Garage
Shop
Account Icon
Account
Box Icon
Track
order
Telephone Icon
Call
Help Icon
Help
Door with Arrow Icon
Sign In
  1. Home
  2. Discontinued Car Audio & Electronics
  3. Discontinued Car Amplifiers
  4. Discontinued Class-D Amplifiers

Discontinued Class-D Amplifiers

Filters
Like New & Used ✕
Clear Filters
Reset Done
Product Type
Price Range
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.
V Series (30)
SALT Series (24)
X Series (24)
XDM Series (24)
Prime Series (23)
RD Series (22)
SFB Series (22)
Brutus Series (21)
JD Series (18)
Zeus Series (18)
N Series (17)
HD Series (16)
JAD Series (14)
CX Series (13)
VXi Series (13)
S Series (12)
Machete Series (10)
N-Series (10)
SAEv4 Series (10)
V Power Series (10)
Venezia Series (10)
Slash v3 Series (9)
Brutus X 14 Series (8)
GM Digital Series (8)
HCP Series (8)
Marine V Series (8)
Power Pack Series (8)
PowerZone Series (8)
Kappa Series (7)
R-Series (7)
GS Series (6)
GTO Series (6)
Mt. Olympus Series (6)
Reference Series (6)
XD-v2 Series (6)
AXL Series (5)
BB Series (5)
DPower Series (5)
GM Series (5)
Mille Power Series (5)
MSA Series (5)
Power One Series (5)
XQ Series (5)
Apocalypse Atom Pro Series (4)
DSP Series (4)
KX Series (4)
ONYX Series (4)
PDX Series (4)
SPL Show Series (4)
XC-Series (4)
Anarchy Series (3)
BAMF Series (3)
BD Series (3)
BX Series (3)
Club Series (3)
Consumer Line Series (3)
Evolution Series (3)
eXcelon Series (3)
iON Series (3)
JX Series (3)
MX Series (3)
Phantom Series (3)
SAE Series (3)
SPL (3)
VFL Series (3)
Alpha Series (2)
APMI Series (2)
DS Series (2)
HMS Series (2)
KXM Series (2)
MOJO Pro Series (2)
MVi Series (2)
Nano Edge Series (2)
Opti Drive Series (2)
Performance Series (2)
Prime R2 Series (2)
Reaper Series (2)
Status Series (2)
Street Edge Series (2)
Stroker Pro Series (2)
Tarantula Series (2)
The Epicenter Series (2)
Thunder Series (2)
WCC Series (2)
Apocalypse Sport Series (1)
Big Bang Series (1)
Black Ice Series (1)
Bomber Series (1)
Brutus BG Series (1)
Champion Series (1)
Chaos EXXtreme Series (1)
COLOSSUS Series (1)
CompVT Series (1)
Crypt Series (1)
D Series (1)
DX Series (1)
Edge Series (1)
Formula Series (1)
Gen-X (1)
Ground Pounder Series (1)
HED Series (1)
HX Series (1)
Kappa Perfect Series (1)
Low Profile Series (1)
MD Series (1)
Mean Machine Series (1)
Overdrive Series (1)
Power Reference (1)
Primo Series (1)
Punch BR Series (1)
Punch Series (1)
Razor Series (1)
Salt Water Series (1)
SIA Series (1)
SixFive Series (1)
Smart Series (1)
Stealth Bomber Series (1)
TS Series (1)
USX Series (1)
WET Series (1)
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.
Deals
Promotions we have offer More Ways to Shop for items that are on clearance, last chance, special offer and sales, Made in America, and more!
Condition
Like New & Used,

Shop the Category

filter-icon Filters & Sort
You are currently viewing discontinued products.

