Amplifier

1-Channel Class D Monoblock Power Amplifier • Remote mount digital voltmeter • Remote bass boost control • 1640W x 1 chan. @ 1 Ohm • 1200W x 1 chan. @ 2 Ohm • 800W x 1 chan. @ 4 Ohm

1-Channel Class D Monoblock Power Amplifier • Remote mount digital voltmeter • Remote bass boost control • 1640W x 1 chan. @ 1 Ohm • 1200W x 1 chan. @ 2 Ohm • 800W x 1 chan. @ 4 Ohm

Kenwood KAC-8105D Factory Refurbished

(Factory Refurbished) 1000W Max, Class D Monoblock Performance Series Power Amplifier

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Kenwood KAC-8105D Factory Refurbished

(Factory Refurbished) 1000W Max, Class D Monoblock Performance Series Power Amplifier

GUARANTEED LOWEST PRICE. CONTACT US 24/7 • Class D Monoblock Car Amplifier • 300W x 1 chan. @ 4 ohm • 500W x 1 chan. @ 2 ohm • 1000W x 1 chan. Max • Speaker-level inputs • Gold Plated Preamp RCA outputs • Gold Plated Terminals

GUARANTEED LOWEST PRICE. CONTACT US 24/7 • Class D Monoblock Car Amplifier • 300W x 1 chan. @ 4 ohm • 500W x 1 chan. @ 2 ohm • 1000W x 1 chan. Max • Speaker-level inputs • Gold Plated Preamp RCA outputs • Gold Plated Terminals

Hifonics XX-Goliath

5,000 watt Power Amplifier

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Hifonics XX-Goliath

5,000 watt Power Amplifier

Super-D Monoblock Amplifier • 5000W RMS x 1 @ 1 Ohm • 3200W RMS x 1 @ 2 Ohm • Illuminated Hifonics Logo • Gold Plated RCA Connectors

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Super-D Monoblock Amplifier • 5000W RMS x 1 @ 1 Ohm • 3200W RMS x 1 @ 2 Ohm • Illuminated Hifonics Logo • Gold Plated RCA Connectors

NVX JAD900.5

True 1800 Watt Peak 900W RMS, Full Range Class D 5-Channel Amplifier with Bass Remote

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NVX JAD900.5

True 1800 Watt Peak 900W RMS, Full Range Class D 5-Channel Amplifier with Bass Remote

• 4 ohm: 70 watts x 4 chan. + 220 x 1 chan.
• 2 ohm: 115 watts x 4 chan. + 440 x 1 chan.
• Bridged, 4 ohm: 230 watts x 2 chan. + 440 x 1 chan.
• 5/4/3 Channel Operation

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• 4 ohm: 70 watts x 4 chan. + 220 x 1 chan.
• 2 ohm: 115 watts x 4 chan. + 440 x 1 chan.
• Bridged, 4 ohm: 230 watts x 2 chan. + 440 x 1 chan.
• 5/4/3 Channel Operation

MTX Thunder Elite 1501D (TE1501D) Open Box

(Open Box) 3000W Max, Class D Monoblock Thunder Elite Amplifier

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MTX Thunder Elite 1501D (TE1501D) Open Box

(Open Box) 3000W Max, Class D Monoblock Thunder Elite Amplifier

Thunder Elite Series 1-Channel Class D Car Amplifier • 500W x 1 chan. @ 4 ohm • 1000W x 1 chan. @ 2 ohm • 3000W Max • Semi Unregulated MOSFET • Fan-cooled System • Overload and thermal protection

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Thunder Elite Series 1-Channel Class D Car Amplifier • 500W x 1 chan. @ 4 ohm • 1000W x 1 chan. @ 2 ohm • 3000W Max • Semi Unregulated MOSFET • Fan-cooled System • Overload and thermal protection

Kicker SX1250.1 Factory R/B

SX MonoBlock Class D Amplifier with Digital Sound Processing 04SX1250.1

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Kicker SX1250.1 Factory R/B

SX MonoBlock Class D Amplifier with Digital Sound Processing 04SX1250.1

Factory Refurbished with 90 Days Warranty, 1250 watts RMS @ 1 ohm, Digital Signal Processing, "Sick Bay" monitoring system • Bass Remote Included

