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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)
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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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Power Acoustik VA1-4000D

4000W Peak (1000W RMS) Class D Vertigo Series Monoblock Car Amplifier with Bass Remote

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Power Acoustik VA1-4000D

4000W Peak (1000W RMS) Class D Vertigo Series Monoblock Car Amplifier with Bass Remote

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

4

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

JL Audio XD700/5v2

700W RMS XDv2 Series Class-D 5-Channel Amplifier

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JL Audio XD700/5v2

700W RMS XDv2 Series Class-D 5-Channel Amplifier

• 75 watts x 4 channel + 180 watts x 1 channel @ 4 ohm
• 100 watts x 4 channel + 300 watts x 1 channel @ 2 ohm
• Bridged: 200 watts x 2 channel @ 4 ohm + 300 watts x 1 channel @ 2 ohm
• Total RMS Power: 700 watts
• Class D 2 ohm Stable 5-Channel Amplifier

10

• 75 watts x 4 channel + 180 watts x 1 channel @ 4 ohm
• 100 watts x 4 channel + 300 watts x 1 channel @ 2 ohm
• Bridged: 200 watts x 2 channel @ 4 ohm + 300 watts x 1 channel @ 2 ohm
• Total RMS Power: 700 watts
• Class D 2 ohm Stable 5-Channel Amplifier

Kicker KX1600.1 (40KX1600.1) - Open Box, Acceptable but Missing part(s) (Used)

1600W RMS KX Series Monoblock Class D Car Power Amplifier - Open Box, Acceptable but Missing part(s) (Used)

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Kicker KX1600.1 (40KX1600.1) - Open Box, Acceptable but Missing part(s) (Used)

1600W RMS KX Series Monoblock Class D Car Power Amplifier - Open Box, Acceptable but Missing part(s) (Used)

• RMS: 800W x 1 @ 4 ohm, 1600W x 1 @ 2 ohm
• Total Peak Power: 3200W
• CEA-2006 Compliant
• Kick EQ+ Bass Boost: 0-18 dB from 20-80 Hz
• Magnetic Panel Covers Controls
• Dimensions: 8-5/16"W x 11-3/16"L x 2-1/8"H

• RMS: 800W x 1 @ 4 ohm, 1600W x 1 @ 2 ohm
• Total Peak Power: 3200W
• CEA-2006 Compliant
• Kick EQ+ Bass Boost: 0-18 dB from 20-80 Hz
• Magnetic Panel Covers Controls
• Dimensions: 8-5/16"W x 11-3/16"L x 2-1/8"H

Crunch PZ2-1530.2D

1500W RMS Class D PowerZone 2 Series 2 Channel Car Amplifier

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Crunch PZ2-1530.2D

1500W RMS Class D PowerZone 2 Series 2 Channel Car Amplifier

• 375 watts x 2 channel @ 4 ohm
• 750 watts x 2 channel @ 2 ohm
• Bridged: 1500 watts x 1 channel @ 4 ohm
• Total RMS Power: 1500 watts
• Class D 2 ohm Stable 2-Channel Amplifier

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• 375 watts x 2 channel @ 4 ohm
• 750 watts x 2 channel @ 2 ohm
• Bridged: 1500 watts x 1 channel @ 4 ohm
• Total RMS Power: 1500 watts
• Class D 2 ohm Stable 2-Channel Amplifier

Soundstream ST2.1000D

1000W Max (500W RMS) Stealth Series 2 ohm Stable 2-Channel Class-D Amplifier

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Soundstream ST2.1000D

1000W Max (500W RMS) Stealth Series 2 ohm Stable 2-Channel Class-D Amplifier

• 140 Watts RMS x 2 @ 4 ohm
• 250 Watts RMS x 2 @ 2 ohm
• 500 Watts RMS x 1 @ 4 ohm, Bridged
• Total Peak Power: 1000 Watts
• Variable Crossovers
• Small Footprint for Easy Installation
• Aluminum Heatsink
• Dimensions:3 " W x 6.5" L x 1.5" H

