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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)
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Picasso-Nano Series (14)
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VC Series (11)
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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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Pyle PLA-1200

1900W Max Monoblock Chopper Series Class D Amplifier

PLA-1200 big DISCONTINUED
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Pyle PLA-1200

1900W Max Monoblock Chopper Series Class D Amplifier

• RMS: 200W x 1 @ 4 ohm, 350W x 1 @ 2 ohm, 600W x 1 @ 1 ohm
• Total Peak Power: 1900W
• Wired Bass Remote Included
• Bass Boost: 0-16 dB
• Class D Circuitry
• Dimensions: 10-5/8"W x 12"L x 1-7/16"H

• RMS: 200W x 1 @ 4 ohm, 350W x 1 @ 2 ohm, 600W x 1 @ 1 ohm
• Total Peak Power: 1900W
• Wired Bass Remote Included
• Bass Boost: 0-16 dB
• Class D Circuitry
• Dimensions: 10-5/8"W x 12"L x 1-7/16"H

Boss R1200

1200W Max 4 Channel Rage Series Class D Amplifier

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Boss R1200

1200W Max 4 Channel Rage Series Class D Amplifier

Rage Series 4-Channel Class D Car Amplifier • 4 ohm: 150 watts x 4 chan. • 2 ohm: 600 watts x 2 chan. • Max Bridged, 4 ohm: 1200 watts x 2 chan. • Pulse Width Modulated MOSFET power supply

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Rage Series 4-Channel Class D Car Amplifier • 4 ohm: 150 watts x 4 chan. • 2 ohm: 600 watts x 2 chan. • Max Bridged, 4 ohm: 1200 watts x 2 chan. • Pulse Width Modulated MOSFET power supply

Alpine MRX-V60

600W RMS, 5-Channel Class D X-Power Series Car Amplifier

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Alpine MRX-V60

600W RMS, 5-Channel Class D X-Power Series Car Amplifier

MRX Series 5-Channel Car Amplifier • 50W RMS @ 4 Ohm x 4 Chan. + 200 Watts x 1 Chan. • 75W RMS @ 2 Ohm x 4 Chan. + 300 watts x 1 chan. • 150W RMS @ 4 Ohm Bridged x 2 Channels • Variable Low-Pass Crossover • Variable High-Pass Crossover • Variable Bass Boost

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MRX Series 5-Channel Car Amplifier • 50W RMS @ 4 Ohm x 4 Chan. + 200 Watts x 1 Chan. • 75W RMS @ 2 Ohm x 4 Chan. + 300 watts x 1 chan. • 150W RMS @ 4 Ohm Bridged x 2 Channels • Variable Low-Pass Crossover • Variable High-Pass Crossover • Variable Bass Boost

MTX Audio XThunder X500D

500W, Class D Monoblock Amplifier X Thunder 500 XD (500XD)

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MTX Audio XThunder X500D

500W, Class D Monoblock Amplifier X Thunder 500 XD (500XD)

X Thunder Series Class D Monoblock Car Amplifier • 300W x 1 chan. @ 4 ohm • 500W x 1 chan. @ 2 ohm • 1500W x 1 chan. Max • Anodized finish • Heavy duty aluminum heat sinks • Subsonic Filter (20-50 Hz, 12 dB/octave)

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X Thunder Series Class D Monoblock Car Amplifier • 300W x 1 chan. @ 4 ohm • 500W x 1 chan. @ 2 ohm • 1500W x 1 chan. Max • Anodized finish • Heavy duty aluminum heat sinks • Subsonic Filter (20-50 Hz, 12 dB/octave)

MTX TD500.1D

500W RMS, Monoblock TD Series Class D Car Amplifier

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MTX TD500.1D

500W RMS, Monoblock TD Series Class D Car Amplifier

Monoblock TD Series Class D Car Amplifier • 4 ohm: 300 watts x 1 chan. • 2 ohm: 500 watts x 1 chan. • Dual Speaker Terminals Simplify the Hookup of Multiple Speakers • Mono channel operation

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Monoblock TD Series Class D Car Amplifier • 4 ohm: 300 watts x 1 chan. • 2 ohm: 500 watts x 1 chan. • Dual Speaker Terminals Simplify the Hookup of Multiple Speakers • Mono channel operation