Factory Refurbished with 90 Days Warranty, 1250 watts RMS @ 1 ohm, Digital Signal Processing, "Sick Bay" monitoring system • Bass Remote Included

JVC Arsenal KS-AR8002D Open Box

(Open Box) 600W Max, 2-Channel Class D Amplifier - Ultra Compact Design

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JVC Arsenal KS-AR8002D Open Box

(Open Box) 600W Max, 2-Channel Class D Amplifier - Ultra Compact Design

** OFFER GOOD ONLY WHILE SUPPLIES LAST ** • Arsenal Series 2-Channel Class D Car Amplifier • 150W x 2 chan. @ 4 ohm • 170W x 2 chan. @ 2 ohm • 300W x 2 chan. Max • Anti-pop circuitry • Bridgeable operation • Gold-plated terminals

** OFFER GOOD ONLY WHILE SUPPLIES LAST ** • Arsenal Series 2-Channel Class D Car Amplifier • 150W x 2 chan. @ 4 ohm • 170W x 2 chan. @ 2 ohm • 300W x 2 chan. Max • Anti-pop circuitry • Bridgeable operation • Gold-plated terminals

Alpine MRP-M1000 Open Box

Open Box, 1000W RMS, Class D Monoblock Amplifier

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Alpine MRP-M1000 Open Box

Open Box, 1000W RMS, Class D Monoblock Amplifier

V-Power Series Class D Monoblock Car Amplifier • 600W x 1 chan. @ 4 ohm • 1000W x 1 chan. @ 2 ohm • 2000W x 1 chan. Max approx. • MOSFET Power supply • Bass EQ 0-12dB at 50Hz • Continuously adjustable gain control • Thermal management control

V-Power Series Class D Monoblock Car Amplifier • 600W x 1 chan. @ 4 ohm • 1000W x 1 chan. @ 2 ohm • 2000W x 1 chan. Max approx. • MOSFET Power supply • Bass EQ 0-12dB at 50Hz • Continuously adjustable gain control • Thermal management control

MTX Audio JackHammer JH1200 Open Box

(Open Box) 2400W Max, Class D Monoblock Jack Hammer Series Amplifier

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MTX Audio JackHammer JH1200 Open Box

(Open Box) 2400W Max, Class D Monoblock Jack Hammer Series Amplifier

2400 Watt MTX Audio JackHammer Series Class D Monoblock Amplifier • 400 watts x 1 chan. @ 4 ohm • 800 watts x 1 chan. @ 2 ohm • 1200 watts x 1 chan. @ 1 ohm • Tuned Bass EQ • Internal Fan • Low-Pass Filter • CEA-2006 Compliant

2400 Watt MTX Audio JackHammer Series Class D Monoblock Amplifier • 400 watts x 1 chan. @ 4 ohm • 800 watts x 1 chan. @ 2 ohm • 1200 watts x 1 chan. @ 1 ohm • Tuned Bass EQ • Internal Fan • Low-Pass Filter • CEA-2006 Compliant

Crunch GP1500D Open Box

(Open Box: Amp Has Small Dent) 1500W Max, Ground Pounder Class D Monoblock Amplifier GP 1500D

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Crunch GP1500D Open Box

(Open Box: Amp Has Small Dent) 1500W Max, Ground Pounder Class D Monoblock Amplifier GP 1500D

Ground Pounder Series 1-Channel Class D Car Amplifier • 375W x 1 chan. @ 4 ohm • 750W x 1 chan. @ 2 ohm • 1500W x 1 chan. @ 1 ohm Max • PWM MOSFET Power Supply • Silver-plated power connectors • Silver-plated RCA inputs and outputs

Ground Pounder Series 1-Channel Class D Car Amplifier • 375W x 1 chan. @ 4 ohm • 750W x 1 chan. @ 2 ohm • 1500W x 1 chan. @ 1 ohm Max • PWM MOSFET Power Supply • Silver-plated power connectors • Silver-plated RCA inputs and outputs

American Bass VFHLHYBRID-150.4

600W Peak Class D VFL Hybrid Series 4 Channel Car Amplifier

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American Bass VFHLHYBRID-150.4

