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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 (70)
Zeus Series (56)
X Series (39)
V Series (30)
Prime Series (28)
CX Series (27)
N Series (26)
XDM Series (26)
SALT Series (24)
SFB Series (22)
HD Series (21)
RD Series (21)
JAD Series (20)
Kappa Series (19)
KX Series (19)
Phantom Series (18)
Reference Series (17)
JD Series (16)
MD Series (16)
S Series (16)
XD-v2 Series (16)
ONYX Series (15)
Picasso-Nano Series (14)
V Power Series (14)
VXi Series (14)
Brutus X 14 Series (13)
Marine V Series (13)
N-Series (13)
Razor Series (13)
Slash v3 Series (13)
GM Digital Series (12)
Machete Series (12)
Apocalypse Series (11)
BAMF Series (11)
HCP Series (11)
Mt. Olympus Series (11)
Tarantula Series (11)
VC Series (11)
Bass Series (10)
Black Ice Series (10)
iON Series (10)
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SAEv4 Series (10)
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Power Pack Series (8)
Power Reference (8)
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DS Series (7)
DX Series (7)
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PowerZone 2 Series (7)
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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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Condition

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You are currently viewing discontinued products.

Sundown Audio SAM-600D (Open Box, Great)

600W RMS Class D Monoblock Powersport Amplifier

SAM-600D big DISCONTINUED
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Sundown Audio SAM-600D (Open Box, Great)

600W RMS Class D Monoblock Powersport Amplifier

• 230 watts x 1 channel @ 4 ohm
• 415 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

• 230 watts x 1 channel @ 4 ohm
• 415 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

Sundown Audio SALT-2000.6 (Open Box, Like New)

2000W RMS Class D SALT Series 6-Channel Full Range Car Amplifier

SALT-2000.6 big DISCONTINUED
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Sundown Audio SALT-2000.6 (Open Box, Like New)

2000W RMS Class D SALT Series 6-Channel Full Range Car Amplifier

• 100 watts x 2 channel + 150 watts x 2 channel (3&4) @ 4 ohm
• 200 watts x 2 channel + 250 watts x 2 channel (3&4) @ 2 ohm
• 550 watts x 2 channel @ 1 ohm
• Total RMS Power: 2000 watts
• Class D 1 ohm Stable 6-Channel Amplifier

• 100 watts x 2 channel + 150 watts x 2 channel (3&4) @ 4 ohm
• 200 watts x 2 channel + 250 watts x 2 channel (3&4) @ 2 ohm
• 550 watts x 2 channel @ 1 ohm
• Total RMS Power: 2000 watts
• Class D 1 ohm Stable 6-Channel Amplifier

JL Audio RD400/4 (Open Box, Like New)

400W RMS Class D RD Series 4 Channel Car Amplifier

RD400/4 big DISCONTINUED
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JL Audio RD400/4 (Open Box, Like New)

400W RMS Class D RD Series 4 Channel Car Amplifier

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

28

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

JL Audio RD900/5 (Open Box, Like New)

900W RMS Class D RD Series 5 Channel Car Amplifier

RD900/5 big DISCONTINUED
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JL Audio RD900/5 (Open Box, Like New)

900W RMS Class D RD Series 5 Channel Car Amplifier

• 70 watts x 4 channel + 225 watts x 1 channel @ 4 ohm
• 100 watts x 4 channel + 500 watts x 1 channel @ 2 ohm
• Bridged: 200 watts x 2 channel @ 4 ohm + 500 watts x 1 channel @ 2 ohm
• Total RMS Power: 900 watts
• Class D 2 ohm Stable 5-Channel Amplifier

4

• 70 watts x 4 channel + 225 watts x 1 channel @ 4 ohm
• 100 watts x 4 channel + 500 watts x 1 channel @ 2 ohm
• Bridged: 200 watts x 2 channel @ 4 ohm + 500 watts x 1 channel @ 2 ohm
• Total RMS Power: 900 watts
• Class D 2 ohm Stable 5-Channel Amplifier

