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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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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.
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.
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.
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.
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.

Speaker Level Inputs
Speaker level inputs are commonly referred to as high-level inputs and vice versa. This input type allows you to get your audio signal directly from the speaker wire in your vehicle, instead of using RCA cables. The advantage of this is factory integration, as most stock radios do not have RCA outputs to run amplifiers.
Maximum Input Gauge Size
This is the largest gauge wire that will fit into the power and ground terminals of this device. The lower the gauge number, the thicker the wire is. For example, a 4 gauge wire is thicker than an 8 gauge wire and thus has higher current carrying capacity. Always do your best to get this size wire to reduce the risk of damage to your components.
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EXCLUSIVE

Sony XM-ZZR3301 + Amplifier Kit

1100W Max, ZR Series Class D Monoblock Amplifier w/ 4 Gauge Amplifier Kit Included (XMZZR3301)

XM-ZZR3301_ISPKBL4-BG big DISCONTINUED
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Sony XM-ZZR3301 + Amplifier Kit

1100W Max, ZR Series Class D Monoblock Amplifier w/ 4 Gauge Amplifier Kit Included (XMZZR3301)

ZR Series Power Amplifier • Class D Monoblock • 330W RMS x 1 Chan. @ 4 Ohm • 600W RMS x 1 Chan. @ 2 Ohm • 1100W Max • High-Level Sensing Power On Feature • Gold Plated Speaker Terminals • Included 4 AWG Amplifier Kit

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ZR Series Power Amplifier • Class D Monoblock • 330W RMS x 1 Chan. @ 4 Ohm • 600W RMS x 1 Chan. @ 2 Ohm • 1100W Max • High-Level Sensing Power On Feature • Gold Plated Speaker Terminals • Included 4 AWG Amplifier Kit

EXCLUSIVE

Alpine PDX-M12 1200W RMS Mono Car Amplifier + 4 Gauge Premium OFC Amp Kit

Class D Digital Car Amplifier + 100% Copper 4 Gauge Amp Installation Kit

PDX-M12_XKIT42 big DISCONTINUED
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Alpine PDX-M12 1200W RMS Mono Car Amplifier + 4 Gauge Premium OFC Amp Kit

Class D Digital Car Amplifier + 100% Copper 4 Gauge Amp Installation Kit

• RMS: 1200W x 1 @ 4 ohm, 1200W x 1 @ 2 ohm
• Total RMS Power: 1200W
• CEA-2006 Compliant
• 6-Layer Glass Epoxy PC Board and Compact Size
• Thermal Protection Circuitry
• Dimensions: 7-9/16"D x 10-1/8"W x 2"H
• 4 Gauge 2-Channel X-Series Complete Amplifier Installation Kit

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• RMS: 1200W x 1 @ 4 ohm, 1200W x 1 @ 2 ohm
• Total RMS Power: 1200W
• CEA-2006 Compliant
• 6-Layer Glass Epoxy PC Board and Compact Size
• Thermal Protection Circuitry
• Dimensions: 7-9/16"D x 10-1/8"W x 2"H
• 4 Gauge 2-Channel X-Series Complete Amplifier Installation Kit

PowerBass ASA 600.1DX Amplifier + Free Installation Kit

1200W Max, Auto Sound Series Class D Monoblock Amplifier (ASA600.1DX) + Belva Amp Kit

ASA 600.1DX_BAK42BK big DISCONTINUED
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PowerBass ASA 600.1DX Amplifier + Free Installation Kit

1200W Max, Auto Sound Series Class D Monoblock Amplifier (ASA600.1DX) + Belva Amp Kit

• Auto Sound Monoblock Class D Car Amplifier
• 150 Watts x 1 Chan. @ 4 Ohm
• 300 Watts x 1 Chan. @ 2 Ohm
• 1200 Watts Max
• 3-Way System Protection Circuitry
• LED Power And Protect Indicators
• MOSFET Power Supply

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• Auto Sound Monoblock Class D Car Amplifier
• 150 Watts x 1 Chan. @ 4 Ohm
• 300 Watts x 1 Chan. @ 2 Ohm
• 1200 Watts Max
• 3-Way System Protection Circuitry
• LED Power And Protect Indicators
• MOSFET Power Supply

Alpine MRV-M1200 Mono 1200w RMS 2-Ohm Car Audio Stereo Amplifier+Amp Kit+Remote

2400W Peak (1200W RMS) Class-D Monoblock Amplifier with Remote Bass Knob Included Package

