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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 (49)
Zeus Series (38)
KX Series (15)
MD Series (15)
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X Series (15)
CX Series (14)
Picasso-Nano 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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DS18 ZXI.5

5000W Peak (1000W RMS) Class D ZXI Series 5 Channel Car Amplifier with Bass Remote

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DS18 ZXI.5

5000W Peak (1000W RMS) Class D ZXI Series 5 Channel Car Amplifier with Bass Remote

• 125 watts x 4 channel + 420 watts @ 4 ohm
• 170 watts x 4 channel + 705 watts @ 2 ohm
• Bridged: 340 watts x 2 channel @ 4 ohm + 705 watts @ 2 ohm
• Total RMS Power: 1000 watts
• Class D 2 ohm Stable 5-Channel-Channel Amplifier

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• 125 watts x 4 channel + 420 watts @ 4 ohm
• 170 watts x 4 channel + 705 watts @ 2 ohm
• Bridged: 340 watts x 2 channel @ 4 ohm + 705 watts @ 2 ohm
• Total RMS Power: 1000 watts
• Class D 2 ohm Stable 5-Channel-Channel Amplifier

Massive Audio PX6

1080W RMS Class D PRIMO Series 6 Channel Car Amplifier

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Massive Audio PX6

1080W RMS Class D PRIMO Series 6 Channel Car Amplifier

• 130 watts x 6 channel @ 4 ohm
• 180 watts x 6 channel @ 2 ohm
• Bridged: 350 watts x 3 channel @ 4 ohm
• Total RMS Power: 1080 watts
• Class D 2 ohm Stable 6-Channel Amplifier

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• 130 watts x 6 channel @ 4 ohm
• 180 watts x 6 channel @ 2 ohm
• Bridged: 350 watts x 3 channel @ 4 ohm
• Total RMS Power: 1080 watts
• Class D 2 ohm Stable 6-Channel Amplifier

Boss PD4000

4000W Phantom Series Class D Monoblock Amplifier

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Boss PD4000

4000W Phantom Series Class D Monoblock Amplifier

• RMS: 1000W x 1 @ 4 ohm
• Total Peak Power: 4000W
• Gold-plated RCA low level and high level inputs
• 3-way protection circuitry (thermal, overload, and speaker short protection)
• Wired remote bass level control included
• 10.31" W x 15.00" L x 2.25" H

2

• RMS: 1000W x 1 @ 4 ohm
• Total Peak Power: 4000W
• Gold-plated RCA low level and high level inputs
• 3-way protection circuitry (thermal, overload, and speaker short protection)
• Wired remote bass level control included
• 10.31" W x 15.00" L x 2.25" H

Memphis PRXA600.1

600W RMS PRX Series Class-D Monoblock Amplifier with Bass Remote

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Memphis PRXA600.1

600W RMS PRX Series Class-D Monoblock Amplifier with Bass Remote

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

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

Hifonics Zeus 3200-Watt Max Class D Monoblock Car Audio Amplifier (3 Pack)

Hifonics Zeus 3200-Watt Max Class D Monoblock Car Audio Amplifier (3 Pack)

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Hifonics Zeus 3200-Watt Max Class D Monoblock Car Audio Amplifier (3 Pack)

Hifonics Zeus 3200-Watt Max Class D Monoblock Car Audio Amplifier (3 Pack)

• 800 Watts Peak x 1 @ 4 ohm
• 1600 Watts Peak x 1 @ 2 ohm
• 3200 Watts Peak x 1 @ 1 ohm
• Total Peak Power: 3200 Watts
• Low-Pass and Sub-Sonic Filters
• Variable Bass Boost
• Aluminum Heatsink
• 20" W x 10" L x 2.4" H

1

• 800 Watts Peak x 1 @ 4 ohm
• 1600 Watts Peak x 1 @ 2 ohm
• 3200 Watts Peak x 1 @ 1 ohm
• Total Peak Power: 3200 Watts
• Low-Pass and Sub-Sonic Filters
• Variable Bass Boost
• Aluminum Heatsink
• 20" W x 10" L x 2.4" H