Autotek SS1900.1D R/B

Class D Monoblock Super Sport Series Amplifier

SS1900.1D-RB big DISCONTINUED
Go to item page Right Arrow Icon of Right Arrow

Autotek SS1900.1D R/B

Class D Monoblock Super Sport Series Amplifier

Super Sport Monoblock Class D Car Amplifier • 1000W RMS x 1 Chan. @ 4 ohm • 1900W RMS x 1 Chan. @ 1 ohm • MOSFET Power supply • Adjustable bass EQ • Adjustable low-pass filter • Variable subsonic filter

Super Sport Monoblock Class D Car Amplifier • 1000W RMS x 1 Chan. @ 4 ohm • 1900W RMS x 1 Chan. @ 1 ohm • MOSFET Power supply • Adjustable bass EQ • Adjustable low-pass filter • Variable subsonic filter

SoundStorm (SSL) EV4000D - Open Box, Good Condition (Used)

4000W Max, Evolution Series Class D Monoblock Power Amplifier Open Box Complete (Good, Used)

EV4000D big DISCONTINUED
Go to item page Right Arrow Icon of Right Arrow

SoundStorm (SSL) EV4000D - Open Box, Good Condition (Used)

4000W Max, Evolution Series Class D Monoblock Power Amplifier Open Box Complete (Good, Used)

• RMS: 1600W x 1 @ 4 ohm
• Peak: 3000W x 1 @ 2 ohm, 4000W x 1 @ 1 ohm
• Wired Bass Level Remote
• Bass Boost: 0-18 dB
• DataLink Cable for Connecting Two Evolution Amps
• Dimensions: 10"D x 15"W x 2-3/8"H

• RMS: 1600W x 1 @ 4 ohm
• Peak: 3000W x 1 @ 2 ohm, 4000W x 1 @ 1 ohm
• Wired Bass Level Remote
• Bass Boost: 0-18 dB
• DataLink Cable for Connecting Two Evolution Amps
• Dimensions: 10"D x 15"W x 2-3/8"H

Lanzar OPTI4000D Open Box, Very Good Condition (Used)

4000W RMS, Monoblock Class D OptiDrive Series Car Amplifier

OPTI4000D big DISCONTINUED
Go to item page Right Arrow Icon of Right Arrow

Lanzar OPTI4000D Open Box, Very Good Condition (Used)

4000W RMS, Monoblock Class D OptiDrive Series Car Amplifier

• Open Box Complete
• RMS: 2000W x 1 @ 4 ohm, 3000W x 1 @ 2 ohm, 4000W x 1 @ 1 ohm
• Total RMS Power: 4000W
• Class D Circuitry
• Bass Boost: 0-18 dB
• 1 Pair of Preamp Outputs
• Dimensions: 23-1/3"L x 10-11/16"W x 2-1/8"H

• Open Box Complete
• RMS: 2000W x 1 @ 4 ohm, 3000W x 1 @ 2 ohm, 4000W x 1 @ 1 ohm
• Total RMS Power: 4000W
• Class D Circuitry
• Bass Boost: 0-18 dB
• 1 Pair of Preamp Outputs
• Dimensions: 23-1/3"L x 10-11/16"W x 2-1/8"H

Sony XM-GS6DSP (Open Box, Complete)

780W RMS GS Series 2-ohm Stable 5/6 Channel Class-D Amplifier with Digital Signal Processor

XM-GS6DSP big DISCONTINUED
Go to item page Right Arrow Icon of Right Arrow

Sony XM-GS6DSP (Open Box, Complete)

780W RMS GS Series 2-ohm Stable 5/6 Channel Class-D Amplifier with Digital Signal Processor

• 45W x 4 chan., 90W x 2 (Sub channel) @ 4 ohm
• 175W x 2 (Subwoofer), 600W x 1 @ 2 ohm
• Total Peak Power: 780 Watts
• CTA2006 Compliant
• Built-In Digital Signal Processor
• Control Settings and Stream Music via Bluetooth
• Dimensions: 11-5/8" W x 7-7/8" L x 2-1/8" H

• 45W x 4 chan., 90W x 2 (Sub channel) @ 4 ohm
• 175W x 2 (Subwoofer), 600W x 1 @ 2 ohm
• Total Peak Power: 780 Watts
• CTA2006 Compliant
• Built-In Digital Signal Processor
• Control Settings and Stream Music via Bluetooth
• Dimensions: 11-5/8" W x 7-7/8" L x 2-1/8" H

