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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.
V Series (31)
SALT Series (24)
X Series (24)
XDM Series (24)
Prime Series (23)
RD Series (22)
SFB Series (22)
Brutus Series (21)
JD Series (18)
Zeus Series (18)
N Series (17)
HD Series (16)
JAD Series (14)
CX Series (13)
N-Series (13)
VXi Series (13)
S Series (12)
Machete Series (10)
SAEv4 Series (10)
V Power Series (10)
Venezia Series (10)
Slash v3 Series (9)
Brutus X 14 Series (8)
GM Digital Series (8)
HCP Series (8)
Marine V Series (8)
Power Pack Series (8)
PowerZone Series (8)
Kappa Series (7)
R-Series (7)
GS Series (6)
GTO Series (6)
Mt. Olympus Series (6)
Reference Series (6)
XD-v2 Series (6)
AXL Series (5)
BB Series (5)
DPower Series (5)
GM Series (5)
Mille Power Series (5)
MSA Series (5)
Power One Series (5)
Apocalypse Atom Pro Series (4)
DSP Series (4)
KX Series (4)
ONYX Series (4)
PDX Series (4)
SPL Show Series (4)
XC-Series (4)
XQ Series (4)
Anarchy Series (3)
BAMF Series (3)
BD Series (3)
BX Series (3)
Club Series (3)
Consumer Line Series (3)
Evolution Series (3)
eXcelon Series (3)
iON Series (3)
JX Series (3)
MX Series (3)
Phantom Series (3)
SAE Series (3)
SPL (3)
VFL Series (3)
Alpha Series (2)
APMI Series (2)
DS Series (2)
HMS Series (2)
KXM Series (2)
MOJO Pro Series (2)
MVi Series (2)
Nano Edge Series (2)
Opti Drive Series (2)
Performance Series (2)
Prime R2 Series (2)
Reaper Series (2)
Status Series (2)
Street Edge Series (2)
Stroker Pro Series (2)
Tarantula Series (2)
The Epicenter Series (2)
Thunder Series (2)
WCC Series (2)
Apocalypse Sport Series (1)
Big Bang Series (1)
Black Ice Series (1)
Bomber Series (1)
Brutus BG Series (1)
Champion Series (1)
Chaos EXXtreme Series (1)
COLOSSUS Series (1)
CompVT Series (1)
Crypt Series (1)
D Series (1)
DX Series (1)
Edge Series (1)
Formula Series (1)
Gen-X (1)
Ground Pounder Series (1)
HED Series (1)
HX Series (1)
Kappa Perfect Series (1)
Low Profile Series (1)
MD Series (1)
Mean Machine Series (1)
Overdrive Series (1)
Power Reference (1)
Primo Series (1)
Punch BR Series (1)
Punch Series (1)
Razor Series (1)
Salt Water Series (1)
SIA Series (1)
SixFive Series (1)
Smart Series (1)
Stealth Bomber Series (1)
TS Series (1)
USX Series (1)
WET Series (1)
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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You are currently viewing discontinued products.

Polk Audio PA D1000.1 Open Box Missing (Acceptable, Used)

1200W RMS PA D Series Class-D Monoblock Car Amplifier Open Box Missing (Acceptable, Used)

PA D1000.1 big DISCONTINUED
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Polk Audio PA D1000.1 Open Box Missing (Acceptable, Used)

1200W RMS PA D Series Class-D Monoblock Car Amplifier Open Box Missing (Acceptable, Used)

• 500 Watts RMS x 1 @ 4 ohm
• 800 Watts RMS x 1 @ 2 ohm
• 1200 Watts RMS x 1 @ 1 ohm
• Wired remote bass level control included
• CEA-2006 Compliant
• Signal to Noise Ration: 105 dBA
• Variable Bass Boost: 0 to +12 dB bass boost at 44 Hz
• Dimensions: 6-3/4" W x 12-15/16" L x 1-13/16" H