JL Audio MV400/4i - New (Damaged Packaging, Product A+)

400W RMS Class D MVi Series 4 Channel Marine Amplifier with DSP

MV400/4i big DISCONTINUED
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JL Audio MV400/4i - New (Damaged Packaging, Product A+)

400W RMS Class D MVi Series 4 Channel Marine Amplifier with DSP

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

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

Hertz DPower 4 (Open Box, Great)

600W Peak (300W RMS) Class D DPower Series 4-Channel Full Range Car Amplifier

DPower 4 big DISCONTINUED
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Hertz DPower 4 (Open Box, Great)

600W Peak (300W RMS) Class D DPower Series 4-Channel Full Range Car Amplifier

• 50 watts x 4 channel @ 4 ohm
• 65 watts x 4 channel @ 2 ohm
• Bridged: 130 watts x 2 channel @ 4 ohm
• Total RMS Power: 300 watts
• Class D 2 ohm Stable 4-Channel-Channel Amplifier

1

• 50 watts x 4 channel @ 4 ohm
• 65 watts x 4 channel @ 2 ohm
• Bridged: 130 watts x 2 channel @ 4 ohm
• Total RMS Power: 300 watts
• Class D 2 ohm Stable 4-Channel-Channel Amplifier

Sundown Audio SALT-1.5 (Open Box, Like New)

1500W RMS Class D SALT Series Monoblock Car Amplifier

SALT-1.5 big DISCONTINUED
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Sundown Audio SALT-1.5 (Open Box, Like New)

1500W RMS Class D SALT Series Monoblock Car Amplifier

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

1

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

Hertz DPower 1 (Open-box, Like New)

600W Peak (300W RMS) Class D DPOWER Series Monoblock Car Amplifier

DPower 1 big DISCONTINUED
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Hertz DPower 1 (Open-box, Like New)

600W Peak (300W RMS) Class D DPOWER Series Monoblock Car Amplifier

• 150 watts x 1 channel @ 4 ohm
• 250 watts x 1 channel @ 2 ohm
• Total RMS Power: 300 watts
• Class D 2 ohm Stable Monoblock Amplifier

• 150 watts x 1 channel @ 4 ohm
• 250 watts x 1 channel @ 2 ohm
• Total RMS Power: 300 watts
• Class D 2 ohm Stable Monoblock Amplifier

JL Audio Slash 600/1v3 Damaged Packaging Only (New)

600W RMS Monoblock Slash v3 Series Class D Car Amplifier

600/1v3 big DISCONTINUED
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JL Audio Slash 600/1v3 Damaged Packaging Only (New)

600W RMS Monoblock Slash v3 Series Class D Car Amplifier

• Peak: 600W x 1 @ 4 ohm, 600W x 1 @ 3 ohm, 600W x 1 @ 2, 600W x 1 @ 1.5 ohm
• Total RMS Power: 600W
• R.I.P.S. Power Supply
• Parametric Bass EQ
• Fully Variable Infrasonic Filter
• Dimensions: 13.40"L x 9.25"W x 2.36"H

8

• Peak: 600W x 1 @ 4 ohm, 600W x 1 @ 3 ohm, 600W x 1 @ 2, 600W x 1 @ 1.5 ohm
• Total RMS Power: 600W
• R.I.P.S. Power Supply
• Parametric Bass EQ
• Fully Variable Infrasonic Filter
• Dimensions: 13.40"L x 9.25"W x 2.36"H

Sundown Audio SALT-2 (Open Box, Great)

2000W RMS Class D SALT Series Monoblock Car Amplifier

SALT-2 big DISCONTINUED
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Sundown Audio SALT-2 (Open Box, Great)

2000W RMS Class D SALT Series Monoblock Car Amplifier

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

1

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

Hertz DPower 1 (Open Box, Great)

600W Peak (300W RMS) Class D DPOWER Series Monoblock Car Amplifier

DPower 1 big DISCONTINUED
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Hertz DPower 1 (Open Box, Great)

