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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)
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GM Digital Series (12)
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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.

Audiopipe AP-15001D

1500W, Class D Monoblock Power Car Amplifier

AP-15001D big DISCONTINUED
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Audiopipe AP-15001D

1500W, Class D Monoblock Power Car Amplifier

• • • • • Description Coming Soon! • • • • •

• • • • • Description Coming Soon! • • • • •

Planet Audio PX4000D

4000W Max Axis Series Class D Monoblock Car Amplifier

PX4000D big DISCONTINUED
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Planet Audio PX4000D

4000W Max Axis Series Class D Monoblock Car Amplifier

• RMS: 1100W x 1 @ 4 ohm, 1800W x 1 @ 2 ohm, 2400W x 1 @ 1 ohm
• Total Peak Power: 4000W
• Wired Bass Knob Included
• Switchable Bass Boost: 0 or +18 dB at 50 Hz
• Class D Circuitry
• Dimensions: 10-11/16"W x 14-3/4"D x 2-3/8"H

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• RMS: 1100W x 1 @ 4 ohm, 1800W x 1 @ 2 ohm, 2400W x 1 @ 1 ohm
• Total Peak Power: 4000W
• Wired Bass Knob Included
• Switchable Bass Boost: 0 or +18 dB at 50 Hz
• Class D Circuitry
• Dimensions: 10-11/16"W x 14-3/4"D x 2-3/8"H

Autotek SS1000.1D R/B

1000W RMS Class D Monoblock Super Sport Series Amplifier

SS1000.1D-RB big DISCONTINUED
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Autotek SS1000.1D R/B

1000W RMS Class D Monoblock Super Sport Series Amplifier

Super Sport Monoblock Class D Car Amplifier • 450W RMS x 1 chan. @ 4 ohm • 1000W RMS X 1 chan. @ 1 ohm • MOSFET Power supply • Adjustable bass EQ • Adjustable low-pass filter • Variable subsonic filter

Super Sport Monoblock Class D Car Amplifier • 450W RMS x 1 chan. @ 4 ohm • 1000W RMS X 1 chan. @ 1 ohm • MOSFET Power supply • Adjustable bass EQ • Adjustable low-pass filter • Variable subsonic filter

Hifonics XX-Colossus II

3200 watts RMS, "Hybrid" Monoblock / 2-Channel Super Class D Amplifier

XX-COLOSSUS-II big DISCONTINUED
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Hifonics XX-Colossus II

3200 watts RMS, "Hybrid" Monoblock / 2-Channel Super Class D Amplifier

1/2-Channel Super-D Amplifier • 1600W RMS x 2 @ 1 Ohm • 3200W RMS x 1 @ 2 Ohm • 1100W RMS x 2 @ 2 Ohm • 1 Ohm Stable Stereo, 2 Ohm Stable Mono • Gold Plated RCA Connectors

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1/2-Channel Super-D Amplifier • 1600W RMS x 2 @ 1 Ohm • 3200W RMS x 1 @ 2 Ohm • 1100W RMS x 2 @ 2 Ohm • 1 Ohm Stable Stereo, 2 Ohm Stable Mono • Gold Plated RCA Connectors

Focal FPX1.100

Monoblock Class D Premium Amplifier

FPX1.100 big DISCONTINUED
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Focal FPX1.100

Monoblock Class D Premium Amplifier

• 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

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VIP Product Get $60.00 in rewards to spend later

• 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

Soundstream Di475.1

475W, Class D Monoblock Amplifier (Di 475.1)

Di475.1 big DISCONTINUED
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Soundstream Di475.1

475W, Class D Monoblock Amplifier (Di 475.1)

Extreme Bass Machine Single-Channel Car Amplifier • Class D2 • 350W x 1 Chan. @ 4 ohm • 475W x 1 Chan. @ 2 ohm • Selectable Bass Boost • Speaker-Level Inputs • 3 Stage Protection Circuit • Compact Chassis and Design

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Extreme Bass Machine Single-Channel Car Amplifier • Class D2 • 350W x 1 Chan. @ 4 ohm • 475W x 1 Chan. @ 2 ohm • Selectable Bass Boost • Speaker-Level Inputs • 3 Stage Protection Circuit • Compact Chassis and Design