• 500 Watts RMS x 1 @ 4 ohm
• 800 Watts RMS x 1 @ 2 ohm
• 1200 Watts RMS x 1 @ 1 ohm
• Wired remote bass level control included
• CEA-2006 Compliant
• Signal to Noise Ration: 105 dBA
• Variable Bass Boost: 0 to +12 dB bass boost at 44 Hz
• Dimensions: 6-3/4" W x 12-15/16" L x 1-13/16" H

Hifonics EAGLE HF R/B

Factory Refurbished, 320W RMS Warrior Series 4-Channel Amplifier

EAGLEHF-RB big DISCONTINUED
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Hifonics EAGLE HF R/B

Factory Refurbished, 320W RMS Warrior Series 4-Channel Amplifier

Warrior Series 4-Channel Class A/B Car Amplifier • 320W RMS • 2 Variable High-Pass Filters • 3-Way System Protection Circuitry • VersaCross Open Architecture Crossovers • Symmetrical Signal Amplification

Warrior Series 4-Channel Class A/B Car Amplifier • 320W RMS • 2 Variable High-Pass Filters • 3-Way System Protection Circuitry • VersaCross Open Architecture Crossovers • Symmetrical Signal Amplification

Infinity K2 Amplifier with Clari-fi Technology (Open Box)

700W Peak (240W RMS) High Performance Kappa Series Class-D 2-Channel 2-Ohm Stable Amplifier with Bluetooth and Clari-Fi Technology

K2 big DISCONTINUED
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Infinity K2 Amplifier with Clari-fi Technology (Open Box)

700W Peak (240W RMS) High Performance Kappa Series Class-D 2-Channel 2-Ohm Stable Amplifier with Bluetooth and Clari-Fi Technology

• Item Condition: Like New Open Box
• 100 Watts RMS x 2 @ 4 ohm
• 120 Watts RMS x 2 @ 2 ohm
• 240 Watts RMS x 1 @ 4 ohm Bridged
• Total Peak Power: 700 Watts
• Bluetooth Streaming
• Clari-fi Technology
• Wired control panel
• Speaker-level (high-level) inputs

• Item Condition: Like New Open Box
• 100 Watts RMS x 2 @ 4 ohm
• 120 Watts RMS x 2 @ 2 ohm
• 240 Watts RMS x 1 @ 4 ohm Bridged
• Total Peak Power: 700 Watts
• Bluetooth Streaming
• Clari-fi Technology
• Wired control panel
• Speaker-level (high-level) inputs

MTX Audio THUNDER1000.1 (Open Box Complete)

2000W Peak (1000W RMS) Thunder Series Class-D 1-Ohm Stable Monoblock Amplifier

THUNDER1000.1 big DISCONTINUED
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MTX Audio THUNDER1000.1 (Open Box Complete)

2000W Peak (1000W RMS) Thunder Series Class-D 1-Ohm Stable Monoblock Amplifier

• RMS: 350W x 1 @ 4 ohm, 600W x 1 @ 2 ohm, 1000W x 1 @ 1 ohm
• Total Peak Power: 2000W
• 3-Way Protection Circuitry
• Selectable Bass Boost (0-6-12 dB)
• Class D Circuitry
• Dimensions: 6-5/16"W x 12-1/8"L x 2-1/4"H

• RMS: 350W x 1 @ 4 ohm, 600W x 1 @ 2 ohm, 1000W x 1 @ 1 ohm
• Total Peak Power: 2000W
• 3-Way Protection Circuitry
• Selectable Bass Boost (0-6-12 dB)
• Class D Circuitry
• Dimensions: 6-5/16"W x 12-1/8"L x 2-1/4"H

Polk Audio PA D2000.2 (PAD2000.2) - Open Box, Acceptable but Missing part(s) (Used)

500W RMS PA D Series Class-D 2-channel Car Amplifier

PA D2000.2 big DISCONTINUED
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Polk Audio PA D2000.2 (PAD2000.2) - Open Box, Acceptable but Missing part(s) (Used)