600W Peak (300W RMS) Class D DPOWER Series Monoblock Car Amplifier

• 150 watts x 1 channel @ 4 ohm
• 250 watts x 1 channel @ 2 ohm
• Total RMS Power: 300 watts
• Class D 2 ohm Stable Monoblock Amplifier

• 150 watts x 1 channel @ 4 ohm
• 250 watts x 1 channel @ 2 ohm
• Total RMS Power: 300 watts
• Class D 2 ohm Stable Monoblock Amplifier

Lowest price in 30 days

Rockford Fosgate Punch PBR400X4D - New (Damaged Packaging, Product A+)

400W RMS Class D Punch Series 4 Channel Car Amplifier

PBR400X4D big DISCONTINUED
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Rockford Fosgate Punch PBR400X4D - New (Damaged Packaging, Product A+)

400W RMS Class D Punch Series 4 Channel Car Amplifier

• 50 watts RMS x 4 @ 4 ohm
• 100 watts RMS x 4 @ 2 ohm
• Total Peak Power: 400 Watts
• CEA-2006 Compliant
• C.L.E.A.N. input/output clip detection and indicator LEDs
• Compact design for stealth installations
• 4.25"W x 1.53"H x 6.75"D

3

• 50 watts RMS x 4 @ 4 ohm
• 100 watts RMS x 4 @ 2 ohm
• Total Peak Power: 400 Watts
• CEA-2006 Compliant
• C.L.E.A.N. input/output clip detection and indicator LEDs
• Compact design for stealth installations
• 4.25"W x 1.53"H x 6.75"D

Hifonics ZD-1350.4D (Open Box, Like New)

1350W Peak Class D Zeus Delta Series 4 Channel Car Amplifier

ZD-1350.4D big DISCONTINUED
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Hifonics ZD-1350.4D (Open Box, Like New)

1350W Peak Class D Zeus Delta Series 4 Channel Car Amplifier

• 170 watts x 4 channel @ 4 ohm
• 335 watts x 4 channel @ 2 ohm
• Bridged: 675 watts x 2 channel @ 4 ohm
• Class D 2 ohm Stable 4-Channel Amplifier

• 170 watts x 4 channel @ 4 ohm
• 335 watts x 4 channel @ 2 ohm
• Bridged: 675 watts x 2 channel @ 4 ohm
• Class D 2 ohm Stable 4-Channel Amplifier

Sundown Audio SFB200.4D (Open Box, Like New)

200W RMS Class D SFB Series 4 Channel Car Amplifier

A-SFBV22004 big DISCONTINUED
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Sundown Audio SFB200.4D (Open Box, Like New)

200W RMS Class D SFB Series 4 Channel Car Amplifier

• 75 watts x 4 channel @ 4 ohm
• 125 watts x 4 channel @ 2 ohm
• Bridged: @ 4 ohm
• Total RMS Power: 200 watts
• Class D 1 ohm Stable 4-Channel-Channel Amplifier

1

• 75 watts x 4 channel @ 4 ohm
• 125 watts x 4 channel @ 2 ohm
• Bridged: @ 4 ohm
• Total RMS Power: 200 watts
• Class D 1 ohm Stable 4-Channel-Channel Amplifier

JL Audio JX400/4D Open Box Complete (Very Good, Used)

400W RMS JX Series 4-Channel Class D Full-Range Amplifier

JX400/4D big DISCONTINUED
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JL Audio JX400/4D Open Box Complete (Very Good, Used)

400W RMS JX Series 4-Channel Class D Full-Range Amplifier

• Item Condition: Open Box
• Peak: 70W x 4 @ 4 ohm, 100W x 4 @ 2 ohm, 200W x 2 @ 4 ohm Bridged
• Unregulated PWM switching type power supply
• Class D Circuitry
• Defeatable 12 dB / octave filter
• Speaker-level (high-level) inputs with included harness
• Dimensions: 7.68"W x 9.05"L x 2.09"H