RE Audio XT-2000DEV3

2000W Max, 1-Channel Monoblock Class "DE" Digital Stereo Amplifier

XT-2000DEV3 big DISCONTINUED
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RE Audio XT-2000DEV3

2000W Max, 1-Channel Monoblock Class "DE" Digital Stereo Amplifier

XT V3 Series 2-Channel Digital Car Amplifier • Class DE • 400W x 1 Chan. @ 4 Ohm • 700W x 1 Chan @ 2 Ohm • 1000W x 1 Chan. @ 1 Ohm • Elevated Efficiency Platform • Low-Pass Filter • Aluminum Heatsink

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XT V3 Series 2-Channel Digital Car Amplifier • Class DE • 400W x 1 Chan. @ 4 Ohm • 700W x 1 Chan @ 2 Ohm • 1000W x 1 Chan. @ 1 Ohm • Elevated Efficiency Platform • Low-Pass Filter • Aluminum Heatsink

Audiopipe APK-4500

4500W APK Series Monoblock Class D Car Amplifier

APK-4500 big DISCONTINUED
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Audiopipe APK-4500

4500W APK Series Monoblock Class D Car Amplifier

• RMS Power: 1350W x 1 @ 4 ohm, 2500W x 1 @ 2 ohm, 4300W x 1 @ 1 ohm
• Total Peak Power: 4500W
• Variable Low-Pass Filter (35-250 Hz, 24 dB/Octave)
• Dimensions: 9"W x 25"L x 2.5"H
• High Purity Copper Trace Circuit Boards

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• RMS Power: 1350W x 1 @ 4 ohm, 2500W x 1 @ 2 ohm, 4300W x 1 @ 1 ohm
• Total Peak Power: 4500W
• Variable Low-Pass Filter (35-250 Hz, 24 dB/Octave)
• Dimensions: 9"W x 25"L x 2.5"H
• High Purity Copper Trace Circuit Boards

JL Audio G-MAX

1200W Max, G-Series Class D Monoblock Subwoofer Amplifer

G-MAX big DISCONTINUED
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JL Audio G-MAX

1200W Max, G-Series Class D Monoblock Subwoofer Amplifer

G-Series Single-Channel Monoblock Class D Car Amplifier • Power Rating @ 14.4V or 12.5V • 1200W x 1 Chan. 2 ohm • 600W x 1 Chan. @ 4 ohm • Bass Boost • Differential-balanced input topology • Pass-Through Preamps

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G-Series Single-Channel Monoblock Class D Car Amplifier • Power Rating @ 14.4V or 12.5V • 1200W x 1 Chan. 2 ohm • 600W x 1 Chan. @ 4 ohm • Bass Boost • Differential-balanced input topology • Pass-Through Preamps

Autotek MM2050.1

2000W Mean Machine Series Monoblock Class D Car Amplifier

MM2050.1 big DISCONTINUED
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Autotek MM2050.1

2000W Mean Machine Series Monoblock Class D Car Amplifier

• Max Power: 500W x 1 @ 4 ohm, 1000W x 1 @ 2 ohm
• Total Peak Power: 2000W
• Fully Adjustable Pro-Design Crossovers
• Dimensions: 9.72" W x 9.84" L x 2.28" H

• Max Power: 500W x 1 @ 4 ohm, 1000W x 1 @ 2 ohm
• Total Peak Power: 2000W
• Fully Adjustable Pro-Design Crossovers
• Dimensions: 9.72" W x 9.84" L x 2.28" H

MTX Thunder Elite 4001D (TE4001D)

7500W Max, Class D Monoblock Thunder Elite Amplifier

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MTX Thunder Elite 4001D (TE4001D)

7500W Max, Class D Monoblock Thunder Elite Amplifier

• RMS: 1250W x 1 @ 4 ohm, 2200W x 1 @ 2 ohm, 3750W x 1 @ 1 ohm
• Total Peak Power: 3750W
• Heavy Duty Aluminum Alloy Heatsink
• Bass Boost: 0 - 12 dB
• Class D Circuitry
• Dimensions: 20-11/16" L x 9-5/8" W x 2-1/2" H