500W RMS PA D Series Class-D 2-channel Car Amplifier

• 125 Watts RMS x 2 @ 4 ohm
• 250 Watts RMS x 2 @ 2 ohm
• 500 Watts RMS x 1 @ 4 ohm, Bridged
• Mono or 2-Channel Operation
• CEA-2006 Compliant
• Signal to Noise Ration: 105 dBA
• Selectable crossover modes: FULL / HPF / LPF
• Dimensions: 6-3/4" W x 8-1/4" L x 1-13/16" H

• 125 Watts RMS x 2 @ 4 ohm
• 250 Watts RMS x 2 @ 2 ohm
• 500 Watts RMS x 1 @ 4 ohm, Bridged
• Mono or 2-Channel Operation
• CEA-2006 Compliant
• Signal to Noise Ration: 105 dBA
• Selectable crossover modes: FULL / HPF / LPF
• Dimensions: 6-3/4" W x 8-1/4" L x 1-13/16" H

Power Acoustik BAMF1600/4D Open Box Complete (Very Good, Used)

1600W BAMF Series Class D 4-Channel Amplifier

BAMF1600/4D big DISCONTINUED
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Power Acoustik BAMF1600/4D Open Box Complete (Very Good, Used)

1600W BAMF Series Class D 4-Channel Amplifier

• Item Condition: Open Box
• RMS Power: 125W x 4 @ 4 ohm, 170W x 4 @ 2 ohm, 340W x 2 @ 4 ohm bridged
• Total Peak Power: 1600W
• RCA Speaker-Level (Low-Level) Inputs
• Dimensions: 7"W x 11"L x 2"H

• Item Condition: Open Box
• RMS Power: 125W x 4 @ 4 ohm, 170W x 4 @ 2 ohm, 340W x 2 @ 4 ohm bridged
• Total Peak Power: 1600W
• RCA Speaker-Level (Low-Level) Inputs
• Dimensions: 7"W x 11"L x 2"H

Hifonics EAGLE R/B

Factory Refurbished, 200W RMS Warrior Series 4-Channel Amplifier

EAGLE-RB big DISCONTINUED
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Hifonics EAGLE R/B

Factory Refurbished, 200W RMS Warrior Series 4-Channel Amplifier

Warrior Series 4-Channel Class A/B Car Amplifier • 320W RMS • 2 Variable High-Pass Filters • 3-Way System Protection Circuitry • VersaCross Open Architecture Crossovers • Symmetrical Signal Amplification

Warrior Series 4-Channel Class A/B Car Amplifier • 320W RMS • 2 Variable High-Pass Filters • 3-Way System Protection Circuitry • VersaCross Open Architecture Crossovers • Symmetrical Signal Amplification

JBL GTO-5EZ Open Box Complete (Very Good, Used)

5-Channel GTO Series Class AB/D Car Amplifier

GTO-5EZ big DISCONTINUED
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JBL GTO-5EZ Open Box Complete (Very Good, Used)

5-Channel GTO Series Class AB/D Car Amplifier

• Item Condition: Open Box
• Full-Range RMS: 50W x 4 @ 4 ohm, 75W x 4 @ 2 ohm
• Subwoofer RMS: 350W x 1 @ 4 ohm, 500W x 1 @ 2 ohm
• CEA-2006 Compliant
• 12 dB Per Octave Crossovers
• High-Efficiency Class D
• Dimensions: 14-11/16"W x 11-15/16"L x 2-5/8"H

• Item Condition: Open Box
• Full-Range RMS: 50W x 4 @ 4 ohm, 75W x 4 @ 2 ohm
• Subwoofer RMS: 350W x 1 @ 4 ohm, 500W x 1 @ 2 ohm
• CEA-2006 Compliant
• 12 dB Per Octave Crossovers
• High-Efficiency Class D
• Dimensions: 14-11/16"W x 11-15/16"L x 2-5/8"H

Exonic EX-1500DX Factory Refurbished

3000W Max, Class D Monoblock Amplifier (EX1500DX by Ample Audio)