Massive Audio D 3600 Like New, Demo Product

3600W Max 1 Channel Monoblock D Block Series Car Amplifier

D 3600 big DISCONTINUED
Go to item page Right Arrow Icon of Right Arrow

Massive Audio D 3600 Like New, Demo Product

3600W Max 1 Channel Monoblock D Block Series Car Amplifier

Like new Damaged Package
• RMS: 650W x 1 @ 4 ohm, 950W x 1 @ 2 ohm, 1800W x 1 @ 1 ohm
• Total Peak Power: 3600W
• CEA-2006 Compliant
• Bass Boost: 0-12 dB
• Linkable with RCA
• Dimensions: 14-13/16"L x 6-1/2"W x 2-1/8"H

Like new Damaged Package
• RMS: 650W x 1 @ 4 ohm, 950W x 1 @ 2 ohm, 1800W x 1 @ 1 ohm
• Total Peak Power: 3600W
• CEA-2006 Compliant
• Bass Boost: 0-12 dB
• Linkable with RCA
• Dimensions: 14-13/16"L x 6-1/2"W x 2-1/8"H

Pioneer GM-D9605 - Damaged Packaging Only (New)

2000W Max 5 Channel GM Digital Champion Series Class D Amplifier

GM-D9605 big DISCONTINUED
Go to item page Right Arrow Icon of Right Arrow

Pioneer GM-D9605 - Damaged Packaging Only (New)

2000W Max 5 Channel GM Digital Champion Series Class D Amplifier

• 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

• 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

Hifonics BRZ1200.1D - Open Box, Acceptable Condition (Used)

1200W RMS Brutus Series 1-Channel Monoblock Super Class D Amplifier (BRZ 1200.1D) Open Box Complete (Acceptable, Used)

BRZ1200.1D big DISCONTINUED
Go to item page Right Arrow Icon of Right Arrow

Hifonics BRZ1200.1D - Open Box, Acceptable Condition (Used)

1200W RMS Brutus Series 1-Channel Monoblock Super Class D Amplifier (BRZ 1200.1D) Open Box Complete (Acceptable, Used)

• FEATURE 1
• FEATURE 2
• FEATURE 3
• FEATURE 4
• FEATURE 5
• FEATURE 6
• FEATURE 7

• FEATURE 1
• FEATURE 2
• FEATURE 3
• FEATURE 4
• FEATURE 5
• FEATURE 6
• FEATURE 7

JL Audio Class-D 5-Channel RD900/5 - Open Box, Very Good Condition Used

900W RMS RD-Series NexD™ Class-D 5-Channel Amplifier

RD900/5 big DISCONTINUED
Go to item page Right Arrow Icon of Right Arrow

JL Audio Class-D 5-Channel RD900/5 - Open Box, Very Good Condition Used

900W RMS RD-Series NexD™ Class-D 5-Channel Amplifier

• 75 watts x 4 chan. + 250 watts x 1 chan. @ 4 ohm
• 100 watts x 4 chan. + 500 watts x 1 chan. @ 2 ohm
• Total Peak Power: 1800 Watts
• Variable Bass Boost: 0 to +12 dB bass boost at 45 Hz
• Heavy duty aluminum alloy heat-sink
• 7"W x 14-11/16"L x 2-3/16"H

• 75 watts x 4 chan. + 250 watts x 1 chan. @ 4 ohm
• 100 watts x 4 chan. + 500 watts x 1 chan. @ 2 ohm
• Total Peak Power: 1800 Watts
• Variable Bass Boost: 0 to +12 dB bass boost at 45 Hz
• Heavy duty aluminum alloy heat-sink
• 7"W x 14-11/16"L x 2-3/16"H

