Garage
Shop

HD HDA4002

400W Max 2-Channel Class A/B HD Series MOSFET Car Amplifier

HD
Shop all HD
Product videos
highlight-star-icon

• 4 ohm: 50 watts x 2 chan.
• 2 ohm: 75 watts x 2 chan.
• Bridged, 4 ohm: 150 watts x 1 chan.
• Pulse Width Modulated MOSFET Power Supply

Learn more about the hda4002

We apologize

This item has been discontinued

Product Highlights


• 4 ohm: 50 watts x 2 chan.
• 2 ohm: 75 watts x 2 chan.
• Bridged, 4 ohm: 150 watts x 1 chan.
• Pulse Width Modulated MOSFET Power Supply

Description


HD brand icon

Authorized dealer

General Features:

  • 2-Channel HD Series MOSFET Car Amplifier
  • RMS Power Rating:
    • 4 ohm: 50 watts x 2 chan.
    • 2 ohm: 75 watts x 2 chan.
    • Bridged, 4 ohm: 150 watts x 1 chan.
  • Pulse Width Modulated MOSFET power supply
  • LED power (green) and protect (red) indicators
  • Variable Bass Boost (0 to +12 dB bass boost at 50 Hz)
  • Soft start turn-on
  • 2 or mono channel operation
  • Speaker-level (high-level) inputs with signal sensing for automatic turn-on
  • 3-way protection circuitry (thermal, overload, and speaker short protection)
  • Heavy duty aluminum alloy heat-sink for extreme heat dissipation
  • Nickel-plated RCA level inputs
  • Nickel-plated screw terminals
  • High-pass filter (80 Hz Fixed)
  • Variable low-pass filter (50-250 Hz, 24 dB/octave)
  • CEA-2006 compliant amplifier
  • Frequency response: 20-20000 Hz
  • 8 gauge power and ground wiring is required for installation. Contact us for information regarding a discount on select amplifier kits from our website when purchased together with this amplifier.
  • Dimensions: 9-3/4"W x 9-1/10"L x 2-1/3"H
  • Authorized Internet Dealer
  • 1-year Manufacturer's Warranty

Best selling similar products

ATOM-900.2 PRO small

Deaf Bonce Apocalypse ATOM-900.2 PRO

• 350 watts x 2 channel @ 4 ohm
• 510 watts x 2 channel @ 2 ohm
• 900 watts x 2 channel @ 1 ohm
• Bridged: 1020 watts x 1 channel @ 4 ohm
• 1000 watts @ 2 ohm
• Total RMS Power: 900 watts
• Class D 1 ohm Stable 2-Channel-Channel Amplifier

$229.90

List price $229.90

MFA 2.420 small

Deaf Bonce MFA 2.420

• 420 watts x 2 channel @ 4 ohm
• 630 watts x 2 channel @ 2 ohm
• Bridged: 1260 watts x 1 channel @ 4 ohm
• Total RMS Power: 1260 watts
• Class D 2 ohm Stable 2-Channel Amplifier

$229.90

List price $229.90

ATOM-700.2 PRO small

Deaf Bonce Apocalypse ATOM-700.2 PRO

• 230 watts x 2 channel @ 4 ohm
• 480 watts x 2 channel @ 2 ohm
• 700 watts x 2 channel @ 1 ohm
• Bridged: 960 watts x 1 channel @ 4 ohm
• 14000 watts @ 2 ohm
• Total RMS Power: 700 watts
• Class D 1 ohm Stable 2-Channel-Channel Amplifier

(1)

$199.90

List price $199.90

Specifications & Details


Power Specifications - Full Range Channels
RMS Power @ 4 ohms
50 watts x 2 channel
RMS Power @ 2 ohms
75 watts x 2 channel
Bridged RMS Power
150 watts x 1 channel
Amplifier Specifications
Amplifier Class
A/B
Number of Channels
2-Channel
Total Peak Power Output
400 watts
Total RMS Power Output
150 watts
Maximum Input Gauge Size
8 AWG
Minimum Impedance Unbridged
2 ohm
Minimum Impedance Bridged
4 ohms
THD at Rated RMS Power
.06%
Speaker Level Inputs
Yes - with included adapter
Preamp Outputs
No
Built-in Crossover
Low-Pass (LP)
High-Pass (HP)
Low-Pass Crossover Frequency
50 - 250 Hz
Signal-to-Noise Ratio
85 dB
Bass Boost
0 - 12 dB
Remote bass/level controller
No
Warranty and Return Policy
Parts Warranty Duration
1 year
Labor Warranty Duration
1 year
Warranty Provider
Manufacturer

Item Details


Manufacturer:

HD

Model Number:

HDA4002

Weight:

8.00lbs

Internal SKU:

hda4002

Internal Product ID:

44197

Product and How-to Videos


Customer Ratings & Reviews


HD HDA4002 thumbnail image

5 star
0%
4 star
0%
3 star
0%
2 star
0%
1 star
0%



Durability
0
Value
0
Features
0
Design
0
Usability
0

Customer Reviews

Sort by:

Loading...
Sorry, no reviews found


PNAV-1 small

Power Acoustik PNAV-1

4.3" TFT-LCD Touchscreen Portable Navigation System

$119.99

List price $449.99

VTL400 small

BOYO Vision VTL400

Universal Bar Type CCD Rearview Backup Camera

(4)

$84.99

List price $129.99

F8N052-BR small

Belkin F8N052 (Jet/Cabernet)

Sling Bag for Notebooks up to 15.4'' with KeepSafe Compartment and Removable Pouch

$41.99

List price $64.99

IPAVC small

Scosche sneakPEEK auto IPAVC

Composite RCA A/V Cable Adapter to iPod/iPhone/iPad Connector for Mobile Video Systems

(1)

$59.99

List price $74.99

Related Searches


Save up to 10 different vehicles in your garage

Add vehicle
Loading...
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

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.