1

• 140 Watts RMS x 2 @ 4 ohm
• 250 Watts RMS x 2 @ 2 ohm
• 500 Watts RMS x 1 @ 4 ohm, Bridged
• Total Peak Power: 1000 Watts
• Variable Crossovers
• Small Footprint for Easy Installation
• Aluminum Heatsink
• Dimensions:3 " W x 6.5" L x 1.5" H

Rockford Fosgate Power T40001bd

4000 watts, Class BD MonoBlock Power Series Amplifier

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Rockford Fosgate Power T40001bd

4000 watts, Class BD MonoBlock Power Series Amplifier

4000W RMS Class BD Amplifier
• 4,000W RMS @ 1 Ohm
• 2,000W RMS @ 2 Ohm
• Wired Bass Remote Included (35 - 70Hz, 0 - 18dB)
• 1/0 AWG power and ground connections with internal ANL fusing
• Preamp outputs • Low-Pass and Infrasonic filters
• 0 - 180 Degree Phase Control

8

4000W RMS Class BD Amplifier
• 4,000W RMS @ 1 Ohm
• 2,000W RMS @ 2 Ohm
• Wired Bass Remote Included (35 - 70Hz, 0 - 18dB)
• 1/0 AWG power and ground connections with internal ANL fusing
• Preamp outputs • Low-Pass and Infrasonic filters
• 0 - 180 Degree Phase Control

Soundstream TXP1.6000D

6000W Peak (2300W RMS) Class D Tarantula Xtreme Power Series Monoblock Car Amplifier (with Bass Remote)

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Soundstream TXP1.6000D

6000W Peak (2300W RMS) Class D Tarantula Xtreme Power Series Monoblock Car Amplifier (with Bass Remote)

• 700 watts x 1 channel @ 4 ohm
• 1200 watts x 1 channel @ 2 ohm
• 2300 watts x 1 channel @ 1 ohm
• Total RMS Power: 2350 watts
• Class D 1 ohm Stable Monoblock Amplifier

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• 700 watts x 1 channel @ 4 ohm
• 1200 watts x 1 channel @ 2 ohm
• 2300 watts x 1 channel @ 1 ohm
• Total RMS Power: 2350 watts
• Class D 1 ohm Stable Monoblock Amplifier

Memphis VIV750.6V2

750W RMS VIV Series Class-D 6-Channel Amplifier

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Memphis VIV750.6V2

750W RMS VIV Series Class-D 6-Channel Amplifier

• 70 watts x 6 channel @ 4 ohm
• 125 watts x 6 channel @ 2 ohm
• Bridged: 250 watts x 3 channel @ 4 ohm
• Total RMS Power: 750 watts
• Class D 2 ohm Stable 6-Channel Amplifier

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• 70 watts x 6 channel @ 4 ohm
• 125 watts x 6 channel @ 2 ohm
• Bridged: 250 watts x 3 channel @ 4 ohm
• Total RMS Power: 750 watts
• Class D 2 ohm Stable 6-Channel Amplifier

Hifonics Zeus 2400 Watt Max Class D Monoblock Car Audio Amplifier (3 Pack)

Hifonics Zeus 2400 Watt Max Class D Monoblock Car Audio Amplifier (3 Pack)

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Hifonics Zeus 2400 Watt Max Class D Monoblock Car Audio Amplifier (3 Pack)

Hifonics Zeus 2400 Watt Max Class D Monoblock Car Audio Amplifier (3 Pack)

• 650 Watts Peak x 1 @ 4 ohm
• 1200 Watts Peak x 1 @ 2 ohm
• 2400 Watts Peak x 1 @ 1 ohm
• Total Peak Power: 2400 Watts
• Low-Pass and Sub-Sonic Filters
• Variable Bass Boost
• Aluminum Heatsink
• 17.3" W x 10" L x 2.4" H

8

• 650 Watts Peak x 1 @ 4 ohm
• 1200 Watts Peak x 1 @ 2 ohm
• 2400 Watts Peak x 1 @ 1 ohm
• Total Peak Power: 2400 Watts
• Low-Pass and Sub-Sonic Filters
• Variable Bass Boost
• Aluminum Heatsink
• 17.3" W x 10" L x 2.4" H