SKAR Audio T-2000.1D Open Box Complete

2000W RMS Monoblock Class D T-Series Car Amplifier

T-2000.1D big DISCONTINUED
Go to item page Right Arrow Icon of Right Arrow

SKAR Audio T-2000.1D Open Box Complete

2000W RMS Monoblock Class D T-Series Car Amplifier

• Item Condition: Open Box Complete
• RMS: 50W x 1 @ 4 ohm, 1000W x 1 @ 2 ohm, 2000W x 1 @ 1 ohm
• Total RMS Power: 2000W
• 1 Pair of Preamp Outputs
• Dimensions: 9-7/8"W x 18-15/16"L x 2-1/16"H

• Item Condition: Open Box Complete
• RMS: 50W x 1 @ 4 ohm, 1000W x 1 @ 2 ohm, 2000W x 1 @ 1 ohm
• Total RMS Power: 2000W
• 1 Pair of Preamp Outputs
• Dimensions: 9-7/8"W x 18-15/16"L x 2-1/16"H

JL Audio XDM1000/5 (Open Box, Good)

1000W RMS Class D XDM Series 5 Channel Car and Marine Amplifier

XDM1000/5 big DISCONTINUED
Go to item page Right Arrow Icon of Right Arrow

JL Audio XDM1000/5 (Open Box, Good)

1000W RMS Class D XDM Series 5 Channel Car and Marine Amplifier

• 75 watts x 4 channel + 400 watts x 1 channel @ 4 ohm
• 100 watts x 4 channel + 600 watts x 1 channel @ 2 ohm
• Bridged: 200 watts x 2 channel @ 4 ohm + 600 watts x 1 channel @ 2 ohm
• Total RMS Power: 1000 watts
• Class D 2 ohm Stable 5-Channel Amplifier

• 75 watts x 4 channel + 400 watts x 1 channel @ 4 ohm
• 100 watts x 4 channel + 600 watts x 1 channel @ 2 ohm
• Bridged: 200 watts x 2 channel @ 4 ohm + 600 watts x 1 channel @ 2 ohm
• Total RMS Power: 1000 watts
• Class D 2 ohm Stable 5-Channel Amplifier

Kicker KX200.2 (40KX200.2) Open Box Complete

200W RMS KX Series 2-Channel Class D-IC Stereo Bridgeable Car Power Amplifier (KX2002)

KX200.2-3 big DISCONTINUED
Go to item page Right Arrow Icon of Right Arrow

Kicker KX200.2 (40KX200.2) Open Box Complete

200W RMS KX Series 2-Channel Class D-IC Stereo Bridgeable Car Power Amplifier (KX2002)

• 50W x 2 Chan. @ 4 ohm
• 100W x 2 Chan. @ 2 ohm
• Bridged: 200W x 1 Chan. @ 4 ohm
• 3-Way System Protection
• Single Channel Operation
• 4 Gauge Power and Ground Inputs
• Stylish Magnetic Panel Covers Tuning Options for Clean Install

1

• 50W x 2 Chan. @ 4 ohm
• 100W x 2 Chan. @ 2 ohm
• Bridged: 200W x 1 Chan. @ 4 ohm
• 3-Way System Protection
• Single Channel Operation
• 4 Gauge Power and Ground Inputs
• Stylish Magnetic Panel Covers Tuning Options for Clean Install

NVX JAD900.5 (Factory Refurbished)

True 800W RMS, Full Range Class D 5-Channel Amplifier with Bass Remote (JAD-900.5)

JAD900.5 big DISCONTINUED
Go to item page Right Arrow Icon of Right Arrow

NVX JAD900.5 (Factory Refurbished)

True 800W RMS, Full Range Class D 5-Channel Amplifier with Bass Remote (JAD-900.5)

Class D 5-Channel Amplifier with Bass Remote • 4 ohm: 70 watts x 4 chan. + 210 x 1 chan. • 2 ohm: 105 watts x 4 chan. + 380 x 1 chan. • Bridged, 4 ohm: 210 watts x 2 chan. + 380 x 1 chan. • 5/4/3 Channel Operation