3

• Item Condition: Open Box
• Peak: 70W x 4 @ 4 ohm, 100W x 4 @ 2 ohm, 200W x 2 @ 4 ohm Bridged
• Unregulated PWM switching type power supply
• Class D Circuitry
• Defeatable 12 dB / octave filter
• Speaker-level (high-level) inputs with included harness
• Dimensions: 7.68"W x 9.05"L x 2.09"H

Lowest price in 30 days

Rockford Fosgate PBR400X4D (Open Box, Like New)

400W RMS Class D Punch Series 4 Channel Car Amplifier

PBR400X4D big DISCONTINUED
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Rockford Fosgate PBR400X4D (Open Box, Like New)

400W RMS Class D Punch Series 4 Channel Car Amplifier

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

3

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

Rockford Fosgate R2-750X5 (Open Box, Like New)

750W RMS Class D Prime Series 5 Channel Car Amplifier

R2-750X5 big DISCONTINUED
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Rockford Fosgate R2-750X5 (Open Box, Like New)

750W RMS Class D Prime Series 5 Channel Car Amplifier

• 50 watts x 4 channel + 200 watts x 1 channel @ 4 ohm
• 100 watts x 4 channel + 350 watts x 1 channel @ 2 ohm
• Bridged: 200 watts x 2 channel @ 4 ohm + 350 watts x 1 channel @ 2 ohm
• Total RMS Power: 750 watts
• Class D 2 ohm Stable 5-Channel-Channel Amplifier

2

• 50 watts x 4 channel + 200 watts x 1 channel @ 4 ohm
• 100 watts x 4 channel + 350 watts x 1 channel @ 2 ohm
• Bridged: 200 watts x 2 channel @ 4 ohm + 350 watts x 1 channel @ 2 ohm
• Total RMS Power: 750 watts
• Class D 2 ohm Stable 5-Channel-Channel Amplifier

Infinity INFDSP6840 - New (Damaged Packaging, Product A+)

1000W Peak (480W RMS) DSP Series Class-D 8-Channel Amplifier with Digital Signal Processing (DSP)

DSP6840AM-2 big DISCONTINUED
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Infinity INFDSP6840 - New (Damaged Packaging, Product A+)

1000W Peak (480W RMS) DSP Series Class-D 8-Channel Amplifier with Digital Signal Processing (DSP)

• 40 watts x 8 channel @ 4 ohm
• 60 watts x 8 channel @ 2 ohm
• Total RMS Power: 480 watts
• Class D 2 ohm Stable 8-Channel Amplifier

• 40 watts x 8 channel @ 4 ohm
• 60 watts x 8 channel @ 2 ohm
• Total RMS Power: 480 watts
• Class D 2 ohm Stable 8-Channel Amplifier

Hertz Venezia V4C (Open Box, Great)

760W RMS Class D Venezia Series Compact Marine Amplifier

VENEZIA V4C big DISCONTINUED
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Hertz Venezia V4C (Open Box, Great)

760W RMS Class D Venezia Series Compact Marine Amplifier

• 110 watts x 4 channel @ 4 ohm
• 190 watts x 4 channel @ 2 ohm
• Bridged: 380 watts x 2 channel @ 4 ohm
• Total RMS Power: 760 watts
• Class D 2 ohm Stable 4-Channel-Channel Amplifier

• 110 watts x 4 channel @ 4 ohm
• 190 watts x 4 channel @ 2 ohm
• Bridged: 380 watts x 2 channel @ 4 ohm
• Total RMS Power: 760 watts
• Class D 2 ohm Stable 4-Channel-Channel Amplifier

Sundown Audio SIA-5000D (Open Box, Like New)

5000W RMS Class D SFB Series Monoblock Car Amplifier

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Sundown Audio SIA-5000D (Open Box, Like New)