EX-1500DX-RB big DISCONTINUED
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Exonic EX-1500DX Factory Refurbished

3000W Max, Class D Monoblock Amplifier (EX1500DX by Ample Audio)

Exonic Class D Monoblock Car Amplifier • 800W x 1 Chan. @ 4 Ohm • 1200W x 1 Chan. @ 2 Ohm • 1500W x 1 Chan. @ 1 Ohm • 3000W Max • Daisy Chain Capable • Molded Bare Wire Set Screw Terminals • RCA Level Inputs

2

Exonic Class D Monoblock Car Amplifier • 800W x 1 Chan. @ 4 Ohm • 1200W x 1 Chan. @ 2 Ohm • 1500W x 1 Chan. @ 1 Ohm • 3000W Max • Daisy Chain Capable • Molded Bare Wire Set Screw Terminals • RCA Level Inputs

Planet Audio VX2200D R/B

2250W Max, Class D Monoblock Subwoofer Amplifier (VX 2200D)

VX2200D-RB big DISCONTINUED
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Planet Audio VX2200D R/B

2250W Max, Class D Monoblock Subwoofer Amplifier (VX 2200D)

VX Series Single-Channel Monoblock Car Amplifier • Class D • 800W x 1 Chan. @ 4 Ohm • 1200W x 1 Chan. @ 2 Ohm • 2250W Max • 0-18 dB Bass Boost • High-Current MOSFET Power Supply • Amplifier Protection Circuitry

1

VX Series Single-Channel Monoblock Car Amplifier • Class D • 800W x 1 Chan. @ 4 Ohm • 1200W x 1 Chan. @ 2 Ohm • 2250W Max • 0-18 dB Bass Boost • High-Current MOSFET Power Supply • Amplifier Protection Circuitry

Hifonics BRE1600.1D (Factory Refurbished)

1600W RMS Brutus Elite Series Class D Monoblock Car Amplifier with High Dissipation Heat Sink

BRE1600.1D big DISCONTINUED
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Hifonics BRE1600.1D (Factory Refurbished)

1600W RMS Brutus Elite Series Class D Monoblock Car Amplifier with High Dissipation Heat Sink

Brutus Elite Series Monoblock Class D Car Amplifier • 1600W x 1-Chan. @ 1 Ohm • 1200W x 1-Chan. @ 2 Ohm • 600W x 1-Chan. @ 4 Ohm • Wired HFR-3 Remote • 4-Way System Protection • Phase Shift • Silver-Plated RCA Inputs

Brutus Elite Series Monoblock Class D Car Amplifier • 1600W x 1-Chan. @ 1 Ohm • 1200W x 1-Chan. @ 2 Ohm • 600W x 1-Chan. @ 4 Ohm • Wired HFR-3 Remote • 4-Way System Protection • Phase Shift • Silver-Plated RCA Inputs

Belva BB2000Dv2 - Open Box, Acceptable Condition (Used)

2000W Max (1200W RMS) Class D Monoblock BB Series Version 2 Car Amplifier(Open Box Complete Used Functional)

BB2000Dv2 big DISCONTINUED
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Belva BB2000Dv2 - Open Box, Acceptable Condition (Used)

2000W Max (1200W RMS) Class D Monoblock BB Series Version 2 Car Amplifier(Open Box Complete Used Functional)

• Item Condition: Open Box, Acceptable, Used
• RMS: 540W x 1 @ 4 ohm, 900W x 1 @ 2 ohm, 1200W x 1 @ 1 ohm
• Total Peak Power: 2000W
• 1 Pair of Preamp Outputs
• Bass Boost 0-12 dB at 30 - 80 Hz
• Subsonic Filter From Off - 50 Hz
• Dimensions: 12-1/2"W x 8-1/4"D x 2-1/4"H