3

Class D 5-Channel Amplifier with Bass Remote • 4 ohm: 70 watts x 4 chan. + 210 x 1 chan. • 2 ohm: 105 watts x 4 chan. + 380 x 1 chan. • Bridged, 4 ohm: 210 watts x 2 chan. + 380 x 1 chan. • 5/4/3 Channel Operation

Hifonics BRX2400.1D (Brutus BRX-2400.1D) (Factory Refurbished)

2400W RMS Class NextGen Super-D Monoblock Brutus Series Amplifier

BRX2400.1D big DISCONTINUED
Go to item page Right Arrow Icon of Right Arrow

Hifonics BRX2400.1D (Brutus BRX-2400.1D) (Factory Refurbished)

2400W RMS Class NextGen Super-D Monoblock Brutus Series Amplifier

• Item Condition: Factory Refurbished
• RMS: 850W x 1 @ 4 ohm, 1600W x 1 @ 2 ohm, 2400W x 1 @ 1 ohm
• Total RMS Power: 2400W
• CEA-2006 Compliant
• Bass Boost: 0-10 dB at 40 Hz
• Aluminum Alloy Heatsink with Illuminated Hifonics Logo
• Dimensions: 18-11/16"L x 10-5/16"W x 2-1/2"H

Promo Savings Icon
1

• Item Condition: Factory Refurbished
• RMS: 850W x 1 @ 4 ohm, 1600W x 1 @ 2 ohm, 2400W x 1 @ 1 ohm
• Total RMS Power: 2400W
• CEA-2006 Compliant
• Bass Boost: 0-10 dB at 40 Hz
• Aluminum Alloy Heatsink with Illuminated Hifonics Logo
• Dimensions: 18-11/16"L x 10-5/16"W x 2-1/2"H

Belva BB5000D (Factory Refurbished)

3000W RMS Class D Monoblock BB Series Car Amplifier

BB5000D-RB big DISCONTINUED
Go to item page Right Arrow Icon of Right Arrow

Belva BB5000D (Factory Refurbished)

3000W RMS Class D Monoblock BB Series Car Amplifier

• RMS: 1200W x 1 @ 4 ohm, 1800W x 1 @ 2 ohm, 3000W x 1 @ 1 ohm
• Total Peak Power: 5000W
• 1 Pair of Preamp Outputs
• Bass Boost 0-12 dB from 30-80 Hz
• Subsonic Filter from 20-50 Hz
• Dimensions: 20-3/8"W x 8-1/4"D x 2-1/4"H

3

• RMS: 1200W x 1 @ 4 ohm, 1800W x 1 @ 2 ohm, 3000W x 1 @ 1 ohm
• Total Peak Power: 5000W
• 1 Pair of Preamp Outputs
• Bass Boost 0-12 dB from 30-80 Hz
• Subsonic Filter from 20-50 Hz
• Dimensions: 20-3/8"W x 8-1/4"D x 2-1/4"H

Sound Storm Labs (SSL) EV5000D [Refurbished]

5000W Peak Evolution Series Class-D Monoblock 1-Ohm Stable Amplifier

EV5000D big DISCONTINUED
Go to item page Right Arrow Icon of Right Arrow

Sound Storm Labs (SSL) EV5000D [Refurbished]

5000W Peak Evolution Series Class-D Monoblock 1-Ohm Stable Amplifier

• RMS: 1800W x 1 @ 4 ohm, 2500W x 1 @ 2 ohm
• Peak: 2200W x 1 @ 4 ohm, 3500W x 1 @ 2 ohm, 5000W x 1 @ 1 ohm
• Wired Bass Level Remote
• Bass Boost: 0-18 dB
• DataLink Cable for Connecting Two Evolution Amps
• Dimensions: 10"D x 19-1/2"W x 2-3/8"H

• RMS: 1800W x 1 @ 4 ohm, 2500W x 1 @ 2 ohm
• Peak: 2200W x 1 @ 4 ohm, 3500W x 1 @ 2 ohm, 5000W x 1 @ 1 ohm
• Wired Bass Level Remote
• Bass Boost: 0-18 dB
• DataLink Cable for Connecting Two Evolution Amps
• Dimensions: 10"D x 19-1/2"W x 2-3/8"H