Infinity Primus 6004A

560W Peak (280W RMS) Primus Series Class-D 4-Channel Amplifier

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Infinity Primus 6004A

560W Peak (280W RMS) Primus Series Class-D 4-Channel Amplifier

• 60 watts x 4 channel @ 4 ohm
• 70 watts x 4 channel @ 2 ohm
• Bridged: 140 watts x 2 channel @ 4 ohm
• Total RMS Power: 280 watts
• Class D 2 ohm Stable 4-Channel Amplifier

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• 60 watts x 4 channel @ 4 ohm
• 70 watts x 4 channel @ 2 ohm
• Bridged: 140 watts x 2 channel @ 4 ohm
• Total RMS Power: 280 watts
• Class D 2 ohm Stable 4-Channel Amplifier

Limited time!

Memphis PRX1500.1V2

1500W RMS Class D Power Reference Series Monoblock Car Amplifier with Bass Remote

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Memphis PRX1500.1V2

1500W RMS Class D Power Reference Series Monoblock Car Amplifier with Bass Remote

• 500 watts x 1 channel @ 4 ohm
• 1000 watts x 1 channel @ 2 ohm
• Total RMS Power: 1500 watts
• Class D 1 ohm Stable Monoblock Amplifier

• 500 watts x 1 channel @ 4 ohm
• 1000 watts x 1 channel @ 2 ohm
• Total RMS Power: 1500 watts
• Class D 1 ohm Stable Monoblock Amplifier

Deaf Bonce AAK 1600.2

1600W RMS Apocalypse Series Class-D 2-Channel Amplifier

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Deaf Bonce AAK 1600.2

1600W RMS Apocalypse Series Class-D 2-Channel Amplifier

• 600 watts x 2 channel @ 4 ohm
• 1100 watts x 2 channel @ 2 ohm
• Bridged: 2100 watts x 1 channel @ 4 ohm
• Total RMS Power: 3100 watts
• Class D 1 ohm Stable 2-Channel-Channel Amplifier

• 600 watts x 2 channel @ 4 ohm
• 1100 watts x 2 channel @ 2 ohm
• Bridged: 2100 watts x 1 channel @ 4 ohm
• Total RMS Power: 3100 watts
• Class D 1 ohm Stable 2-Channel-Channel Amplifier

Limited time!

Memphis SE1200.4V2

1200W Peak (340W RMS) Class D Street Edge Series 4 Channel Car Amplifier

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Memphis SE1200.4V2

1200W Peak (340W RMS) Class D Street Edge Series 4 Channel Car Amplifier

• 60 watts x 4 channel @ 4 ohm
• 85 watts x 4 channel @ 2 ohm
• Bridged: 170 watts x 2 channel @ 4 ohm
• Total RMS Power: 340 watts
• Class D 2 ohm Stable 4-Channel Amplifier

2

• 60 watts x 4 channel @ 4 ohm
• 85 watts x 4 channel @ 2 ohm
• Bridged: 170 watts x 2 channel @ 4 ohm
• Total RMS Power: 340 watts
• Class D 2 ohm Stable 4-Channel Amplifier

Taramps DS 800x2

800W RMS Class D DS Series 2 Channel Car Amplifier

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Taramps DS 800x2

800W RMS Class D DS Series 2 Channel Car Amplifier

• 250 watts x 2 channel @ 4 ohm
• 400 watts x 2 channel @ 2 ohm
• Bridged: 800 watts x 1 channel @ 4 ohm
• Total RMS Power: 800 watts
• Class D 2 ohm Stable 2-Channel Amplifier

• 250 watts x 2 channel @ 4 ohm
• 400 watts x 2 channel @ 2 ohm
• Bridged: 800 watts x 1 channel @ 4 ohm
• Total RMS Power: 800 watts
• Class D 2 ohm Stable 2-Channel Amplifier

MTX JH10001

1000W JackHammer Series Class D 1-ohm Stable Monoblock Amplifier

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MTX JH10001

1000W JackHammer Series Class D 1-ohm Stable Monoblock Amplifier

• 450 watts x 1 channel @ 4 ohm
• 775 watts x 1 channel @ 2 ohm
• 1100 watts x 1 channel @ 1 ohm
• Total RMS Power: 1100 watts
• Class D 1 ohm Stable Monoblock Amplifier

