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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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XDM Series (26)
SALT Series (24)
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SFB Series (22)
HD Series (21)
JAD Series (19)
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JD Series (17)
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XD-v2 Series (16)
ONYX Series (14)
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Picasso-Nano Series (14)
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V Power Series (14)
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iON Series (10)
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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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NVX XAD12

1500W RMS X-Series Full-Bridge Class D 1-Ohm Stable Monoblock Amplifier

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NVX XAD12

1500W RMS X-Series Full-Bridge Class D 1-Ohm Stable Monoblock Amplifier

• 500 watts x 1 channel @ 4 ohm
• 750 watts x 1 channel @ 2 ohm
• 1500 watts x 1 channel @ 1 ohm
• Total RMS Power: 1500 watts
• Frequency Response: 10 - 300 Hz
• CEA-2006 Compliant Amplifier

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• 500 watts x 1 channel @ 4 ohm
• 750 watts x 1 channel @ 2 ohm
• 1500 watts x 1 channel @ 1 ohm
• Total RMS Power: 1500 watts
• Frequency Response: 10 - 300 Hz
• CEA-2006 Compliant Amplifier

NVX NDA501

1960W Peak (980W) RMS N-Series Class-D 5-Channel Car Audio Amplifier

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NVX NDA501

1960W Peak (980W) RMS N-Series Class-D 5-Channel Car Audio Amplifier

• 4 ohm: 80 watts x 4 channel + 310 watts x 1 channel
• 2 ohm: 120 watts x 4 channel + 500 watts x 1 channel
• Total power output: 980 watts watts
• Includes Bass Remote
• CEA-2006 Compliant

6

• 4 ohm: 80 watts x 4 channel + 310 watts x 1 channel
• 2 ohm: 120 watts x 4 channel + 500 watts x 1 channel
• Total power output: 980 watts watts
• Includes Bass Remote
• CEA-2006 Compliant

Memphis MJP1000.1

1000W RMS Class D MOJO Pro Series Monoblock Car Amplifier with Bass Remote

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Memphis MJP1000.1

1000W RMS Class D MOJO Pro Series Monoblock Car Amplifier with Bass Remote

• 425 watts x 1 channel @ 4 ohm
• 725 watts x 1 channel @ 2 ohm
• 1000 watts x 1 channel @ 1 ohm
• Total RMS Power: 1000 watts
• Class D 2 ohm Stable Monoblock Amplifier

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• 425 watts x 1 channel @ 4 ohm
• 725 watts x 1 channel @ 2 ohm
• 1000 watts x 1 channel @ 1 ohm
• Total RMS Power: 1000 watts
• Class D 2 ohm Stable Monoblock Amplifier

Taramps 3000 TRIO PLAYER - 4 OHM

3000W RMS Trio Player Series 4-Ohm Stable Class-D Monoblock Amplifier with Bluetooth

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Taramps 3000 TRIO PLAYER - 4 OHM

3000W RMS Trio Player Series 4-Ohm Stable Class-D Monoblock Amplifier with Bluetooth

• 1920 watts x 1 channel @ 8 ohm
• 3000 watts x 1 channel @ 4 ohm
• 150 watts x 1 channel @ 8 ohm (via High)
• 250 watts x 1 channel @ 4 ohm (via High)
• Total RMS Power: 3000 watts
• Class D 4 ohm Stable Monoblock Amplifier

• 1920 watts x 1 channel @ 8 ohm
• 3000 watts x 1 channel @ 4 ohm
• 150 watts x 1 channel @ 8 ohm (via High)
• 250 watts x 1 channel @ 4 ohm (via High)
• Total RMS Power: 3000 watts
• Class D 4 ohm Stable Monoblock Amplifier

RE Audio SA 1500.1

1800W Peak (900W RMS) SA Series Class-D Monoblock 1-Ohm Stable Amplifier

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RE Audio SA 1500.1

1800W Peak (900W RMS) SA Series Class-D Monoblock 1-Ohm Stable Amplifier

• RMS Power: 280W x 1 @ 4 ohm, 500W x 1 @ 2 ohm, 900W x 1 @ 1 ohm
• Total Peak Power: 1800W
• Variable Low Pass Filter
• Dimensions: 4.72" W x 10.24" L x 1.57" H

