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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 (60)
Zeus Series (53)
X Series (38)
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CX Series (27)
XDM Series (26)
N Series (24)
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SFB Series (22)
HD Series (21)
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JAD Series (19)
Kappa Series (19)
KX Series (17)
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ONYX Series (14)
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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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Volfenhag ZX-MONOBLOCK

1800W Max, Class D Monoblock Amplifier

ZX-MONOBLOCK big DISCONTINUED
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Volfenhag ZX-MONOBLOCK

1800W Max, Class D Monoblock Amplifier

ZX Series Class D Monoblock Car Amplifier • 300W x 1 chan. @ 4 ohm • 500W x 1 chan. @ 2 ohm • 650W x 1 chan. @ 1 ohm • 1800W x 1 chan. Max • PWM MOSFET Power Supply • Master/slave functions • Built-in Cooling Fan

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ZX Series Class D Monoblock Car Amplifier • 300W x 1 chan. @ 4 ohm • 500W x 1 chan. @ 2 ohm • 650W x 1 chan. @ 1 ohm • 1800W x 1 chan. Max • PWM MOSFET Power Supply • Master/slave functions • Built-in Cooling Fan

Power Acoustik D1-3000D

3000W Monoblock Class D Demon Series Car Amplifier

D1-3000D big DISCONTINUED
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Power Acoustik D1-3000D

3000W Monoblock Class D Demon Series Car Amplifier

• RMS: 900W x 1 @ 4 ohm, 1300W x 1 @ 2 ohm, 1700W x 1 @ 1 ohm
• Total Peak Power: 3000W
• Wired Bass Remote Included
• Bass Boost: 0-18 dB
• Class D Circuitry
• Dimensions: 13-11/16"L x 11-13/16"W x 2-5/8"H

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• RMS: 900W x 1 @ 4 ohm, 1300W x 1 @ 2 ohm, 1700W x 1 @ 1 ohm
• Total Peak Power: 3000W
• Wired Bass Remote Included
• Bass Boost: 0-18 dB
• Class D Circuitry
• Dimensions: 13-11/16"L x 11-13/16"W x 2-5/8"H

Power Acoustik REP1-6000D

3300W RMS Class D Monoblock Car Power Amplifier

REP1-6000D big DISCONTINUED
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Power Acoustik REP1-6000D

3300W RMS Class D Monoblock Car Power Amplifier

• Peak: 1200W x 1 @ 4 ohm, 1500W x 1 @ 2 ohm, 2000W x 1 @ 1 ohm
• Total Peak Power: 6000W
• Wired Bass Remote Included
• Bass Boost: 0-18 dB
• Class D Circuitry
• Dimensions: 9"W x 17-1/4"D x 2-1/2"H

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• Peak: 1200W x 1 @ 4 ohm, 1500W x 1 @ 2 ohm, 2000W x 1 @ 1 ohm
• Total Peak Power: 6000W
• Wired Bass Remote Included
• Bass Boost: 0-18 dB
• Class D Circuitry
• Dimensions: 9"W x 17-1/4"D x 2-1/2"H

Kole Audio TRAX1-4000D (TRAX 1-4000D)

4000W Max, TRAX Series Class D Digital Monoblock Amplifier

TRAX-1-4000D big DISCONTINUED
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Kole Audio TRAX1-4000D (TRAX 1-4000D)

4000W Max, TRAX Series Class D Digital Monoblock Amplifier

TRAX Series Class D Digital Monoblock Amplifier • 2200W x 1 chan. @ 1 ohm • 1700W x 1 chan. @ 2 ohm • 1200W x 1 chan. @ 4 ohm • 4000W Max • PWM Power Supply • Midnight Blue Finish • Three-Way Protection •

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TRAX Series Class D Digital Monoblock Amplifier • 2200W x 1 chan. @ 1 ohm • 1700W x 1 chan. @ 2 ohm • 1200W x 1 chan. @ 4 ohm • 4000W Max • PWM Power Supply • Midnight Blue Finish • Three-Way Protection •