MB Quart RA1000.1

1000W Class D 1-Channel Monoblock Reference Series Amplifier

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MB Quart RA1000.1

1000W Class D 1-Channel Monoblock Reference Series Amplifier

• Peak: 475W x 1 @ 4 ohm, 750W x 1 @ 2 ohm, 1000W x 1 @ 1 ohm
• Total Peak Power: 1000W
• Built-In System Diagnostics
• Variable Bass EQ: 0 to +10 dB at 45 Hz
• Class D Circuitry
• Dimensions: 8-5/16"W x 15-1/2"D x 2-3/8"H

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• Peak: 475W x 1 @ 4 ohm, 750W x 1 @ 2 ohm, 1000W x 1 @ 1 ohm
• Total Peak Power: 1000W
• Built-In System Diagnostics
• Variable Bass EQ: 0 to +10 dB at 45 Hz
• Class D Circuitry
• Dimensions: 8-5/16"W x 15-1/2"D x 2-3/8"H

Sound Storm (SSL) F3600D

3600W Max, Class D Monoblock Power Amplifier with Bass Remote

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Sound Storm (SSL) F3600D

3600W Max, Class D Monoblock Power Amplifier with Bass Remote

SSL Series Monoblock Class D Car Amplifier • 1200 Watts x 1 Chan. @ 4 Ohm • 1800 Watts x 1 Chan. @ 2 Ohm • 3600 Watts x 1 Chan. @ 1 Ohm • MOSFET PWM Power Supply • Nickel-Plated RCA Level/Screw Terminals

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SSL Series Monoblock Class D Car Amplifier • 1200 Watts x 1 Chan. @ 4 Ohm • 1800 Watts x 1 Chan. @ 2 Ohm • 3600 Watts x 1 Chan. @ 1 Ohm • MOSFET PWM Power Supply • Nickel-Plated RCA Level/Screw Terminals

MA Audio HK4000D

4000W RMS Class X / D Competition Monoblock Amplifier

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MA Audio HK4000D

4000W RMS Class X / D Competition Monoblock Amplifier

4000W Digital Class X Competition Mono Block Amplifier • 3600W x 1 @ 2 Ohm at 14.4V • 4000W @ 2 Ohm at 17.0V • Temperature, Voltage & Output Level LCD Display • Fully Unregulated Power Supply • Full Mosfet Circuitry • Stainless Steel Finish Heat sink • Low Pass and Subsonic Filters • 0 - 18 dB Bass Boost

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4000W Digital Class X Competition Mono Block Amplifier • 3600W x 1 @ 2 Ohm at 14.4V • 4000W @ 2 Ohm at 17.0V • Temperature, Voltage & Output Level LCD Display • Fully Unregulated Power Supply • Full Mosfet Circuitry • Stainless Steel Finish Heat sink • Low Pass and Subsonic Filters • 0 - 18 dB Bass Boost

Planet Audio BB1400.1

1900W Max Big Bang Series Class D Monoblock Amplifier with Remote Level Control

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Planet Audio BB1400.1

1900W Max Big Bang Series Class D Monoblock Amplifier with Remote Level Control

Big Bang Series Monoblock Class D Car Amplifier • 1900W Max • 1400W x 1-Chan @ 1 Ohm • Strap Two Amps Together for Twice the Power • Subsonic Filter • Variable Bass Boost (0 to +18 dB) • Wired Remote Bass Level Control

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Big Bang Series Monoblock Class D Car Amplifier • 1900W Max • 1400W x 1-Chan @ 1 Ohm • Strap Two Amps Together for Twice the Power • Subsonic Filter • Variable Bass Boost (0 to +18 dB) • Wired Remote Bass Level Control

Autotek SS2500.1D

2500W Peak Super Sport Class-D Monoblock 1-Ohm Stable Amplifier with Bass Knob Included

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Autotek SS2500.1D

2500W Peak Super Sport Class-D Monoblock 1-Ohm Stable Amplifier with Bass Knob Included

• 675 Watts Max x 1 @ 4 ohm
• 1250 Watts Max x 1 @ 2 ohm
• 2500 Watts Max x 1 @ 1 ohm
• Total Peak Power: 2500 Watts
• Low-Pass and Subsonic Filters Built In
• 0-12dB Variable Bass Boost
• Heavy-Duty Aluminum Heatsink
• Dimensions: 10" W x 10.25" L x 2" H