MRV-M1200-4 big DISCONTINUED
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Alpine MRV-M1200 Mono 1200w RMS 2-Ohm Car Audio Stereo Amplifier+Amp Kit+Remote

2400W Peak (1200W RMS) Class-D Monoblock Amplifier with Remote Bass Knob Included Package

• 600 Watts RMS x 1 @ 4 ohm
• 1200 Watts RMS x 1 @ 2 ohm
• Total Peak Power: 2400 Watts
• CEA-2006 Compliant
• 40% smaller footprint than its predecessors
• Heavy duty aluminum alloy heat-sink for extreme heat dissipation
• 13-1/2"W x 2-1/4"L x 8-5/8"H

• 600 Watts RMS x 1 @ 4 ohm
• 1200 Watts RMS x 1 @ 2 ohm
• Total Peak Power: 2400 Watts
• CEA-2006 Compliant
• 40% smaller footprint than its predecessors
• Heavy duty aluminum alloy heat-sink for extreme heat dissipation
• 13-1/2"W x 2-1/4"L x 8-5/8"H

EXCLUSIVE

Hifonics ZXX-3200.1D 3200W Car Amplifier + 0 Gauge Amp Kit + 1 Farad Capacitor

Zeus Series Class-D Monoblock Bass Package

ZXX-3200.1D, BAK02, BB1D big DISCONTINUED
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Hifonics ZXX-3200.1D 3200W Car Amplifier + 0 Gauge Amp Kit + 1 Farad Capacitor

Zeus Series Class-D Monoblock Bass Package

• 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

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• 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

EXCLUSIVE

Hifonics ZXX-2400.1D 2400W Car Amplifier + Amp Kit + 1 Farad Capacitor

Zeus Series Class-D Mono block Bass Package

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Hifonics ZXX-2400.1D 2400W Car Amplifier + Amp Kit + 1 Farad Capacitor

Zeus Series Class-D Mono block Bass Package

• 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

104

• 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

EXCLUSIVE

Kicker ZX400.1 (10ZX400.1) + Amplifier Kit

400W RMS, Class D Monoblock ZX Series Amplifier (ZX4001) w/ 4 Gauge Amplifier Kit

10ZX400.1_ISPKBL4-BG big DISCONTINUED
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Kicker ZX400.1 (10ZX400.1) + Amplifier Kit

400W RMS, Class D Monoblock ZX Series Amplifier (ZX4001) w/ 4 Gauge Amplifier Kit

ZX Series Class D Monoblock Car Amplifier • 200W x 1 chan. @ 4 ohm • 400W x 1 chan. @ 2 ohm • Balanced Differential Inputs • Muting Circuit • Top Mounted Controls • Includes 4 AWG Amplifier Kit

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ZX Series Class D Monoblock Car Amplifier • 200W x 1 chan. @ 4 ohm • 400W x 1 chan. @ 2 ohm • Balanced Differential Inputs • Muting Circuit • Top Mounted Controls • Includes 4 AWG Amplifier Kit

Kicker 08ZX1500.1 (ZX1500.1) + Amplifier Kit

1500W RMS, Class D Monoblock ZX Series Amplifier (08ZX15001, ZX15001) w/ 0 AWG Amplifier Kit

08ZX1500.1_PK0Z big DISCONTINUED
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Kicker 08ZX1500.1 (ZX1500.1) + Amplifier Kit

1500W RMS, Class D Monoblock ZX Series Amplifier (08ZX15001, ZX15001) w/ 0 AWG Amplifier Kit

ZX Series Class D Monoblock Car Amplifier • 750W x 1 chan. @ 4 ohm • 1500W x 1 chan. @ 2 ohm • Balanced differential inputs make KICKER ZX Amplifiers compatible with any factory radios • Includes 0 AWG Amp Kit and RCA Cables

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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 make KICKER ZX Amplifiers compatible with any factory radios • Includes 0 AWG Amp Kit and RCA Cables

EXCLUSIVE

Kicker 08ZX550.3 (ZX550.3) + Amplifier Kit

590W RMS, 3-Channel ZX Series Amplifier (ZX550.3, 08ZX5503, ZX5503) w/ 4 Gauge Amplifier Kit.