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• RMS: 1250W x 1 @ 4 ohm, 2200W x 1 @ 2 ohm, 3750W x 1 @ 1 ohm
• Total Peak Power: 3750W
• Heavy Duty Aluminum Alloy Heatsink
• Bass Boost: 0 - 12 dB
• Class D Circuitry
• Dimensions: 20-11/16" L x 9-5/8" W x 2-1/2" H

PowerBass Xtreme XTA-4000D

4000W RMS XTA Series Class D Monoblock Amplifier

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PowerBass Xtreme XTA-4000D

4000W RMS XTA Series Class D Monoblock Amplifier

XTA Series Monoblock Class D Car Amplifier • 4000W RMS • Dual Link Strapping Capability • Heavy-Duty Brass CNC Machined Terminal Blocks • Variable Bass Boost • Wired Remote Level Control • 4-Way System Protection Circuitry

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XTA Series Monoblock Class D Car Amplifier • 4000W RMS • Dual Link Strapping Capability • Heavy-Duty Brass CNC Machined Terminal Blocks • Variable Bass Boost • Wired Remote Level Control • 4-Way System Protection Circuitry

Boss OL5KD

5000W Max, Class D Monoblock Outlaw Series Amplifier

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Boss OL5KD

5000W Max, Class D Monoblock Outlaw Series Amplifier

Boss Outlaw Monoblock Class D Car Amplifier • 2250W x 1 Chan. @ 4 ohm • 3500W x 1 Chan. @ 2 ohm • 5000W x 1 Chan. @ 1 ohm • Wired Remote Bass • Preamp RCA Outputs • Tuned Bass EQ • LED Indicators • Subsonic Filter

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Boss Outlaw Monoblock Class D Car Amplifier • 2250W x 1 Chan. @ 4 ohm • 3500W x 1 Chan. @ 2 ohm • 5000W x 1 Chan. @ 1 ohm • Wired Remote Bass • Preamp RCA Outputs • Tuned Bass EQ • LED Indicators • Subsonic Filter

Planet Audio RXD2400 R/B

3000W Max, Class D Monoblock Subwoofer Amplifier

RXD2400-RB big DISCONTINUED
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Planet Audio RXD2400 R/B

3000W Max, Class D Monoblock Subwoofer Amplifier

RX Series Mono-Block Class D Car Amplifier • 1000W x 1 Chan. @ 4 Ohm • 1600W x 1 Chan. @ 2 Ohm • 2400W x 1 Chan. @ 1 Ohm • 0-18 dB Bass Boost • Protection Circuitry • Low-Pass and Subsonic Filter • LED Indicators

RX Series Mono-Block Class D Car Amplifier • 1000W x 1 Chan. @ 4 Ohm • 1600W x 1 Chan. @ 2 Ohm • 2400W x 1 Chan. @ 1 Ohm • 0-18 dB Bass Boost • Protection Circuitry • Low-Pass and Subsonic Filter • LED Indicators

Diamond Audio D3 800.1

800 watts, Class D Monoblock Amplifier

D3-800.1 big DISCONTINUED
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Diamond Audio D3 800.1

800 watts, Class D Monoblock Amplifier

Class D Monoblock Amplifier • MOSFET power supply • 800W x 1 @ 1 Ohm RMS • 610W x 1 @ 2 Ohm RMS • Variable bass boost • Aluminum heat sink

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Class D Monoblock Amplifier • MOSFET power supply • 800W x 1 @ 1 Ohm RMS • 610W x 1 @ 2 Ohm RMS • Variable bass boost • Aluminum heat sink

Sound Storm Labs (SSL) EV4000D Open Box Missing (Acceptable, Used)

4000W Max, Evolution Series Class D Monoblock Power Amplifier Open Box Missing (Acceptable, Used)

EV4000D big DISCONTINUED
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Sound Storm Labs (SSL) EV4000D Open Box Missing (Acceptable, Used)

4000W Max, Evolution Series Class D Monoblock Power Amplifier Open Box Missing (Acceptable, Used)