600W Peak Class D VFL Hybrid Series 4 Channel Car Amplifier

• Rated power output: 150 watts x 4 channel @ 2 ohm
• Class D Stable 4-Channel Amplifier
• Thermal, voltage, speaker short, and DC protection
• Compact or small sized dimensions
• Double side printed circuit board

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• Rated power output: 150 watts x 4 channel @ 2 ohm
• Class D Stable 4-Channel Amplifier
• Thermal, voltage, speaker short, and DC protection
• Compact or small sized dimensions
• Double side printed circuit board

Kicker 08ZX400.1 Open Box

(Open Box) 400W RMS, Class D Monoblock ZX Series Amplifier (ZX400.1, 08ZX4001, ZX4001)

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Kicker 08ZX400.1 Open Box

(Open Box) 400W RMS, Class D Monoblock ZX Series Amplifier (ZX400.1, 08ZX4001, ZX4001)

ZX Series Class D Monoblock Car Amplifier • 200W x 1 chan. @ 4 ohm • 400W x 1 chan. @ 2 ohm • Balanced differential inputs make KICKER ZX Amplifiers compatible with any factory radios

ZX Series Class D Monoblock Car Amplifier • 200W x 1 chan. @ 4 ohm • 400W x 1 chan. @ 2 ohm • Balanced differential inputs make KICKER ZX Amplifiers compatible with any factory radios

Alpine PDX-M12-OPEN BOX

1200W RMS, PDX Series Monoblock Power Density Digital Amplifier

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Alpine PDX-M12-OPEN BOX

1200W RMS, PDX Series Monoblock Power Density Digital Amplifier

• RMS: 1200W x 1 @ 4 ohm, 1200W x 1 @ 2 ohm
• Total RMS Power: 1200W
• CEA-2006 Compliant
• 6-Layer Glass Epoxy PC Board and Compact Size
• Thermal Protection Circuitry
• Dimensions: 7-9/16"D x 10-1/8"W x 2"H

• RMS: 1200W x 1 @ 4 ohm, 1200W x 1 @ 2 ohm
• Total RMS Power: 1200W
• CEA-2006 Compliant
• 6-Layer Glass Epoxy PC Board and Compact Size
• Thermal Protection Circuitry
• Dimensions: 7-9/16"D x 10-1/8"W x 2"H

Soundstream PCA1-650D R/B

650W Picasso Series Class D Monoblock Amplifier

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Soundstream PCA1-650D R/B

650W Picasso Series Class D Monoblock Amplifier

Picasso Monoblock Class D Car Amplifier • 650W x 1 Chan. @ 2 Ohm • 500W x 1 Chan. @ 4 Ohm • High Quality FR-4 Circuit Board • TST(Twin Stack Technology) • Variable Low-Pass Filter • Subsonic Filter • Phase Shift

Picasso Monoblock Class D Car Amplifier • 650W x 1 Chan. @ 2 Ohm • 500W x 1 Chan. @ 4 Ohm • High Quality FR-4 Circuit Board • TST(Twin Stack Technology) • Variable Low-Pass Filter • Subsonic Filter • Phase Shift

MTX F250C00T10A-FPR

Fits Ford F-250/F-350 Super Crew Trucks - Amplified 10" 200W Loaded Thunderform Subwoofer Enclosure - Tan

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MTX F250C00T10A-FPR

Fits Ford F-250/F-350 Super Crew Trucks - Amplified 10" 200W Loaded Thunderform Subwoofer Enclosure - Tan

• 200W Single 10" Sealed Subwoofer Enclosure with Built-In Amplifier
• RMS: 200 W Total
• Preloaded with single 10" FPR-Series Subwoofers
• 10" Sealed Vehicle Specific Enclosure
• Sealed enclosure with factory finish - Tan

• 200W Single 10" Sealed Subwoofer Enclosure with Built-In Amplifier
• RMS: 200 W Total
• Preloaded with single 10" FPR-Series Subwoofers
• 10" Sealed Vehicle Specific Enclosure
• Sealed enclosure with factory finish - Tan

PowerBass ASA 1000.1Dx (Factory Refurbished)

2000W Max, Auto Sound Series Class D Monoblock Amplifier (ASA1000.1Dx)