08ZX550.3_ISPKBL4-4CH big DISCONTINUED
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Kicker 08ZX550.3 (ZX550.3) + Amplifier Kit

590W RMS, 3-Channel ZX Series Amplifier (ZX550.3, 08ZX5503, ZX5503) w/ 4 Gauge Amplifier Kit.

ZX Series 3-Channel Class AB with Class D Subwoofer Channel Car Amplifier • 70W x 2 chan. + 210W x sub chan. @ 4 ohm • 85W x 2 chan. + 420W sub chan. @ 2 ohm • 1100W Max approx. • Includes 4 AWG Amplifier Kit

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ZX Series 3-Channel Class AB with Class D Subwoofer Channel Car Amplifier • 70W x 2 chan. + 210W x sub chan. @ 4 ohm • 85W x 2 chan. + 420W sub chan. @ 2 ohm • 1100W Max approx. • Includes 4 AWG Amplifier Kit

EXCLUSIVE

Rockford Fosgate PRIME R1000-1D + Amplifier Kit

1000W RMS, PRIME Series Class D Monoblock Amplifier with Included 4 Gauge Amplifier Kit

R1000-1D_ISPKBL4-BG big DISCONTINUED
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Rockford Fosgate PRIME R1000-1D + Amplifier Kit

1000W RMS, PRIME Series Class D Monoblock Amplifier with Included 4 Gauge Amplifier Kit

PRIME Series Single-Channel Monoblock Class D Car Amplifier • 500W x 1 Chan. @ 4 Ohm • 1000W x 1 Chan. @ 2 Ohm • Tuned Bass EQ • Variable Low-Pass Filter • Included 4 Gauge Amplifier Kit

1

PRIME Series Single-Channel Monoblock Class D Car Amplifier • 500W x 1 Chan. @ 4 Ohm • 1000W x 1 Chan. @ 2 Ohm • Tuned Bass EQ • Variable Low-Pass Filter • Included 4 Gauge Amplifier Kit

NVX JAD1200.1 + FREE 4 Gauge Amp kit

True 2400 Watt Peak 1200W RMS Class D Monoblock Amplifier + Amp kit and Bass Remote Included

JAD1200.1 BAK42 big DISCONTINUED
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NVX JAD1200.1 + FREE 4 Gauge Amp kit

True 2400 Watt Peak 1200W RMS Class D Monoblock Amplifier + Amp kit and Bass Remote Included

• RMS: 500W x 1 @ 4 ohm, 800W x 1 @ 2 ohm, 1200W x 1 @ 1 ohm
• Total RMS Power: 1200W
• CEA-2006 Compliant
• Wired Bass Remote Included
• Ultra Efficient Class D Design
• Dimensions: 6-7/10"W x 12-8/10"L x 1-8/10"H

• RMS: 500W x 1 @ 4 ohm, 800W x 1 @ 2 ohm, 1200W x 1 @ 1 ohm
• Total RMS Power: 1200W
• CEA-2006 Compliant
• Wired Bass Remote Included
• Ultra Efficient Class D Design
• Dimensions: 6-7/10"W x 12-8/10"L x 1-8/10"H

EXCLUSIVE

Phoenix Gold RSd 600.1 (RSd600.1) + Amplifier Kit

650W RMS, Radial Sd Series Class D Monoblock Amplifier with 4 Gauge Amplifier Kit

RSd600.1_ISPKBL4-BG big DISCONTINUED
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Phoenix Gold RSd 600.1 (RSd600.1) + Amplifier Kit

650W RMS, Radial Sd Series Class D Monoblock Amplifier with 4 Gauge Amplifier Kit

650W RMS RSd Class D Monoblock Amplifier • 400W x 1 chan. @ 4 Ohm • 650W x 1 chan. @ 2 Ohm • MOSFET power supply • protection circuitry • line level inputs • variable bass boost • Included 4 AWG Amplifier Kit

650W RMS RSd Class D Monoblock Amplifier • 400W x 1 chan. @ 4 Ohm • 650W x 1 chan. @ 2 Ohm • MOSFET power supply • protection circuitry • line level inputs • variable bass boost • Included 4 AWG Amplifier Kit

EXCLUSIVE

Kenwood KAC-9105D + Amplifier Kit

900W RMS Class D Monoblock Performance Series Amplifier w/ Amplifier Install Kit

KAC-9105D_BAK42 big DISCONTINUED
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Kenwood KAC-9105D + Amplifier Kit