Crunch GP2500D

2500W Max, Ground Pounder Class D Monoblock Amplifier GP 2500D

GP2500D big DISCONTINUED
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Crunch GP2500D

2500W Max, Ground Pounder Class D Monoblock Amplifier GP 2500D

Ground Pounder Series 1-Channel Class D Car Amplifier • 625W x 1 chan. @ 4 ohm • 1250W x 1 chan. @ 2 ohm • 2500W x 1 chan. Max • PWM MOSFET Power Supply • DC, short, thermal, and overload protection circuitry

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Ground Pounder Series 1-Channel Class D Car Amplifier • 625W x 1 chan. @ 4 ohm • 1250W x 1 chan. @ 2 ohm • 2500W x 1 chan. Max • PWM MOSFET Power Supply • DC, short, thermal, and overload protection circuitry

Eclipse XA1200

600W Max, XA Series Class D Monoblock Car Amplifier (XA-1200)

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Eclipse XA1200

600W Max, XA Series Class D Monoblock Car Amplifier (XA-1200)

XA Series Class D Monoblock Car Amplifier • 350 Watts x 1 Chan. @ 4 Ohm • 500 Watts x 1 Chan. @ 2 Ohm • 600 Watts • Variable Low-Pass Filter • ICEpower Design • CEA-2006 Compliant • LED Power Indicators

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XA Series Class D Monoblock Car Amplifier • 350 Watts x 1 Chan. @ 4 Ohm • 500 Watts x 1 Chan. @ 2 Ohm • 600 Watts • Variable Low-Pass Filter • ICEpower Design • CEA-2006 Compliant • LED Power Indicators

Earthquake Sound PH2000W/D1

2000W Max, Monoblock Class D Power House Series Digital Car Amplifier

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Earthquake Sound PH2000W/D1

2000W Max, Monoblock Class D Power House Series Digital Car Amplifier

Power House Monoblock Class D Car Amplifier • 500W x 1 Chan. @ 4 ohm • 1000W x 1 Chan. @ 2 ohm • High-Level Speaker Inputs • Low-Level RCA Inputs • Variable Low-Pass Filter • Variable Bass Boost

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Power House Monoblock Class D Car Amplifier • 500W x 1 Chan. @ 4 ohm • 1000W x 1 Chan. @ 2 ohm • High-Level Speaker Inputs • Low-Level RCA Inputs • Variable Low-Pass Filter • Variable Bass Boost

** DO NOT USE - DUPLICATE ** Infinity KAPPA FIVE AM

1200W Max, Kappa Series 5-Channel Class D Car Amplifier

DO NOT USE KAPPA FIVE AM big DISCONTINUED
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** DO NOT USE - DUPLICATE ** Infinity KAPPA FIVE AM

1200W Max, Kappa Series 5-Channel Class D Car Amplifier

• Full-Range RMS: 50W x 4 @ 4 ohm, 75W x 4 @ 2 ohm
• Subwoofer RMS: 200W x 1 @ 4 ohm, 300W x 1 @ 2 ohm
• CEA-2006 Compliant
• 12 dB Per Octave Crossovers
• Differential Signal Inputs
• Dimensions: 14-3/16"L x 7-1/16"W x 1-3/4"H

• Full-Range RMS: 50W x 4 @ 4 ohm, 75W x 4 @ 2 ohm
• Subwoofer RMS: 200W x 1 @ 4 ohm, 300W x 1 @ 2 ohm
• CEA-2006 Compliant
• 12 dB Per Octave Crossovers
• Differential Signal Inputs
• Dimensions: 14-3/16"L x 7-1/16"W x 1-3/4"H

JBL BPX1100.1

Power Series Class D Monoblock Amplifier

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JBL BPX1100.1

Power Series Class D Monoblock Amplifier

Power Series Class D Monoblock Car Amplifier • 1141W x 1 chan. @ 4 ohm • 1022W x 1 chan. @ 1 ohm • 1312W x 1 chan. Max • Current Servo Circuitry with Crown Technology • Parallel/bridgeable operation