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PowerBass ASA 1000.1Dx (Factory Refurbished)

2000W Max, Auto Sound Series Class D Monoblock Amplifier (ASA1000.1Dx)

• Auto Sound Monoblock Class D Car Amplifier
• 220 Watts x 1 Chan. @ 4 Ohm
• 500 Watts x 1 Chan. @ 2 Ohm
• 2000 Watts Max
• 3-Way System Protection Circuitry
• LED Power And Protect Indicators
• MOSFET Power Supply

• Auto Sound Monoblock Class D Car Amplifier
• 220 Watts x 1 Chan. @ 4 Ohm
• 500 Watts x 1 Chan. @ 2 Ohm
• 2000 Watts Max
• 3-Way System Protection Circuitry
• LED Power And Protect Indicators
• MOSFET Power Supply

Hifonics ZXX-1200.1D Open Box (Complete)

1200W Peak Zeus Series Class-D Monoblock 1-Ohm Stable Amplifier (ZXX 1200-1D)

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Hifonics ZXX-1200.1D Open Box (Complete)

1200W Peak Zeus Series Class-D Monoblock 1-Ohm Stable Amplifier (ZXX 1200-1D)

• 400 Watts Peak x 1 @ 4 ohm
• 600 Watts Peak x 1 @ 2 ohm
• 1,200 Watts Peak x 1 @ 1 ohm
• Total Peak Power: 1,200 Watts
• Low-Pass and Sub-Sonic Filters
• Variable Bass Boost
• Aluminum Heatsink
• 12.6" W x 10" L x 2.4" H

• 400 Watts Peak x 1 @ 4 ohm
• 600 Watts Peak x 1 @ 2 ohm
• 1,200 Watts Peak x 1 @ 1 ohm
• Total Peak Power: 1,200 Watts
• Low-Pass and Sub-Sonic Filters
• Variable Bass Boost
• Aluminum Heatsink
• 12.6" W x 10" L x 2.4" H

Audiobahn A1502DP R/B

True Digital Series 2-Channel Amplifier (Factory Refurbished)

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Audiobahn A1502DP R/B

True Digital Series 2-Channel Amplifier (Factory Refurbished)

1 ohm stereo stable, 2 ohm bridged • True Digital Circuitry • Dual Cooling Fans • HP/LP Crossovers • Bass Boost • Cobalt Blue Illumination • 150/300/450 watts x 2 ch. (@ 4/2/1 ohm)

1 ohm stereo stable, 2 ohm bridged • True Digital Circuitry • Dual Cooling Fans • HP/LP Crossovers • Bass Boost • Cobalt Blue Illumination • 150/300/450 watts x 2 ch. (@ 4/2/1 ohm)

Soundstream XXX-4000D (XXX4000D) R/B

4000W RMS, Class D Digital Monoblock High Power Amplifier

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Soundstream XXX-4000D (XXX4000D) R/B

4000W RMS, Class D Digital Monoblock High Power Amplifier

XXX-Series Competition Single Channel Class D Car Amplifier • 2200 Watts x 1 Chan. @ 2 Ohm • 3300 Watts x 1 Chan. @ 1 Ohm • 4000 Total RMS • MOSFET PWM power supply • 0-18 dB Bass Boost • Twin Stack Technology

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XXX-Series Competition Single Channel Class D Car Amplifier • 2200 Watts x 1 Chan. @ 2 Ohm • 3300 Watts x 1 Chan. @ 1 Ohm • 4000 Total RMS • MOSFET PWM power supply • 0-18 dB Bass Boost • Twin Stack Technology

Hifonics ZRX1800.1D- OPEN BOX

1800W Max Monoblock Class D Zeus Series Car Amplifier

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Hifonics ZRX1800.1D- OPEN BOX

1800W Max Monoblock Class D Zeus Series Car Amplifier

• Peak: 500W x 1 @ 4 ohm, 900W x 1 @ 2 ohm, 1800W x 1 @ 1 ohm
• Total Peak Power: 1800W
• Class D Circuitry
• Variable Bass Boost: 0 to +10 dB at 50 Hz
• Wired Bass Remote Included
• Dimensions: 14-13/16"L x 10"W x 2-1/3"H