900W RMS Class D Monoblock Performance Series Amplifier w/ Amplifier Install Kit

• 500W x 1 chan. @ 4 ohm
• 900W x 1 chan. @ 2 ohm
• >900W x 1 chan. @ 1 ohm
• 1800W x 1 chan. Max
• Stackable operation capable
• Speaker-level inputs
• Preamp RCA outputs

3

• 500W x 1 chan. @ 4 ohm
• 900W x 1 chan. @ 2 ohm
• >900W x 1 chan. @ 1 ohm
• 1800W x 1 chan. Max
• Stackable operation capable
• Speaker-level inputs
• Preamp RCA outputs

EXCLUSIVE

Infinity KAPPA-FOUR + Amplifier Kit

1200W Max , 4 Channel Class D Car Amplifier + Kicker 4 Gauge Amplifier Kit + 1 Farad Capacitor

KAPPA-FOUR_09ZCK44 big DISCONTINUED
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Infinity KAPPA-FOUR + Amplifier Kit

1200W Max , 4 Channel Class D Car Amplifier + Kicker 4 Gauge Amplifier Kit + 1 Farad Capacitor

Infinity KAPPA 4-Channel Class D Car Amplifier • DirectFET Transistors for Increased Power Output • 3-Way Smart System Protection • Variable Low-Pass Filter • Variable High-Pass Filter • RX1200 Digital 1.2 Farad Capacitor • Bright LED Voltage Display • For Systems up to 1200 Watts

88

Infinity KAPPA 4-Channel Class D Car Amplifier • DirectFET Transistors for Increased Power Output • 3-Way Smart System Protection • Variable Low-Pass Filter • Variable High-Pass Filter • RX1200 Digital 1.2 Farad Capacitor • Bright LED Voltage Display • For Systems up to 1200 Watts

EXCLUSIVE

Hifonics Brutus BRZ1200.1D + Amplifier Kit

1200W RMS, Brutus Series 1-Channel Monoblock Super Class D Amplifier (BRZ 1200.1D) w/ 0 AWG Amp Kit

BRZ1200.1D-2 big DISCONTINUED
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Hifonics Brutus BRZ1200.1D + Amplifier Kit

1200W RMS, Brutus Series 1-Channel Monoblock Super Class D Amplifier (BRZ 1200.1D) w/ 0 AWG Amp Kit

Brutus Series Monoblock Class D Car Amplifier • 1200W x 1-Chan. @ 1 Ohm • 900W x 1-Chan. @ 2 Ohm • 450W x 1-Chan. @ 4 Ohm • Wired HFR-3 Remote • 4-Way System Protection • Phase Shift • Included 0 Gauge Amplifier Kit

232

Brutus Series Monoblock Class D Car Amplifier • 1200W x 1-Chan. @ 1 Ohm • 900W x 1-Chan. @ 2 Ohm • 450W x 1-Chan. @ 4 Ohm • Wired HFR-3 Remote • 4-Way System Protection • Phase Shift • Included 0 Gauge Amplifier Kit

EXCLUSIVE

Hifonics Brutus BRX2016.1D 2000W RMS Amp + 0 Gauge Amp Kit + 1 Farad Capacitor

Brutus Series Subwoofer Amplifier + Amp Wire Kit and Capacitor Package

BRX2016.1D, BAK02, B big DISCONTINUED
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Hifonics Brutus BRX2016.1D 2000W RMS Amp + 0 Gauge Amp Kit + 1 Farad Capacitor

Brutus Series Subwoofer Amplifier + Amp Wire Kit and Capacitor Package

• RMS Power: 700W x 1 @ 4 ohm, 1400W x 1 @ 2 ohm, 2000W x 1 @ 1 ohm
• Total Peak Power: 2000W
• Variable Low Pass Filter
• Dimensions: 9.8" W x 14.7" L x 2.4" H

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• RMS Power: 700W x 1 @ 4 ohm, 1400W x 1 @ 2 ohm, 2000W x 1 @ 1 ohm
• Total Peak Power: 2000W
• Variable Low Pass Filter
• Dimensions: 9.8" W x 14.7" L x 2.4" H

5000W Boss PH5000D and 0-Gauge Wiring Kit Package

5000W Max Phantom Series Class D Monoblock Power Amplifier + 0/1 Gauge Wiring Kit with RCA Cables