MB Quart FA1-2000.1

2000W Class D FORMULA Series Monoblock Class-D Car Amplifier

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MB Quart FA1-2000.1

2000W Class D FORMULA Series Monoblock Class-D Car Amplifier

• 500 watts x 1 channel @ 4 ohm
• 1000 watts x 1 channel @ 2 ohm
• 2000 watts x 1 channel @ 1 ohm
• Total RMS Power: 2000 watts
• Class D 1 ohm Stable Monoblock Amplifier

• 500 watts x 1 channel @ 4 ohm
• 1000 watts x 1 channel @ 2 ohm
• 2000 watts x 1 channel @ 1 ohm
• Total RMS Power: 2000 watts
• Class D 1 ohm Stable Monoblock Amplifier

Cerwin-Vega B2

500W 2-Channel Bomber Series Class D Digital Amplifier

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Cerwin-Vega B2

500W 2-Channel Bomber Series Class D Digital Amplifier

• RMS Power: 150W x 2 @ 4 ohm, 250W x 2 @ 2 ohm
• Auxiliary for use when RCA connections are not available
• Ultra Compact High Density Aluminium Alloy Chassis
• Direct FET Power Mosfet Output Stage
• Dimensions: 1.4"W x 4.02"L x 6.61"H

5

• RMS Power: 150W x 2 @ 4 ohm, 250W x 2 @ 2 ohm
• Auxiliary for use when RCA connections are not available
• Ultra Compact High Density Aluminium Alloy Chassis
• Direct FET Power Mosfet Output Stage
• Dimensions: 1.4"W x 4.02"L x 6.61"H

Cerwin-Vega XED4004

400 Watts Max XED Series Class D 4-Channel Car Subwoofer Amplifier

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Cerwin-Vega XED4004

400 Watts Max XED Series Class D 4-Channel Car Subwoofer Amplifier

• 60 Watts RMS x 4 @ 4 ohm
• 90 Watts RMS x 4 @ 2 ohm
• Total Peak Power: 400 Watts
• CEA-2006 Compliant
• Proprietary Vega Bass Boost EQ Up To 12dBn
• Dimensions: 6.3” x 4.7” x 1.8”

• 60 Watts RMS x 4 @ 4 ohm
• 90 Watts RMS x 4 @ 2 ohm
• Total Peak Power: 400 Watts
• CEA-2006 Compliant
• Proprietary Vega Bass Boost EQ Up To 12dBn
• Dimensions: 6.3” x 4.7” x 1.8”

NVX XPLD3K OPEN BOX COMPLETE

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

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NVX XPLD3K OPEN BOX COMPLETE

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

• Item Condition: Open Box Complete
• 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

• Item Condition: Open Box Complete
• 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

Memphis MJP1500.1

1500W RMS Class D MOJO Pro Series Monoblock Car Amplifier with Bass Remote

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Memphis MJP1500.1

1500W RMS Class D MOJO Pro Series Monoblock Car Amplifier with Bass Remote

• 675 watts x 1 channel @ 4 ohm
• 1050 watts x 1 channel @ 2 ohm
• Total RMS Power: 1500 watts
• Class D 2 ohm Stable Monoblock Amplifier

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• 675 watts x 1 channel @ 4 ohm
• 1050 watts x 1 channel @ 2 ohm
• Total RMS Power: 1500 watts
• Class D 2 ohm Stable Monoblock Amplifier

Precision Power (PPI) i1000.4

1000W RMS Class D iON Series 4-Channel Car Amplifier

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Precision Power (PPI) i1000.4

1000W RMS Class D iON Series 4-Channel Car Amplifier

• 140 watts x 4 channel @ 4 ohm
• 250 watts x 4 channel @ 2 ohm
• Bridged: 500 watts x 2 channel @ 4 ohm
• Total RMS Power: 1000 watts
• Class D 2 ohm Stable 4-Channel Amplifier

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• 140 watts x 4 channel @ 4 ohm
• 250 watts x 4 channel @ 2 ohm
• Bridged: 500 watts x 2 channel @ 4 ohm
• Total RMS Power: 1000 watts
• Class D 2 ohm Stable 4-Channel Amplifier