• Peak: 500W x 1 @ 4 ohm, 900W x 1 @ 2 ohm, 1800W x 1 @ 1 ohm
• Total Peak Power: 1800W
• Class D Circuitry
• Variable Bass Boost: 0 to +10 dB at 50 Hz
• Wired Bass Remote Included
• Dimensions: 14-13/16"L x 10"W x 2-1/3"H

Kenwood eXcelon XR-1S Open Box

1500W Max, Reference Fit Class D Monoblock Amplifier

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Kenwood eXcelon XR-1S Open Box

1500W Max, Reference Fit Class D Monoblock Amplifier

Reference Fit Class D Monoblock Car Amplifier • 600 Watts X 1 Chan. @ 4 Ohm • 700 Watts X 1 Chan. @ 2 Ohm • 1600 Watts Max • Dual Sigma Drive Technology • Digital Amplifier • Dual Power Supply

Reference Fit Class D Monoblock Car Amplifier • 600 Watts X 1 Chan. @ 4 Ohm • 700 Watts X 1 Chan. @ 2 Ohm • 1600 Watts Max • Dual Sigma Drive Technology • Digital Amplifier • Dual Power Supply

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    FAQ Frequently asked questions in Discontinued Class-D Amplifiers

    Class D Amplifiers Frequently Asked Questions (FAQ)
    Class D amplifiers are a type of switching amplifier known for their high efficiency and compact size. Unlike traditional Class A, B, and AB amplifiers that use continuous analog voltage to amplify audio signals, Class D amplifiers employ a digital switching technique. This process rapidly switches the output transistors on and off, effectively turning them into binary switches that deliver the audio signal to the speaker. The switching nature of Class D amplifiers drastically reduces power wastage, resulting in higher efficiency and less heat production. As a result, Class D amplifiers are ideal for applications with limited space or power constraints, making them popular in car audio, home theater systems, and portable devices.
    Yes, modern Class D amplifiers have made significant advancements in audio fidelity and can deliver high-quality sound performance. While traditional audiophiles may have associated Class D with lower audio quality due to early models' limitations, today's Class D amplifiers have overcome many of these challenges. With advancements in switching technology, filtering, and feedback mechanisms, Class D amplifiers can now offer exceptional audio reproduction that rivals traditional Class AB amplifiers. Additionally, Class D amplifiers' efficiency and lower heat generation make them well-suited for high-power audio applications where traditional amplifiers would be impractical.
    Yes, Class D amplifiers are versatile and can power various speaker types, including subwoofers, woofers, mid-range, and tweeters. When selecting a Class D amplifier for your speakers, consider the power output (wattage) and impedance rating. Ensure that the amplifier's power rating matches or slightly exceeds your speakers' power handling capabilities to prevent underpowering or overpowering, which can lead to distortion or speaker damage. Additionally, check the amplifier's impedance range to ensure compatibility with your speakers' impedance. Most Class D amplifiers can handle both 4-ohm and 2-ohm loads, making them suitable for a wide range of speaker configurations.
    No, Class D amplifiers are known for their high efficiency, which results in significantly less heat generation compared to other amplifier classes like Class A or Class AB. The digital switching technique used in Class D amplifiers reduces power loss, resulting in a more efficient conversion of electrical energy into audio output. As a result, Class D amplifiers remain relatively cool even at high volume levels, making them suitable for space-constrained installations and applications where heat dissipation is a concern. Their cool operation also extends the lifespan of internal components and reduces the need for large heat sinks or fans.
    Yes, many Class D amplifiers support bridge mode, allowing you to increase the power output when driving a single speaker or subwoofer. In bridge mode, the amplifier combines the power output from two channels into a single channel, effectively doubling the power delivered to the speaker. However, it's essential to follow the manufacturer's guidelines and ensure that your amplifier supports bridging. Additionally, pay attention to the speaker's impedance requirements, as bridging may change the amplifier's impedance capabilities. If you're unsure or need assistance with bridging your Class D amplifier, contact Sonic Electronix's knowledgeable staff, who can help you find the right amplifier and configuration for your audio setup. With their compact size, high efficiency, and versatility, Class D amplifiers offer a compelling solution for various audio applications, delivering powerful and clear sound performance with minimal heat output.
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