PH5000D_BAK02 big DISCONTINUED
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5000W Boss PH5000D and 0-Gauge Wiring Kit Package

5000W Max Phantom Series Class D Monoblock Power Amplifier + 0/1 Gauge Wiring Kit with RCA Cables

• 1 ohm: 5000 watts x 1 chan.
• RMS power output: 1800 watts x 1 chan.
• Wired remote subwoofer level control
• Nickel-plated speaker and power terminals
• Subsonic Filter
• 1/0 Gauge Complete 2-Channel Amplifier Installation Kit

87

• 1 ohm: 5000 watts x 1 chan.
• RMS power output: 1800 watts x 1 chan.
• Wired remote subwoofer level control
• Nickel-plated speaker and power terminals
• Subsonic Filter
• 1/0 Gauge Complete 2-Channel Amplifier Installation Kit

EXCLUSIVE

Kicker ZX750.1 (10ZX750.1) + Amplifier Kit

750W RMS, Class D Monoblock ZX Series Amplifier with Included 4 AWG Amplifier Kit (ZX7501)

10ZX750.1_ISPKBL4-BG big DISCONTINUED
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Kicker ZX750.1 (10ZX750.1) + Amplifier Kit

750W RMS, Class D Monoblock ZX Series Amplifier with Included 4 AWG Amplifier Kit (ZX7501)

ZX Series Class D Monoblock Car Amplifier • 375W x 1 chan. @ 4 ohm • 750W x 1 chan. @ 2 ohm • Balanced Differential Inputs • Muting Circuit • Optional Vinyl Skins For Personalization • Included 4 AWG Amplifier Kit

ZX Series Class D Monoblock Car Amplifier • 375W x 1 chan. @ 4 ohm • 750W x 1 chan. @ 2 ohm • Balanced Differential Inputs • Muting Circuit • Optional Vinyl Skins For Personalization • Included 4 AWG Amplifier Kit

Kicker KXA800.1 (44KXA8001) + Free Amp Kit

800W RMS KXA Class-D Monoblock 1-Ohm Stable Amplifier with Remote Level Control

44KXA8001, XKIT42 big DISCONTINUED
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Kicker KXA800.1 (44KXA8001) + Free Amp Kit

800W RMS KXA Class-D Monoblock 1-Ohm Stable Amplifier with Remote Level Control

• 400 Watts RMS x 1 @ 4 ohm
•800 Watts RMS x 1 @ 2 ohm
• CEA-2006 Compliant
• SHOCwave Bass Restoration Processor
• Aluminum Heatsink
• Dimensions: 8-5/16" W x 9-9/16" L x 2-1/8" H

128

• 400 Watts RMS x 1 @ 4 ohm
•800 Watts RMS x 1 @ 2 ohm
• CEA-2006 Compliant
• SHOCwave Bass Restoration Processor
• Aluminum Heatsink
• Dimensions: 8-5/16" W x 9-9/16" L x 2-1/8" H

EXCLUSIVE

Kicker ZX2500.1 (08ZX2500.1) + Amplifier Kit

2500W RMS, Class D Monoblock ZX Series Amplifier (ZX25001) w/ 1/0 Gauge Amplifier Kit

08ZX2500.1_09PKD1 big DISCONTINUED
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Kicker ZX2500.1 (08ZX2500.1) + Amplifier Kit

2500W RMS, Class D Monoblock ZX Series Amplifier (ZX25001) w/ 1/0 Gauge Amplifier Kit

ZX Series Class D Monoblock Car Amplifier • 1250W x 1 chan. @ 4 ohm • 2500W x 1 chan. @ 2 ohm • Balanced differential inputs make KICKER ZX Amplifiers compatible with any factory radios

35

ZX Series Class D Monoblock Car Amplifier • 1250W x 1 chan. @ 4 ohm • 2500W x 1 chan. @ 2 ohm • Balanced differential inputs make KICKER ZX Amplifiers compatible with any factory radios

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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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    Shop your 2005 A4
    Why Use a Vehicle Fit Guide?
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    Modern vehicles often require specific brackets, wiring harnesses, and mounting solutions. A fit guide ensures:

    • You see only parts engineered for your exact vehicle
    • You avoid incompatible radios, speakers, or wiring
    • Installation is smoother, faster, and frustration-free
    • You get the correct accessories the first time

    Whether you're replacing a factory stereo or upgrading your entire audio system, the Fit Finder eliminates uncertainty.

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