Alpine PDX-5 Open Box

(Open Box) 600W RMS, Class D 5-Channel PDX Series Amplifier

PDX-5 big DISCONTINUED
Go to item page Right Arrow Icon of Right Arrow

Alpine PDX-5 Open Box

(Open Box) 600W RMS, Class D 5-Channel PDX Series Amplifier

PDX Series 5-Channel Class D Car Amplifier • 75W x 4 chan. + 300W x 1 chan. @ 4 ohm • 75W x 4 chan. + 300W x 1 chan. @ 2 ohm • 150W x 2 chan. + 300W x 1 chan. @ 4 ohm • Stackable operation allows for multi-amplifier setup

PDX Series 5-Channel Class D Car Amplifier • 75W x 4 chan. + 300W x 1 chan. @ 4 ohm • 75W x 4 chan. + 300W x 1 chan. @ 2 ohm • 150W x 2 chan. + 300W x 1 chan. @ 4 ohm • Stackable operation allows for multi-amplifier setup

NVX VADM4 (Like New)

400W RMS Full Range Class D 4-Channel Car/Marine/Powersports Amplifier

VADM4v2 big DISCONTINUED
Go to item page Right Arrow Icon of Right Arrow

NVX VADM4 (Like New)

400W RMS Full Range Class D 4-Channel Car/Marine/Powersports Amplifier

• 400 Watt True RMS Output!
• Marine Certified 4-Channel Micro Class D Amplifier
• 75W x 4-Chan. @ 4 ohm
• 100W x 4-Chan. @ 2 ohm
• 3-Way System Protection
• 4/2 Channel Operation
• 8 Gauge Power and Ground Inputs
• Extremely Small Footprint!

• 400 Watt True RMS Output!
• Marine Certified 4-Channel Micro Class D Amplifier
• 75W x 4-Chan. @ 4 ohm
• 100W x 4-Chan. @ 2 ohm
• 3-Way System Protection
• 4/2 Channel Operation
• 8 Gauge Power and Ground Inputs
• Extremely Small Footprint!

NVX BDA7501 (Like New)

True 1500W Peak (750W RMS) Monoblock Class D 2-Ohm Stable Amplifier

BDA7501 big DISCONTINUED
Go to item page Right Arrow Icon of Right Arrow

NVX BDA7501 (Like New)

True 1500W Peak (750W RMS) Monoblock Class D 2-Ohm Stable Amplifier

• True RMS Power: 450W x 1 @ 4 ohm, 750W x 1 @ 2 ohm
• CEA-2006 Compliant
• Dimensions: 7" W x 9.75" L x 2" H

• True RMS Power: 450W x 1 @ 4 ohm, 750W x 1 @ 2 ohm
• CEA-2006 Compliant
• Dimensions: 7" W x 9.75" L x 2" H

Hifonics HFi2500D (Factory Refurbished)

2500W RMS, Class D Monoblock HFi Series Amplifier (HFi 2500D)

HFi2500D-RB big DISCONTINUED
Go to item page Right Arrow Icon of Right Arrow

Hifonics HFi2500D (Factory Refurbished)

2500W RMS, Class D Monoblock HFi Series Amplifier (HFi 2500D)

HFi Series Monoblock Class D Car Amplifier • 1700W x 1-Chan. @ 2 Ohm • 2500W x 1-Chan. @ 1 Ohm • Wired HFR-3 Bass Remote • 4-Way System Protection Circuitry • Preamp RCA Outputs • Blue Illuminated Hifonics Badge

HFi Series Monoblock Class D Car Amplifier • 1700W x 1-Chan. @ 2 Ohm • 2500W x 1-Chan. @ 1 Ohm • Wired HFR-3 Bass Remote • 4-Way System Protection Circuitry • Preamp RCA Outputs • Blue Illuminated Hifonics Badge