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• RMS Power: 280W x 1 @ 4 ohm, 500W x 1 @ 2 ohm, 900W x 1 @ 1 ohm
• Total Peak Power: 1800W
• Variable Low Pass Filter
• Dimensions: 4.72" W x 10.24" L x 1.57" H

Massive Audio E3 (Open Box, Great)

1400W RMS Class-D Monoblock Nano Edge Series Mini Amplifier

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Massive Audio E3 (Open Box, Great)

1400W RMS Class-D Monoblock Nano Edge Series Mini Amplifier

• 700 Watts RMS x 1 @ 2 ohm
• 1400 Watts RMS x 1 @ 1 ohm
• Total Peak Power: 2800 Watts
• CTA-2006 Compliant
• Variable Bass Boost: 0 to +12 dB bass boost variable from 30-120Hz
• Variable low-pass filter: 60 - 220Hz
• Dimensions: 11.1"W x 5.9"L x 2.1"H

• 700 Watts RMS x 1 @ 2 ohm
• 1400 Watts RMS x 1 @ 1 ohm
• Total Peak Power: 2800 Watts
• CTA-2006 Compliant
• Variable Bass Boost: 0 to +12 dB bass boost variable from 30-120Hz
• Variable low-pass filter: 60 - 220Hz
• Dimensions: 11.1"W x 5.9"L x 2.1"H

NVX NDA103

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

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NVX NDA103

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

• 390 watts x 1 channel @ 4 ohm
• 660 watts x 1 channel @ 2 ohm
• 1000 watts x 1 channel @ 1 ohm
• Total RMS Power: 1000 watts
• CEA-2006 Compliant
• 0 to +12 dB bass boost

6

• 390 watts x 1 channel @ 4 ohm
• 660 watts x 1 channel @ 2 ohm
• 1000 watts x 1 channel @ 1 ohm
• Total RMS Power: 1000 watts
• CEA-2006 Compliant
• 0 to +12 dB bass boost

Power Acoustik MOFO4-2KD

2000W Peak (600W RMS) Class D MOFO Series 4-Channel Tower Chassis Car Amplifier

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Power Acoustik MOFO4-2KD

2000W Peak (600W RMS) Class D MOFO Series 4-Channel Tower Chassis Car Amplifier

• 100 watts x 4 channel @ 4 ohm
• 150 watts x 4 channel @ 2 ohm
• Bridged: 300 watts x 2 channel @ 4 ohm
• Total RMS Power: 600 watts
• Class D 2 ohm Stable 4-Channel-Channel Amplifier

• 100 watts x 4 channel @ 4 ohm
• 150 watts x 4 channel @ 2 ohm
• Bridged: 300 watts x 2 channel @ 4 ohm
• Total RMS Power: 600 watts
• Class D 2 ohm Stable 4-Channel-Channel Amplifier

Planet Audio TR3000.1D

3000W Peak (2250W RMS) Torque Series Class-D Monoblock Amplifier with Bass Remote

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Planet Audio TR3000.1D

3000W Peak (2250W RMS) Torque Series Class-D Monoblock Amplifier with Bass Remote

• 563 watts x 1 channel @ 4 ohm
• 1125 watts x 1 channel @ 2 ohm
• 2250 watts x 1 channel @ 1 ohm
• Strapped Bridged Power: 4500 watts X 1 channel @ 2 ohm
• Total RMS Power: 2250 watts
• Class D 1 ohm Stable Monoblock Amplifier

1

• 563 watts x 1 channel @ 4 ohm
• 1125 watts x 1 channel @ 2 ohm
• 2250 watts x 1 channel @ 1 ohm
• Strapped Bridged Power: 4500 watts X 1 channel @ 2 ohm
• Total RMS Power: 2250 watts
• Class D 1 ohm Stable Monoblock Amplifier

Hifonics BG-1000.4

1000W BRUTUS Gamma Series 4-Channel Car Audio Amplifier

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Hifonics BG-1000.4

1000W BRUTUS Gamma Series 4-Channel Car Audio Amplifier

• 1000 Watt Amplifier
• 4-Channel Class D
• CEA-2006 Compliant
• Ultra-Fi™ MOSFET Technology