Hertz HCP 1DK

2480W Peak (1240W RMS) Class D Hertz Compact Power (HCP) Series Class D Monoblock Amplifier

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Hertz HCP 1DK

2480W Peak (1240W RMS) Class D Hertz Compact Power (HCP) Series Class D Monoblock Amplifier

• 740 watts x 1 channel @ 4 ohm
• 1240 watts x 1 channel @ 2 ohm
• Total RMS Power: 1240 watts
• Class D 2 ohm Stable Monoblock Amplifier

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• 740 watts x 1 channel @ 4 ohm
• 1240 watts x 1 channel @ 2 ohm
• Total RMS Power: 1240 watts
• Class D 2 ohm Stable Monoblock Amplifier

Power Acoustik VA2-1400D

1400W Peak (400W RMS) Class D Vertigo Series 2-Channel Car Amplifier

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Power Acoustik VA2-1400D

1400W Peak (400W RMS) Class D Vertigo Series 2-Channel Car Amplifier

• 120 watts x 2 channel @ 4 ohm
• 200 watts x 2 channel @ 2 ohm
• Bridged: @ 4 ohm
• Total RMS Power: 400 watts
• Class D 2 ohm Stable 2-Channel-Channel Amplifier

1

• 120 watts x 2 channel @ 4 ohm
• 200 watts x 2 channel @ 2 ohm
• Bridged: @ 4 ohm
• Total RMS Power: 400 watts
• Class D 2 ohm Stable 2-Channel-Channel Amplifier

Deaf Bonce AAK-8000.1D

8000W RMS Class D Apocalypse Series Monoblock Car Amplifier

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Deaf Bonce AAK-8000.1D

8000W RMS Class D Apocalypse Series Monoblock Car Amplifier

• 2900 watts x 1 channel @ 4 ohm
• 5100 watts x 1 channel @ 2 ohm
• 8000 watts x 1 channel @ 1 ohm
• Total RMS Power: 8000 watts
• Class D 1 ohm Stable Monoblock Amplifier

• 2900 watts x 1 channel @ 4 ohm
• 5100 watts x 1 channel @ 2 ohm
• 8000 watts x 1 channel @ 1 ohm
• Total RMS Power: 8000 watts
• Class D 1 ohm Stable Monoblock Amplifier

Kicker 08ZX1500.1 Open Box

(Open Box) 1500W RMS, Class D Monoblock ZX Series Amplifier (ZX1500.1, 08ZX15001, ZX15001)

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Kicker 08ZX1500.1 Open Box

(Open Box) 1500W RMS, Class D Monoblock ZX Series Amplifier (ZX1500.1, 08ZX15001, ZX15001)

ZX Series Class D Monoblock Car Amplifier • 750W x 1 chan. @ 4 ohm • 1500W x 1 chan. @ 2 ohm • 1500W x 1 chan. Max • Balanced differential inputs make KICKER ZX Amplifiers compatible with any factory radios

ZX Series Class D Monoblock Car Amplifier • 750W x 1 chan. @ 4 ohm • 1500W x 1 chan. @ 2 ohm • 1500W x 1 chan. Max • Balanced differential inputs make KICKER ZX Amplifiers compatible with any factory radios

Soundstream PN4.5000DX

5000W Peak (1800W RMS) Class D Picasso Nano Series 4-Channel Car Amplifier

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Soundstream PN4.5000DX

5000W Peak (1800W RMS) Class D Picasso Nano Series 4-Channel Car Amplifier

• 250 watts x 4 channel @ 4 ohm
• 450 watts x 4 channel @ 2 ohm
• Bridged: 900 watts x 2 channel @ 4 ohm
• Total RMS Power: 1800 watts
• Class D 2 ohm Stable 4-Channel Amplifier

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• 250 watts x 4 channel @ 4 ohm
• 450 watts x 4 channel @ 2 ohm
• Bridged: 900 watts x 2 channel @ 4 ohm
• Total RMS Power: 1800 watts
• Class D 2 ohm Stable 4-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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