Power Series Class D Monoblock Car Amplifier • 1141W x 1 chan. @ 4 ohm • 1022W x 1 chan. @ 1 ohm • 1312W x 1 chan. Max • Current Servo Circuitry with Crown Technology • Parallel/bridgeable operation

Cerwin-Vega V600.4

600W Vega Series 4-Channel Class D Car Amplifier

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Cerwin-Vega V600.4

600W Vega Series 4-Channel Class D Car Amplifier

• RMS Power: 100W x 4 @ 4 ohm, 175W x 4 @ 2 ohm,
• Bridged, 4 ohm: 300 watts x 2 chan.
• Tiffany Style Low Level RCA Inputs
• Dimensions: 7.25"W x 10.47"L x 1.93"H

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• RMS Power: 100W x 4 @ 4 ohm, 175W x 4 @ 2 ohm,
• Bridged, 4 ohm: 300 watts x 2 chan.
• Tiffany Style Low Level RCA Inputs
• Dimensions: 7.25"W x 10.47"L x 1.93"H

Soundstream PCA1000D

1000W RMS, Class D Monoblock Picasso Series Amplifier

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Soundstream PCA1000D

1000W RMS, Class D Monoblock Picasso Series Amplifier

Monoblock Picasso Series Amplifier • 500W RMS x 1 @ 4 • 1000W RMX x 1 @ 1 • Wired Remote • TST • Class D • Built-In Crossovers • IDI • Platinum RCA Connectors • Tri-Guard

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Monoblock Picasso Series Amplifier • 500W RMS x 1 @ 4 • 1000W RMX x 1 @ 1 • Wired Remote • TST • Class D • Built-In Crossovers • IDI • Platinum RCA Connectors • Tri-Guard

Cerwin-Vega H41500.1D

1500W HED Monoblock Series Class D Amplifier

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Cerwin-Vega H41500.1D

1500W HED Monoblock Series Class D Amplifier

• RMS Power: 750W x 1 @ 1 ohm
• Total Peak Power: 1500W
• Variable Low-Pass Filter
• Pulse Width Modulated MOSFET Power Supply
• Heavy-Grade Aluminum Alloy Extruded Heatsink

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• RMS Power: 750W x 1 @ 1 ohm
• Total Peak Power: 1500W
• Variable Low-Pass Filter
• Pulse Width Modulated MOSFET Power Supply
• Heavy-Grade Aluminum Alloy Extruded Heatsink

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

Earthquake Sound PH10000W/D1

5000W Max Monoblock Class D Power House Series Digital Car Amplifier

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Earthquake Sound PH10000W/D1

5000W Max Monoblock Class D Power House Series Digital Car Amplifier

• RMS: 1500W x 1 @ 4 ohm, 3000W x 1 @ 2 ohm
• Total Peak Power: 5000W
• Preamp RCA Outputs
• Bass Boost: 0-10 dB
• Class D Circuitry
• Dimensions: 16-1/2"L x 10-1/8"W x 2-3/8"H

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• RMS: 1500W x 1 @ 4 ohm, 3000W x 1 @ 2 ohm
• Total Peak Power: 5000W
• Preamp RCA Outputs
• Bass Boost: 0-10 dB
• Class D Circuitry
• Dimensions: 16-1/2"L x 10-1/8"W x 2-3/8"H

JBL BPX2200.1

Power Series 2-Channel Class D Amplifier

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JBL BPX2200.1

Power Series 2-Channel Class D Amplifier

Power Series 2-Channel Class D Car Amplifier • 2450W x 1 chan. @ 4 ohm • 450W x 2 chan. @ 4 ohm • 1810W x 1 chan. @ 1 ohm • Max power output: 2940 watts x 1 chan. • Dynamic Bass Optimization • Two channels can also be connected in parallel

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Power Series 2-Channel Class D Car Amplifier • 2450W x 1 chan. @ 4 ohm • 450W x 2 chan. @ 4 ohm • 1810W x 1 chan. @ 1 ohm • Max power output: 2940 watts x 1 chan. • Dynamic Bass Optimization • Two channels can also be connected in parallel