• 1000 Watt Amplifier
• 4-Channel Class D
• CEA-2006 Compliant
• Ultra-Fi™ MOSFET Technology

Boss Elite BE4000D

4000W Peak (3000W RMS) Elite Series Class-D Monoblock Amplifier with Bass Remote

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Boss Elite BE4000D

4000W Peak (3000W RMS) Elite Series Class-D Monoblock Amplifier with Bass Remote

• 750 watts x 1 channel @ 4 ohm
• 1500 watts x 1 channel @ 2 ohm
• 3000 watts x 1 channel @ 1 ohm
• Total RMS Power: 3000 watts
• Class D 1 ohm Stable Monoblock Amplifier

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• 750 watts x 1 channel @ 4 ohm
• 1500 watts x 1 channel @ 2 ohm
• 3000 watts x 1 channel @ 1 ohm
• Total RMS Power: 3000 watts
• Class D 1 ohm Stable Monoblock Amplifier

Planet Audio BB4.1200

1200W Max (450W RMS) 2-ohm Stable 4-Channel Class-D Amplifier w/ Remote Level Control

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Planet Audio BB4.1200

1200W Max (450W RMS) 2-ohm Stable 4-Channel Class-D Amplifier w/ Remote Level Control

• 113 Watts RMS x 4 @ 4 ohm
• 225 Watts RMS x 4 @ 2 ohm
• Total Peak Power: 1200 Watts
• CEA-2006 Compliant
• 0 to 18dB Bass Boost
• Black Anodized Heat Sink

1

• 113 Watts RMS x 4 @ 4 ohm
• 225 Watts RMS x 4 @ 2 ohm
• Total Peak Power: 1200 Watts
• CEA-2006 Compliant
• 0 to 18dB Bass Boost
• Black Anodized Heat Sink

Atrend 300.1SBA

336W RMS Class D Compact Amplifier

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Atrend 300.1SBA

336W RMS Class D Compact Amplifier

• RMS Power: 336 Watts
• Selectable Amp Turn on
• Adjustable Level Control
• Quick Connect Power/Remote/Ground Plug

• RMS Power: 336 Watts
• Selectable Amp Turn on
• Adjustable Level Control
• Quick Connect Power/Remote/Ground Plug

Crunch PZ2-2030.5D

2000W Peak (1300W RMS) Class D PowerZone 2 Series 5 Channel Car Amplifier with Bass Remote

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Crunch PZ2-2030.5D

2000W Peak (1300W RMS) Class D PowerZone 2 Series 5 Channel Car Amplifier with Bass Remote

• 100 watts x 4 channel + 250 watts x 1 channel @ 4 ohm
• 200 watts x 4 channel + 500 watts x 1 channel @ 2 ohm
• Bridged: @ 4 ohm + 500 watts x 1 channel @ 2 ohm
• Total RMS Power: 1300 watts
• Class D 1 ohm Stable 5-Channel Amplifier

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• 100 watts x 4 channel + 250 watts x 1 channel @ 4 ohm
• 200 watts x 4 channel + 500 watts x 1 channel @ 2 ohm
• Bridged: @ 4 ohm + 500 watts x 1 channel @ 2 ohm
• Total RMS Power: 1300 watts
• Class D 1 ohm Stable 5-Channel Amplifier

Memphis SE1000.1V2

250W RMS Class D Street Edge Series Monoblock Car Amplifier with Bass Remote

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Memphis SE1000.1V2

250W RMS Class D Street Edge Series Monoblock Car Amplifier with Bass Remote

• 160 watts x 1 channel @ 4 ohm
• 250 watts x 1 channel @ 2 ohm
• Total RMS Power: 250 watts
• Class D 2 ohm Stable Monoblock Amplifier

• 160 watts x 1 channel @ 4 ohm
• 250 watts x 1 channel @ 2 ohm
• Total RMS Power: 250 watts
• Class D 2 ohm Stable Monoblock Amplifier

Massive Audio D8000

8000W Max Monoblock Amplifier

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Massive Audio D8000

8000W Max Monoblock Amplifier

• RMS: 950W x 1 @ 4 ohm, 1500W x 1 @ 2 ohm, 2000W x 1 @ 1 ohm, 4000W x 1 @ 0.5 ohm
• Total Peak Power: 8000W
• CEA-2006 Compliant
• Bass Boost: 0-12 dB
• Class D Circuitry
• Dimensions: 19-15/16"L x 6-1/2"W x 2-1/8"H