• 450 watts x 1 channel @ 4 ohm
• 775 watts x 1 channel @ 2 ohm
• 1100 watts x 1 channel @ 1 ohm
• Total RMS Power: 1100 watts
• Class D 1 ohm Stable Monoblock Amplifier

Hertz HCP 4DK

2000W Peak (880W RMS) Class D Hertz Compact Power (HCP) Series 4-Channel Full Range Car Amplifier

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Hertz HCP 4DK

2000W Peak (880W RMS) Class D Hertz Compact Power (HCP) Series 4-Channel Full Range Car Amplifier

• 4 Channel: 120 watts x 4 channel @ 4 ohm
• 4 Channel: 220 watts x 4 channel @ 2 ohm
• 3 Channel: 120 watts x 2 channel @ 4 ohm + 440 watts x 1 channel @ 4 ohm
• 3 Channel: 220 watts x 2 channel @ 2 ohm + 440 watts x 1 channel @ 4 ohm
• 2 Channel: 440 watts x 2 channel @ 4-ohm
• Total RMS Power: 1020 watts
• Class D 2 ohm Stable 4-Channel-Channel Amplifier

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• 4 Channel: 120 watts x 4 channel @ 4 ohm
• 4 Channel: 220 watts x 4 channel @ 2 ohm
• 3 Channel: 120 watts x 2 channel @ 4 ohm + 440 watts x 1 channel @ 4 ohm
• 3 Channel: 220 watts x 2 channel @ 2 ohm + 440 watts x 1 channel @ 4 ohm
• 2 Channel: 440 watts x 2 channel @ 4-ohm
• Total RMS Power: 1020 watts
• Class D 2 ohm Stable 4-Channel-Channel Amplifier

MTX XTHUNDER800.5

800W RMS XThunder Series 5-Channel Full Range Class D Amplifier

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MTX XTHUNDER800.5

800W RMS XThunder Series 5-Channel Full Range Class D Amplifier

• RMS Power: 60W x 4 + 300W x 1 @ 4 ohm, 90W x 4 + 400W x 1 @ 2 ohm
• Total Power: 800W
• Variable Low Pass Filter
• Dimensions: 8.9" W x 14.2" L x 2.03" H

• RMS Power: 60W x 4 + 300W x 1 @ 4 ohm, 90W x 4 + 400W x 1 @ 2 ohm
• Total Power: 800W
• Variable Low Pass Filter
• Dimensions: 8.9" W x 14.2" L x 2.03" H

NVX NDA105

4000W Peak (2000W) RMS N-Series Class-D 1-Ohm Stable Monoblock Amplifier

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NVX NDA105

4000W Peak (2000W) RMS N-Series Class-D 1-Ohm Stable Monoblock Amplifier

• 780 watts x 1 channel @ 4 ohm
• 1300 watts x 1 channel @ 2 ohm
• 2000 watts x 1 channel @ 1 ohm
• Total RMS Power: 2000 watts
• CEA-2006 Compliant
• 0 to +12 dB bass boost

13

• 780 watts x 1 channel @ 4 ohm
• 1300 watts x 1 channel @ 2 ohm
• 2000 watts x 1 channel @ 1 ohm
• Total RMS Power: 2000 watts
• CEA-2006 Compliant
• 0 to +12 dB bass boost

Hifonics Zeus 1800-Watt Max Class D Monoblock Car Audio Amplifier (4 Pack)

Hifonics Zeus 1800-Watt Max Class D Monoblock Car Audio Amplifier (4 Pack)

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Hifonics Zeus 1800-Watt Max Class D Monoblock Car Audio Amplifier (4 Pack)

Hifonics Zeus 1800-Watt Max Class D Monoblock Car Audio Amplifier (4 Pack)

• 900 Watts Peak x 1 @ 4 ohm
• 800 Watts Peak x 1 @ 2 ohm
• 1,600 Watts Peak x 1 @ 1 ohm
• Total Peak Power: 1,600 Watts
• Low-Pass and Sub-Sonic Filters
• Variable Bass Boost
• Aluminum Heatsink
• 15.7" W x 10" L x 2.4" H