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• 675 Watts Max x 1 @ 4 ohm
• 1250 Watts Max x 1 @ 2 ohm
• 2500 Watts Max x 1 @ 1 ohm
• Total Peak Power: 2500 Watts
• Low-Pass and Subsonic Filters Built In
• 0-12dB Variable Bass Boost
• Heavy-Duty Aluminum Heatsink
• Dimensions: 10" W x 10.25" L x 2" H

Alpine X-A90V

900W RMS X-Series Class-D 5-Channel 2 Ohm Stable Amplifier

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Alpine X-A90V

900W RMS X-Series Class-D 5-Channel 2 Ohm Stable Amplifier

• 600 Watts RMS x 5 @ 4 ohm (75W x 4, 300W x 1)
• 900 Watts RMS x 5 @ 2 ohm (100W x 4, 500W x 1)
• 900 Watts RMS x 5 @ 4 ohm, Bridged (200W x 2, 500W x 1)
• CEA-2006 Compliant
• Low Pass, High Pass and Subsonic Filters
• 0 - 12dB Bass Boost
• Aluminum Heatsink
• Dimensions: 11-3/4" W x 7-5/8" L x 2" H

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VIP Product Get $90.00 in rewards to spend later

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• 600 Watts RMS x 5 @ 4 ohm (75W x 4, 300W x 1)
• 900 Watts RMS x 5 @ 2 ohm (100W x 4, 500W x 1)
• 900 Watts RMS x 5 @ 4 ohm, Bridged (200W x 2, 500W x 1)
• CEA-2006 Compliant
• Low Pass, High Pass and Subsonic Filters
• 0 - 12dB Bass Boost
• Aluminum Heatsink
• Dimensions: 11-3/4" W x 7-5/8" L x 2" H

Planet Audio TRQ1.5150D

5150W Monoblock Torque Series 1 Ohm Stable Class D Amplifier

5-Year Manufacturer's Extended Warranty When Bought Here!

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Planet Audio TRQ1.5150D

5150W Monoblock Torque Series 1 Ohm Stable Class D Amplifier

• RMS: 1850 x 1 @ 4 ohm
• Total Peak Power: 5150W
• Strapped Power bridged @ 2 ohm: 10,300 Watts x 1 chan.
• Wired remote bass level control included

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5-Year Manufacturer's Extended Warranty When Bought Here!

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• RMS: 1850 x 1 @ 4 ohm
• Total Peak Power: 5150W
• Strapped Power bridged @ 2 ohm: 10,300 Watts x 1 chan.
• Wired remote bass level control included

Power Acoustik A1000DB

1000W Max, Class D Monoblock Amplifier

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Power Acoustik A1000DB

1000W Max, Class D Monoblock Amplifier

1000 watts Monoblock Power Amplifier • 650 watts RMS x 1 chan. @ 2 ohm • 375 watts RMS x 1 chan. @ 4 ohm • S/N Ratio: >100 dB

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1000 watts Monoblock Power Amplifier • 650 watts RMS x 1 chan. @ 2 ohm • 375 watts RMS x 1 chan. @ 4 ohm • S/N Ratio: >100 dB

EXCLUSIVE

Kicker ZX1500.1 (10ZX1500.1) + Amplifier Kit

1500W RMS, Class D Monoblock ZX Series Amplifier with Included 0 Gauge Amplifier Kit (ZX15001)

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Kicker ZX1500.1 (10ZX1500.1) + Amplifier Kit

1500W RMS, Class D Monoblock ZX Series Amplifier with Included 0 Gauge Amplifier Kit (ZX15001)

ZX Series Class D Monoblock Car Amplifier • 750W x 1 chan. @ 4 ohm • 1500W x 1 chan. @ 2 ohm • Balanced Differential Inputs • Muting Circuit • Optional Vinyl Skins For Personalization • Included Matching Kicker 0 Gauge Amplifier Kit • 3-Year Manufacturer Warranty

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ZX Series Class D Monoblock Car Amplifier • 750W x 1 chan. @ 4 ohm • 1500W x 1 chan. @ 2 ohm • Balanced Differential Inputs • Muting Circuit • Optional Vinyl Skins For Personalization • Included Matching Kicker 0 Gauge Amplifier Kit • 3-Year Manufacturer Warranty