1

• Item Condition: Open Box, Acceptable, Used
• RMS: 540W x 1 @ 4 ohm, 900W x 1 @ 2 ohm, 1200W x 1 @ 1 ohm
• Total Peak Power: 2000W
• 1 Pair of Preamp Outputs
• Bass Boost 0-12 dB at 30 - 80 Hz
• Subsonic Filter From Off - 50 Hz
• Dimensions: 12-1/2"W x 8-1/4"D x 2-1/4"H

NVX XPLD3K - Refurbished

True 3000W RMS, Class-D Monoblock Amplifier with Bass Remote

XPLD3K big DISCONTINUED
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NVX XPLD3K - Refurbished

True 3000W RMS, Class-D Monoblock Amplifier with Bass Remote

• RMS: 1020W x 1 @ 4 ohm, 1900W x 1 @ 2 ohm, 3000W x 1 @ 1 ohm
• Total RMS Power: 3000W
• CEA-2006 Compliant
• Wired Bass Remote Included
• Ultra Efficient Class D Design
• Dimensions: 10" W x 20.5" L x 2.5" H

• RMS: 1020W x 1 @ 4 ohm, 1900W x 1 @ 2 ohm, 3000W x 1 @ 1 ohm
• Total RMS Power: 3000W
• CEA-2006 Compliant
• Wired Bass Remote Included
• Ultra Efficient Class D Design
• Dimensions: 10" W x 20.5" L x 2.5" H

Audiopipe APCL-10001D Open Box Complete

1000W Consumer Line Series Class D Monoblock Amplifier

APCL-10001D big DISCONTINUED
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Audiopipe APCL-10001D Open Box Complete

1000W Consumer Line Series Class D Monoblock Amplifier

• Item Condition: Open Box Complete
• RMS Power: 400W x 1 @ 4 ohm, 600W x 1 @ 2 ohm, 1000W x 1 @ 1 ohm
• Total Peak Power: 1000W
• Adjustable Low Pass Filter
• High Quality Aluminum Heat Sink
• Dimensions: 6.93" W x 11.34" L x 2.16" H

• Item Condition: Open Box Complete
• RMS Power: 400W x 1 @ 4 ohm, 600W x 1 @ 2 ohm, 1000W x 1 @ 1 ohm
• Total Peak Power: 1000W
• Adjustable Low Pass Filter
• High Quality Aluminum Heat Sink
• Dimensions: 6.93" W x 11.34" L x 2.16" H

Hifonics ZRX2400.1D Open Box Complete (Very Good, Used)

2400W Max Class D Monoblock Zeus Series Amplifier

ZRX2400.1D big DISCONTINUED
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Hifonics ZRX2400.1D Open Box Complete (Very Good, Used)

2400W Max Class D Monoblock Zeus Series Amplifier

• Item Condition: Open Box
• Peak: 650W x 1 @ 4 ohm, 1200W x 1 @ 2 ohm, 2400W x 1 @ 1 ohm
• Total Peak Power: 2400W
• Class D Circuitry
• Variable Bass Boost: 0 to +10 dB at 50 Hz
• Wired Bass Remote Included
• Dimensions: 17-3/16"L x 10"W x 2-7/16"H

• Item Condition: Open Box
• Peak: 650W x 1 @ 4 ohm, 1200W x 1 @ 2 ohm, 2400W x 1 @ 1 ohm
• Total Peak Power: 2400W
• Class D Circuitry
• Variable Bass Boost: 0 to +10 dB at 50 Hz
• Wired Bass Remote Included
• Dimensions: 17-3/16"L x 10"W x 2-7/16"H

NVX JAD800.4 Open Box, Good Condition Used

True 800W RMS, Full Range Class D 4-Channel Amplifier (JAD-800.4) Open Box Complete- Good/Used

JAD800.4 big DISCONTINUED
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NVX JAD800.4 Open Box, Good Condition Used

True 800W RMS, Full Range Class D 4-Channel Amplifier (JAD-800.4) Open Box Complete- Good/Used

• 4 ohm: 125 watts x 4-Chan.
• 2 ohm: 200 watts x 4-Chan.
• Bridged, 4 ohm: 400 x 2 chan.
• Pulse Width Modulated MOSFET Power Supply
• 4/3/2 Channel Operation