5000W RMS Class D SFB Series Monoblock Car Amplifier

• 3400 watts x 1 channel @ 4 ohm
• 4950 watts x 1 channel @ 2 ohm
• 5000 watts x 1 channel @ 1 ohm
• Total RMS Power: 5000 watts
• Class D 1 ohm Stable Monoblock Amplifier

3

• 3400 watts x 1 channel @ 4 ohm
• 4950 watts x 1 channel @ 2 ohm
• 5000 watts x 1 channel @ 1 ohm
• Total RMS Power: 5000 watts
• Class D 1 ohm Stable Monoblock Amplifier

Hertz HMD8 DSP (Open-box, Like New)

1040W RMS Class D Hertz Marine Series (HMS) 8-Channel Marine Amplifier with Digital Signal Processor

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Hertz HMD8 DSP (Open-box, Like New)

1040W RMS Class D Hertz Marine Series (HMS) 8-Channel Marine Amplifier with Digital Signal Processor

• 85 watts x 8 channel @ 4 ohm
• 130 watts x 8 channel @ 2 ohm
• Bridged: 260 watts x 4 channel @ 4 ohm
• Total RMS Power: 1040 watts
• Class D 2 ohm Stable 8-Channel-Channel Marine Amplifier with Digital Signal Processor

• 85 watts x 8 channel @ 4 ohm
• 130 watts x 8 channel @ 2 ohm
• Bridged: 260 watts x 4 channel @ 4 ohm
• Total RMS Power: 1040 watts
• Class D 2 ohm Stable 8-Channel-Channel Marine Amplifier with Digital Signal Processor

Sundown Audio SALT-2 (Open Box, Like New)

2000W RMS Class D SALT Series Monoblock Car Amplifier

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Sundown Audio SALT-2 (Open Box, Like New)

2000W RMS Class D SALT Series Monoblock Car Amplifier

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

1

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

Alpine KTA-30FW - New (Damaged Packaging, Product A+)

600W Peak (300W RMS) Power Pack Series Class-D 4-Channel Amplifier

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Alpine KTA-30FW - New (Damaged Packaging, Product A+)

600W Peak (300W RMS) Power Pack Series Class-D 4-Channel Amplifier

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

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

Hertz HCP 4DK (Open Box, Great)

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

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Hertz HCP 4DK (Open Box, Great)

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

1

• 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

Rockford Fosgate Prime R2-250X1 - New (Damaged Packaging, Product A+)

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

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Rockford Fosgate Prime R2-250X1 - New (Damaged Packaging, Product A+)

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

• 150 watts x 1 channel @ 4 ohm
• 250 watts x 1 channel @ 2 ohm
• Total RMS Power: 250 watts
• CEA-2006 Compliant
• Class D 2 ohm Stable Monoblock Amplifier

3

• 150 watts x 1 channel @ 4 ohm
• 250 watts x 1 channel @ 2 ohm
• Total RMS Power: 250 watts
• CEA-2006 Compliant
• Class D 2 ohm Stable Monoblock Amplifier

Lowest price in 30 days

JL Audio VX1000/1i (Open Box, Like New)

1000W RMS Class D VXi Series Monoblock Car Amplifier

VX1000/1i big DISCONTINUED
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JL Audio VX1000/1i (Open Box, Like New)

1000W RMS Class D VXi Series Monoblock Car Amplifier

• 600 watts x 1 channel @ 4 ohm
• 800 watts x 1 channel @ 3 ohm
• 1000 watts x 1 channel @ 2 ohm
• Total RMS Power: 1000 watts
• Class D 2 ohm Stable Monoblock Amplifier

1

• 600 watts x 1 channel @ 4 ohm
• 800 watts x 1 channel @ 3 ohm
• 1000 watts x 1 channel @ 2 ohm
• Total RMS Power: 1000 watts
• Class D 2 ohm Stable Monoblock Amplifier

JL Audio JD250/1 (Open Box, Like New)

250W RMS Class D JD Series Monoblock Car Amplifier

JD250/1 big DISCONTINUED
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JL Audio JD250/1 (Open Box, Like New)