• RMS: 1600W x 1 @ 4 ohm
• Peak: 3000W x 1 @ 2 ohm, 4000W x 1 @ 1 ohm
• Wired Bass Level Remote
• Bass Boost: 0-18 dB
• DataLink Cable for Connecting Two Evolution Amps
• Dimensions: 10"D x 15"W x 2-3/8"H

• RMS: 1600W x 1 @ 4 ohm
• Peak: 3000W x 1 @ 2 ohm, 4000W x 1 @ 1 ohm
• Wired Bass Level Remote
• Bass Boost: 0-18 dB
• DataLink Cable for Connecting Two Evolution Amps
• Dimensions: 10"D x 15"W x 2-3/8"H

SPL DK-3400D

3400W Max, Phantom Series Class D Monoblock Amplifier ( DK3400D )

DK-3400D big DISCONTINUED
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SPL DK-3400D

3400W Max, Phantom Series Class D Monoblock Amplifier ( DK3400D )

SPL DK-3400D 3400W Max, Phantom Series Class D Monoblock Amplifier • 4 ohm: 1400 watts x 1 chan. • 2 ohm: 2100 watts x 1 chan. • 1 ohm: 2600 watts x 1 chan.

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SPL DK-3400D 3400W Max, Phantom Series Class D Monoblock Amplifier • 4 ohm: 1400 watts x 1 chan. • 2 ohm: 2100 watts x 1 chan. • 1 ohm: 2600 watts x 1 chan.

Autotek Street Machine SM6000.1

6000W Single Channel Monoblock Street Machine Series Class D Car Amplifier

SM6000.1 big DISCONTINUED
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Autotek Street Machine SM6000.1

6000W Single Channel Monoblock Street Machine Series Class D Car Amplifier

• Peak: 1500W x 1 @ 4 ohm, 3000W x 1 @ 2 ohm, 6000W x 1 @ 1 ohm
• Total Peak Power: 6000W
• 1 Pair of Preamp Outputs
• Bass Boost 0-12 dB at 50 Hz
• Iluminated Power VU Meter for Stylish Retro Look
• Dimensions: 9-3/8"W x 14-3/16"D x 2-1/2"H

1

• Peak: 1500W x 1 @ 4 ohm, 3000W x 1 @ 2 ohm, 6000W x 1 @ 1 ohm
• Total Peak Power: 6000W
• 1 Pair of Preamp Outputs
• Bass Boost 0-12 dB at 50 Hz
• Iluminated Power VU Meter for Stylish Retro Look
• Dimensions: 9-3/8"W x 14-3/16"D x 2-1/2"H

Rockford Fosgate Power T1500-1bd (T15001bd)

1500W RMS, Power Series Compact Class bD Amplifier

T1500-1bD big DISCONTINUED
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Rockford Fosgate Power T1500-1bd (T15001bd)

1500W RMS, Power Series Compact Class bD Amplifier

4 ohm: 500 watts x 1 • 2 ohm: 1000 watts x 1 • 1 ohm: 1500 watts x 1 • CEA 2006 standard ratings for real-world power • High Efficiency Class bd Topology • Bass boost: 24 dB • Frequency Response: 20-250 Hz

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4 ohm: 500 watts x 1 • 2 ohm: 1000 watts x 1 • 1 ohm: 1500 watts x 1 • CEA 2006 standard ratings for real-world power • High Efficiency Class bd Topology • Bass boost: 24 dB • Frequency Response: 20-250 Hz

JBL Stadium 600 Amplifier + Free $100 Gift Card

1500W Max (600W RMS) Series 4 ohm Stable Monoblock Class-D Amplifier w/ Remote Bass Control

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JBL Stadium 600 Amplifier + Free $100 Gift Card

1500W Max (600W RMS) Series 4 ohm Stable Monoblock Class-D Amplifier w/ Remote Bass Control

• 380 Watts RMS x 1 @ 4 ohm
• 600 Watts RMS x 1 @ 2 ohm
• Total Peak Power: 1500 Watts
• CEA-2006 Compliant
• 0 to 9dB Bass Boost

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• 380 Watts RMS x 1 @ 4 ohm
• 600 Watts RMS x 1 @ 2 ohm
• Total Peak Power: 1500 Watts
• CEA-2006 Compliant
• 0 to 9dB Bass Boost

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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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