2

• 4 ohm: 125 watts x 4-Chan.
• 2 ohm: 200 watts x 4-Chan.
• Bridged, 4 ohm: 400 x 2 chan.
• Pulse Width Modulated MOSFET Power Supply
• 4/3/2 Channel Operation

American Bass VFL44801D Open Box Complete

4500W VFL Series Class D Mono Hybrid Car Amplifier

VFL44801D big DISCONTINUED
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American Bass VFL44801D Open Box Complete

4500W VFL Series Class D Mono Hybrid Car Amplifier

• Item Condition: Open Box Complete
• 4500W VFL Series Class D Mono Hybrid Car Amplifier
• MAX Power at 1 Ohm: 4500 x 1
• Remote bass knob
• Frequency Response: 15Hz ~ 300KHz
• Signal to Noise Ratio: 85db
• Four way protection: DC, Speaker short, Thermal, Voltage

• Item Condition: Open Box Complete
• 4500W VFL Series Class D Mono Hybrid Car Amplifier
• MAX Power at 1 Ohm: 4500 x 1
• Remote bass knob
• Frequency Response: 15Hz ~ 300KHz
• Signal to Noise Ratio: 85db
• Four way protection: DC, Speaker short, Thermal, Voltage

Sony XM-GS6DSP (Open Box, Complete)

780W RMS GS Series 2-ohm Stable 5/6 Channel Class-D Amplifier with Digital Signal Processor

XM-GS6DSP big DISCONTINUED
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Sony XM-GS6DSP (Open Box, Complete)

780W RMS GS Series 2-ohm Stable 5/6 Channel Class-D Amplifier with Digital Signal Processor

• 45W x 4 chan., 90W x 2 (Sub channel) @ 4 ohm
• 175W x 2 (Subwoofer), 600W x 1 @ 2 ohm
• Total Peak Power: 780 Watts
• CTA2006 Compliant
• Built-In Digital Signal Processor
• Control Settings and Stream Music via Bluetooth
• Dimensions: 11-5/8" W x 7-7/8" L x 2-1/8" H

• 45W x 4 chan., 90W x 2 (Sub channel) @ 4 ohm
• 175W x 2 (Subwoofer), 600W x 1 @ 2 ohm
• Total Peak Power: 780 Watts
• CTA2006 Compliant
• Built-In Digital Signal Processor
• Control Settings and Stream Music via Bluetooth
• Dimensions: 11-5/8" W x 7-7/8" L x 2-1/8" H

AudioControl ACM2300 (Open Box, Complete)

300W RMS ACM Series 2 ohm Stable 2-Channel Class-D Amplifier

ACM-2.300 big DISCONTINUED
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AudioControl ACM2300 (Open Box, Complete)

300W RMS ACM Series 2 ohm Stable 2-Channel Class-D Amplifier

• 75 Watts RMS x 2 @ 4 ohm
• 150 Watts RMS x 2 @ 2 ohm
• 300 Watts RMS x 1 @ 4 ohm
• Small Footprint for Flexible Mounting
• AccuBASS and GTO Signal Sense Built In
• Linkwitz-Riley Crossover
• Aluminum Heatsink
• Dimensions: 9.4" W x 3" L x 1.75" H

• 75 Watts RMS x 2 @ 4 ohm
• 150 Watts RMS x 2 @ 2 ohm
• 300 Watts RMS x 1 @ 4 ohm
• Small Footprint for Flexible Mounting
• AccuBASS and GTO Signal Sense Built In
• Linkwitz-Riley Crossover
• Aluminum Heatsink
• Dimensions: 9.4" W x 3" L x 1.75" H

Alpine MRV-F300 Open Box Complete

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

MRV-F300 big DISCONTINUED
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Alpine MRV-F300 Open Box Complete

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

• Item Condition: Open Box Complete
• 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

• Item Condition: Open Box Complete
• 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

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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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