250W RMS Class D JD Series Monoblock Car Amplifier

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

4

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

Sundown Audio SIA-3500D V2 (Open Box, Like New)

3500W RMS Class D SFB Series Monoblock Car Amplifier

A-SIAV23500 big DISCONTINUED
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Sundown Audio SIA-3500D V2 (Open Box, Like New)

3500W RMS Class D SFB Series Monoblock Car Amplifier

• 2600 watts x 1 channel @ 4 ohm
• 3300 watts x 1 channel @ 2 ohm
• 3500 watts x 1 channel @ 1 ohm
• Total RMS Power: 3500 watts
• Class D 1 ohm Stable Monoblock Amplifier

1

• 2600 watts x 1 channel @ 4 ohm
• 3300 watts x 1 channel @ 2 ohm
• 3500 watts x 1 channel @ 1 ohm
• Total RMS Power: 3500 watts
• Class D 1 ohm Stable Monoblock Amplifier

JL Audio JD250/1 - New (Damaged Packaging, Product A+)

250W RMS Class D JD Series Monoblock Car Amplifier

JD250/1 big DISCONTINUED
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JL Audio JD250/1 - New (Damaged Packaging, Product A+)

250W RMS Class D JD Series Monoblock Car Amplifier

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

4

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

JBL Club A600 - New (Damaged Packaging, Product A+)

1200W Peak (600W RMS) Class D Club Series Compact Monoblock Amplifier with Bass Remote

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JBL Club A600 - New (Damaged Packaging, Product A+)

1200W Peak (600W RMS) Class D Club Series Compact Monoblock Amplifier with Bass Remote

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

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

Lowest price in 30 days

JL Audio VX600/1i (Open Box, Like New)

600W RMS Class D VXi Series Monoblock Car Amplifier

VX600/1i big DISCONTINUED
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JL Audio VX600/1i (Open Box, Like New)

600W RMS Class D VXi Series Monoblock Car Amplifier

• 400 watts x 1 channel @ 4 ohm
• 500 watts x 1 channel @ 3 ohm
• 600 watts x 1 channel @ 2 ohm
• Total RMS Power: 600 watts
• Class D 2 ohm Stable Monoblock Amplifier

1

• 400 watts x 1 channel @ 4 ohm
• 500 watts x 1 channel @ 3 ohm
• 600 watts x 1 channel @ 2 ohm
• Total RMS Power: 600 watts
• Class D 2 ohm Stable Monoblock Amplifier

Sundown Audio SAEv4-1000.1D (Open Box, Like New)

1000W RMS Class D SAEv4 Series Monoblock Car Amplifier with Wired Remote Control

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Sundown Audio SAEv4-1000.1D (Open Box, Like New)

1000W RMS Class D SAEv4 Series Monoblock Car Amplifier with Wired Remote Control

• 375 watts x 1 channel @ 4 ohm
• 650 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

• 375 watts x 1 channel @ 4 ohm
• 650 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

Sundown Audio SALT-3 (Open Box, Like New)

3000W RMS Class D SALT Series Monoblock Car Amplifier

SALT-3 big DISCONTINUED
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Sundown Audio SALT-3 (Open Box, Like New)

3000W RMS Class D SALT Series Monoblock Car Amplifier

• 750 watts x 1 channel @ 4 ohm
• 1500 watts x 1 channel @ 2 ohm
• 3000 watts x 1 channel @ 1 ohm
• 6000 watts x 1 channel @ 2 ohm Bridged
• Total RMS Power: 3000 watts
• Class D 1 ohm Stable Monoblock Amplifier

1

• 750 watts x 1 channel @ 4 ohm
• 1500 watts x 1 channel @ 2 ohm
• 3000 watts x 1 channel @ 1 ohm
• 6000 watts x 1 channel @ 2 ohm Bridged
• Total RMS Power: 3000 watts
• Class D 1 ohm Stable Monoblock Amplifier

Sundown Audio SIA-1750D (Open Box, Like New)