Focal FDP4.600

Class-D 4-Channel Amplifier (150 W RMS x 4 @ 2 Ohms)

FDP 4.600 big DISCONTINUED
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Focal FDP4.600

Class-D 4-Channel Amplifier (150 W RMS x 4 @ 2 Ohms)

• 4-Channel Class D Amplifier
• 150 x 4 W RMS @ 4 Ohm
• 200 x 4 W RMS @ 2 Ohm
• Very small size for the amount of power
• Can be used in 2, 3, or 4 channel modes

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• 4-Channel Class D Amplifier
• 150 x 4 W RMS @ 4 Ohm
• 200 x 4 W RMS @ 2 Ohm
• Very small size for the amount of power
• Can be used in 2, 3, or 4 channel modes

Precision Power PPI A900.1

900W Atom Series Monoblock Class D Car Amplifier

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Precision Power PPI A900.1

900W Atom Series Monoblock Class D Car Amplifier

• RMS Power: 300W x 1 @ 4 ohm, 450W x 1 @ 2 ohm
• Total Peak Power: 900W
• Variable Low-Pass Filter (35-250 Hz, 24 dB/octave)
• Dimensions: 5"W x 7.2"L x 1.5"H

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• RMS Power: 300W x 1 @ 4 ohm, 450W x 1 @ 2 ohm
• Total Peak Power: 900W
• Variable Low-Pass Filter (35-250 Hz, 24 dB/octave)
• Dimensions: 5"W x 7.2"L x 1.5"H

Massive Audio BP4000.1

4000W Max (2000W RMS) Blade BP Series 2 ohm Stable Monoblock Class-D Amplifier

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Massive Audio BP4000.1

4000W Max (2000W RMS) Blade BP Series 2 ohm Stable Monoblock Class-D Amplifier

• 1000 Watts RMS x 1 @ 4 ohm
• 2000 Watts RMS x 1 @ 2 ohm
• Total Peak Power: 4000 Watts
• CTA-2006 Compliant
• 0-12 dB Bass Boost
• Aluminum Heatsink
• Dimensions: 7.5" W x 9.9" L x 2.2" H

• 1000 Watts RMS x 1 @ 4 ohm
• 2000 Watts RMS x 1 @ 2 ohm
• Total Peak Power: 4000 Watts
• CTA-2006 Compliant
• 0-12 dB Bass Boost
• Aluminum Heatsink
• Dimensions: 7.5" W x 9.9" L x 2.2" H

Soundstream PCX2000D (PCX-2000D)

2000W RMS, Class D Monoblock Picasso Series Amplifier

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Soundstream PCX2000D (PCX-2000D)

2000W RMS, Class D Monoblock Picasso Series Amplifier

Picasso Series Monoblock Class D Car Amplifier • 1100W x 1 chan. @ 4 ohm • 2000W RMS • Twin Stack Technology • Anodized heatsink • Variable low-pass filter • Subsonic filter

Picasso Series Monoblock Class D Car Amplifier • 1100W x 1 chan. @ 4 ohm • 2000W RMS • Twin Stack Technology • Anodized heatsink • Variable low-pass filter • Subsonic filter

PowerBass Xtreme XAX-2160FD

320W RMS XAX Series Full Range Class D 2-Channel Mini Amplifier

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PowerBass Xtreme XAX-2160FD

320W RMS XAX Series Full Range Class D 2-Channel Mini Amplifier

XAX Series 2-Channel Class D Mini Car Amplifier • 640W MAX • High Efficiency SMD Circuit Technology • Damping Control Circuit • Blue LED Logo, Power And Speaker Terminal Lighting • Platinum-Plated Tiffany RCA Inputs

XAX Series 2-Channel Class D Mini Car Amplifier • 640W MAX • High Efficiency SMD Circuit Technology • Damping Control Circuit • Blue LED Logo, Power And Speaker Terminal Lighting • Platinum-Plated Tiffany RCA Inputs

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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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