2

• 900 Watts Peak x 1 @ 4 ohm
• 800 Watts Peak x 1 @ 2 ohm
• 1,600 Watts Peak x 1 @ 1 ohm
• Total Peak Power: 1,600 Watts
• Low-Pass and Sub-Sonic Filters
• Variable Bass Boost
• Aluminum Heatsink
• 15.7" W x 10" L x 2.4" H

Crunch PZ2-4030.1D

4000W RMS Class D Powerzone 2 Series Monoblock Car Amplifier

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Crunch PZ2-4030.1D

4000W RMS Class D Powerzone 2 Series Monoblock Car Amplifier

• 1000 watts x 1 channel @ 4 ohm
• 2000 watts x 1 channel @ 2 ohm
• 4000 watts x 1 channel @ 1 ohm
• Total RMS Power: 4000 watts
• Class D 1 ohm Stable Monoblock Amplifier

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VIP Product Get $14.00 in rewards to spend later

• 1000 watts x 1 channel @ 4 ohm
• 2000 watts x 1 channel @ 2 ohm
• 4000 watts x 1 channel @ 1 ohm
• Total RMS Power: 4000 watts
• Class D 1 ohm Stable Monoblock Amplifier

DS18 GFX-8K2

8000W RMS Class D GFX Series Monoblock Full Range Car Amplifier with Bass Remote

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DS18 GFX-8K2

8000W RMS Class D GFX Series Monoblock Full Range Car Amplifier with Bass Remote

• 3500 watts x 1 channel @ 8 ohm
• 5000 watts x 1 channel @ 4 ohm
• 8000 watts x 1 channel @ 2 ohm
• Total RMS Power: 8000 watts
• Class D 2 ohm Stable 1 - Mono-Channel Amplifier

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• 3500 watts x 1 channel @ 8 ohm
• 5000 watts x 1 channel @ 4 ohm
• 8000 watts x 1 channel @ 2 ohm
• Total RMS Power: 8000 watts
• Class D 2 ohm Stable 1 - Mono-Channel Amplifier

Focal FDP4.600 + Free $150 Gift Card

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

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Focal FDP4.600 + Free $150 Gift Card

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

2

• 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

Pioneer GM-D9705

2000W 5-Channel GM Digital Champion Series Class D Amplifier w/ Wired Bass Boost Remote

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Pioneer GM-D9705

2000W 5-Channel GM Digital Champion Series Class D Amplifier w/ Wired Bass Boost Remote

• RMS: 75 Watts x 4 + 350 Watts x 1 @ 4 ohm
•RMS: 100 Watts x 4 + 600 Watts x 1 @ 2 ohm
• 200 Watts RMS x 2 @ 4 ohm, Bridged
• Total Peak Power: 2000 Watts
• CEA-2006 Compliant
• CEA-2006 Compliant Amplifier
• Wired remote bass boost level control included
• Speaker-level (high-level) inputs

2

• RMS: 75 Watts x 4 + 350 Watts x 1 @ 4 ohm
•RMS: 100 Watts x 4 + 600 Watts x 1 @ 2 ohm
• 200 Watts RMS x 2 @ 4 ohm, Bridged
• Total Peak Power: 2000 Watts
• CEA-2006 Compliant
• CEA-2006 Compliant Amplifier
• Wired remote bass boost level control included
• Speaker-level (high-level) inputs

Alpine S-A60M

S-Series Monoblock Class-D Amplifier (600W RMS)

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Alpine S-A60M

S-Series Monoblock Class-D Amplifier (600W RMS)

• Alpine S-Series Mono Power Amplifier - S-A60M
• 400W RMS x 1 (4ohm, 14.4V < 1% THD+N)
• 600W RMS x 1 (2ohm, 14.4V < 1% THD+N)
• Remote bass knob compatible

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• Alpine S-Series Mono Power Amplifier - S-A60M
• 400W RMS x 1 (4ohm, 14.4V < 1% THD+N)
• 600W RMS x 1 (2ohm, 14.4V < 1% THD+N)
• Remote bass knob compatible

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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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