Crossfire C3 501

500W RMS Class D Monoblock C3 Series Amplifier

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Crossfire C3 501

500W RMS Class D Monoblock C3 Series Amplifier

C3 Series Monoblock Class D Car Amplifier • 500W RMS @ 1 Ohm • Variable Bass Boost • Variable Low-Pass Crossover • Small Chassis • 2-Way System Protection Circuitry

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C3 Series Monoblock Class D Car Amplifier • 500W RMS @ 1 Ohm • Variable Bass Boost • Variable Low-Pass Crossover • Small Chassis • 2-Way System Protection Circuitry

Memphis 16-MCD1000

1100W RMS, Class D Monoblock MClass Series Amplifier

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Memphis 16-MCD1000

1100W RMS, Class D Monoblock MClass Series Amplifier

Class-D Monoblock Amplifier • 600W RMS x 1 @ 2 • 1100W RMS x 1 @ 1 • Adjustable Input Sensitivity • Compact Aluminum Chassis with Black Pearl Finish • Built-in Low-Pass and Subsonic Filters • Full MOSFET Design

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Class-D Monoblock Amplifier • 600W RMS x 1 @ 2 • 1100W RMS x 1 @ 1 • Adjustable Input Sensitivity • Compact Aluminum Chassis with Black Pearl Finish • Built-in Low-Pass and Subsonic Filters • Full MOSFET Design

Soundstream TX1.2000D

2000W RMS, Tarantula Series Monoblock Class D Amplifier

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Soundstream TX1.2000D

2000W RMS, Tarantula Series Monoblock Class D Amplifier

Tarantula Series Monoblock Class D Car Amplifier • 1300W x 1 Chan. @ 2 Ohm • 750W x 1 Chan. @ 4 Ohm • Double Side PCB And SMD Components • Remote Bass Level Input • Active X-Over • 3-Way System Protection Circuitry

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Tarantula Series Monoblock Class D Car Amplifier • 1300W x 1 Chan. @ 2 Ohm • 750W x 1 Chan. @ 4 Ohm • Double Side PCB And SMD Components • Remote Bass Level Input • Active X-Over • 3-Way System Protection Circuitry

Soundstream DTR1.900D

900W Max, D-Tower Series Class D Monoblock Power Amplifier

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Soundstream DTR1.900D

900W Max, D-Tower Series Class D Monoblock Power Amplifier

D-Tower Series Monoblock Class D Car Amplifier • 900W x 1 Chan. @ 1 Ohm • 600W x 1 Chan. @ 2 Ohm • Double Side PCB And SMD Components • Remote Bass Level Input • Gloss Black Finish • 3-Way System Protection Circuitry

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D-Tower Series Monoblock Class D Car Amplifier • 900W x 1 Chan. @ 1 Ohm • 600W x 1 Chan. @ 2 Ohm • Double Side PCB And SMD Components • Remote Bass Level Input • Gloss Black Finish • 3-Way System Protection Circuitry

Kenwood eXcelon XR600-1

600W eXcelon Series Monoblock Class D Car Amplifier

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Kenwood eXcelon XR600-1

600W eXcelon Series Monoblock Class D Car Amplifier

• RMS Power: 400W x 1 @ 4 ohm, 600W x 1 @ 2 ohm
• Variable Low-Pass Filter (50-200 Hz, 24 dB/octave)
• CEA-2006 Compliant
• Dimensions: 8-11/16"W x 1-7/16"L x 8"H

• RMS Power: 400W x 1 @ 4 ohm, 600W x 1 @ 2 ohm
• Variable Low-Pass Filter (50-200 Hz, 24 dB/octave)
• CEA-2006 Compliant
• Dimensions: 8-11/16"W x 1-7/16"L x 8"H

Massive Audio BX2

480W RMS, 2-Channel Class D BX Series High Performance Car Amplifier

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Massive Audio BX2

480W RMS, 2-Channel Class D BX Series High Performance Car Amplifier

• 120W x 2 Chan. @ 4 ohm
• 240W x 2 Chan. @ 2 ohm
• 480W x 1 Chan. @ 4 ohm
• 3-Way System Protection
• 2 or 1 Channel Operation
• 8 Gauge Power and Ground Inputs
• Selectable LPF or HPF

• 120W x 2 Chan. @ 4 ohm
• 240W x 2 Chan. @ 2 ohm
• 480W x 1 Chan. @ 4 ohm
• 3-Way System Protection
• 2 or 1 Channel Operation
• 8 Gauge Power and Ground Inputs
• Selectable LPF or HPF

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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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