Kicker DXA 250.1 (43DXA2501) Open Box Complete

250W Max (125W RMS) DX-Series Monoblock Subwoofer Amplifier

43DXA2501 big DISCONTINUED
Go to item page Right Arrow Icon of Right Arrow

Kicker DXA 250.1 (43DXA2501) Open Box Complete

250W Max (125W RMS) DX-Series Monoblock Subwoofer Amplifier

• RMS Power: 125W x 1 @ 4 ohm, 250W x 1 @ 2 ohm
• Signal to Noise Ratio: >95dB
• CEA-2006 Compliant
• >Dimensions: 8-1/8" W x 7-3/16" D x 2-3/8" H

3

• RMS Power: 125W x 1 @ 4 ohm, 250W x 1 @ 2 ohm
• Signal to Noise Ratio: >95dB
• CEA-2006 Compliant
• >Dimensions: 8-1/8" W x 7-3/16" D x 2-3/8" H

Prev 5 6 7 8 9 Next

Items per page: 20 40 60

    Clear all

    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.
    why-shoping-with-sonic

    We love people and we're ready to help you! See what separates us from our competition.

    Take advantage of our VIP rewards like 10% back on your purchases, free 2-day shipping, extended warranties, and free returns! Gain access to all of these rewards without any membership fees.
    Get great discounted (and possibly FREE) installation accessories with most car stereo purchases. This includes dash kits, wiring harnesses and antenna adapters that you will need to properly install your new car stereo.
    We are an Authorized Dealer for all the brands we sell, including the most premium brands in car and marine audio such as Hertz, JL Audio, NVX, Rockford Fosgate, Kicker, Alpine, Kenwood and many more.
    Shop Deals and get up to 30% off premium brands! Shop Now! We are always looking out for the best products and deals to offer our customers. Don’t pay too much by shopping elsewhere!
    We have information on brands, gear, and more for you to explore! Check out our YouTube Channel for helpful how-to videos, product reviews, and Q&As. For a more detailed look, also visit our Learning Center!
    Our trained experts are here to assist you! They are just a phone call or click away to help you get the right gear for you and your vehicle!
    Why Shop With Us?
    Save up to 10 different vehicles in your garage
    Vehicle
    Store     Delete

    2016 Lincoln MKC

    2002 Daewoo Nubira

    2013 BMW X3

    2002 Ford F-150

    1969 Mercury Comet

    2007 Nissan Pathfinder

    1982 GMC G Series

    2015 Dodge Durango

    2023 BMW X1

    2001 Chrysler Concorde

    Add vehicle Clear all vehicles
    Where to find vehicle info
    Are you sure you want to clear your garage?
    This action cannot be undone. Confirm

    Cancel

    This category was not designed for products.
    If you continue, you will be redirected to a category customized for your vehicle. Continue

    Cancel

    Shop your 2016 MKC
    Why Use a Vehicle Fit Guide?
    Change vehicle | Shop without vehicle
    Whoa! Slow down. Add your details below!
    additional information required
    Add vehicle details to confirm fitment
    Ignore fitment details
    Find stereos and more that work -- fast.

    Additional information:

    Remove

    Can't find your vehicle? Click here and we'll help.

    Where to find vehicle info

    Go to Fitment

    Didn't find your car?

    Submit your details and we'll help!
    Please enter the letters as they are shown in the image above. Letters are not case-sensitive.
    Identify your vehicle and submodel details
    • Owner's manual
    • Vehicle's insurance card
    • Vehicle registration
    • Vehicle produced after 2005: Inside driver's side door
    • Vehicle produced before 2005: Rear passenger doorjamb, glove box, center console, or engine compartment
    Car Info Side Door Icon
    Vehicle Registration Icon
    Vehicle Insurance Icon
    Back

    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.

    Back
    Track your order
    Call our experts
    Support Center
    Return & Exchanges
    Follow on Instagram Instagram logo
    Subscribe on YouTube YouTube logo