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• RMS: 950W x 1 @ 4 ohm, 1500W x 1 @ 2 ohm, 2000W x 1 @ 1 ohm, 4000W x 1 @ 0.5 ohm
• Total Peak Power: 8000W
• CEA-2006 Compliant
• Bass Boost: 0-12 dB
• Class D Circuitry
• Dimensions: 19-15/16"L x 6-1/2"W x 2-1/8"H

Hifonics Brutus Class D 1600W RMS 1 Ohm Mono Car Subwoofer Amplifier (4 Pack)

Hifonics Brutus Class D 1600W RMS 1 Ohm Mono Car Subwoofer Amplifier (4 Pack)

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Hifonics Brutus Class D 1600W RMS 1 Ohm Mono Car Subwoofer Amplifier (4 Pack)

Hifonics Brutus Class D 1600W RMS 1 Ohm Mono Car Subwoofer Amplifier (4 Pack)

• 450W Max x 1 @ 4 ohm
• 800W Max x 1 @ 2 ohm
• 1600W Max x 1 @ 1 ohm
• Total Peak Power: 1600 Watts
• Low Pass and Subsonic Filters
• 0-10 Bass Boost
• Aluminum Heatsink
• 9" W x 15.6" L x 2.5" H

• 450W Max x 1 @ 4 ohm
• 800W Max x 1 @ 2 ohm
• 1600W Max x 1 @ 1 ohm
• Total Peak Power: 1600 Watts
• Low Pass and Subsonic Filters
• 0-10 Bass Boost
• Aluminum Heatsink
• 9" W x 15.6" L x 2.5" H

Massive Audio PX4S

960W RMS Class D Primo Series 4 Channel Car Amplifier

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Massive Audio PX4S

960W RMS Class D Primo Series 4 Channel Car Amplifier

• 150 watts x 4 channel @ 4 ohm
• 240 watts x 4 channel @ 2 ohm
• Bridged: 480 watts x 2 channel @ 4 ohm
• Total RMS Power: 960 watts
• Class D 2 ohm Stable 4-Channel Amplifier

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• 150 watts x 4 channel @ 4 ohm
• 240 watts x 4 channel @ 2 ohm
• Bridged: 480 watts x 2 channel @ 4 ohm
• Total RMS Power: 960 watts
• Class D 2 ohm Stable 4-Channel Amplifier

SoundStream TXP1.12000D

12000W Peak (4300W RMS) Class D Tarantula Xtreme Power Series Monoblock Car Amplifier

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SoundStream TXP1.12000D

12000W Peak (4300W RMS) Class D Tarantula Xtreme Power Series Monoblock Car Amplifier

• 1300 watts x 1 channel @ 4 ohm
• 2600 watts x 1 channel @ 2 ohm
• 4300 watts x 1 channel @ 1 ohm
• Total RMS Power: 4300 watts
• Class D 1 ohm Stable Monoblock Amplifier

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• 1300 watts x 1 channel @ 4 ohm
• 2600 watts x 1 channel @ 2 ohm
• 4300 watts x 1 channel @ 1 ohm
• Total RMS Power: 4300 watts
• Class D 1 ohm Stable Monoblock Amplifier

Power Acoustik SB2.2000D

2000W Peak (660W RMS) Class D Saber Series 2-Channel Amplifier

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Power Acoustik SB2.2000D

2000W Peak (660W RMS) Class D Saber Series 2-Channel Amplifier

• 220 watts x 2 channel @ 4 ohm
• 330 watts x 2 channel @ 2 ohm
• Bridged: 660 watts x 1 channel @ 4 ohm
• Total RMS Power: 660 watts
• Class D 2 ohm Stable 2-Channel Amplifier

• 220 watts x 2 channel @ 4 ohm
• 330 watts x 2 channel @ 2 ohm
• Bridged: 660 watts x 1 channel @ 4 ohm
• Total RMS Power: 660 watts
• Class D 2 ohm Stable 2-Channel Amplifier

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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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