1750W RMS Class D SFB Series Monoblock Car Amplifier

SIA-1750D big DISCONTINUED
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Sundown Audio SIA-1750D (Open Box, Like New)

1750W RMS Class D SFB Series Monoblock Car Amplifier

• 1250 watts x 1 channel @ 4 ohm
• 1750 watts x 1 channel @ 2 ohm
• 1750 watts x 1 channel @ 1 ohm
• Total RMS Power: 1750 watts
• Class D 1 ohm Stable Monoblock Amplifier

1

• 1250 watts x 1 channel @ 4 ohm
• 1750 watts x 1 channel @ 2 ohm
• 1750 watts x 1 channel @ 1 ohm
• Total RMS Power: 1750 watts
• Class D 1 ohm Stable Monoblock Amplifier

Sundown Audio SIA-1250D (Open Box, Like New)

1250W RMS Class D SFB Series Monoblock Car Amplifier

A-SIA1250 big DISCONTINUED
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Sundown Audio SIA-1250D (Open Box, Like New)

1250W RMS Class D SFB Series Monoblock Car Amplifier

• 800 watts x 1 channel @ 4 ohm
• 1250 watts x 1 channel @ 2 ohm
• 1250 watts x 1 channel @ 1 ohm
• Total RMS Power: 1250 watts
• Class D 1 ohm Stable Monoblock Amplifier

1

• 800 watts x 1 channel @ 4 ohm
• 1250 watts x 1 channel @ 2 ohm
• 1250 watts x 1 channel @ 1 ohm
• Total RMS Power: 1250 watts
• Class D 1 ohm Stable Monoblock Amplifier

Sundown Audio SIA-8000D (Open Box, Great)

8000W RMS Class D SFB Series Monoblock Car Amplifier

SIA-8000D big DISCONTINUED
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Sundown Audio SIA-8000D (Open Box, Great)

8000W RMS Class D SFB Series Monoblock Car Amplifier

• 5600 watts x 1 channel @ 4 ohm
• 7700 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

1

• 5600 watts x 1 channel @ 4 ohm
• 7700 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

JL Audio RD500/1 (Open Box, Like New)

500W RMS Class D RD Series Monoblock Car Amplifier

RD500/1 big DISCONTINUED
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JL Audio RD500/1 (Open Box, Like New)

500W RMS Class D RD Series Monoblock Car Amplifier

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

22

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

Rockford Fosgate R2-250X1 (Open Box, Like New)

250W RMS Class D Prime Series Monoblock Car Amplifier

R2-250X1 big DISCONTINUED
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Rockford Fosgate R2-250X1 (Open Box, Like New)

250W RMS Class D Prime Series Monoblock Car Amplifier

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

3

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

Sundown Audio SAM-1000D (Open Box, Like New)

1000W RMS Class D Monoblock Powersport Amplifier

SAM-1000D big DISCONTINUED
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Sundown Audio SAM-1000D (Open Box, Like New)

1000W RMS Class D Monoblock Powersport Amplifier

• 400 watts x 1 channel @ 4 ohm
• 700 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

• 400 watts x 1 channel @ 4 ohm
• 700 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

Lowest price in 30 days

JL Audio VX800/8i (Open Box, Like New)

800W RMS Class D VXi Series 8 Channel Car Amplifier

VX800/8i big DISCONTINUED
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JL Audio VX800/8i (Open Box, Like New)

800W RMS Class D VXi Series 8 Channel Car Amplifier

• 75 watts x 8 channel @ 4 ohm
• 100 watts x 8 channel @ 2 ohm
• Bridged: 200 watts x 4 channel @ 4 ohm
• Total RMS Power: 800 watts
• Class D 2 ohm Stable 8-Channel Amplifier

4

• 75 watts x 8 channel @ 4 ohm
• 100 watts x 8 channel @ 2 ohm
• Bridged: 200 watts x 4 channel @ 4 ohm
• Total RMS Power: 800 watts
• Class D 2 ohm Stable 8-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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