Garage
Shop

EFX HD4300 by Scosche

800W Max, 4-Channel Amplifier (HD-4300)

EFX
Shop all EFX
Product videos
highlight-star-icon

800W 4-Channel Amplifier • 65W x 4 chan. @ 4 Ohm • 75W x 4 chan. @ 2 Ohm • extruded aluminum heatsink • overheating/short circuit protection • soft start turn-on/off • RCA line/speaker inputs

Learn more about the hd4300

We apologize

This item has been discontinued

Product Highlights


800W 4-Channel Amplifier • 65W x 4 chan. @ 4 Ohm • 75W x 4 chan. @ 2 Ohm • extruded aluminum heatsink • overheating/short circuit protection • soft start turn-on/off • RCA line/speaker inputs

Description


  • 800W Max, 4-Channel Amplifier
  • RMS Power Output:
    • 4 Ohm: 65 watts x 4 chan.
    • 2 Ohm: 75 watts x 4 chan.
    • 4 Ohm Bridged: 150 watts x 2 chan.
  • Adjustable High Pass/Low Pass Electronic Crossover (40Hz - 400Hz)
  • Extruded Aluminum Heatsink
  • MOSFET Power Switching Transistors
  • Multi-Mode Capability
  • Overheating & Short Circuit Protection
  • Soft Start Turn-On/Off
  • Line Level & Speaker Level Inputs
  • RCA Line Level Output Loop-Thru
  • Remote Adjustable Bass Boost (0 - 12dB @ 45Hz)
  • Adjustable Gain Control (200mV ~ 6 Volts)
  • Frequency Response: 20Hz - 20kHz
  • Low Impedance: 2 Ohm Load Capability
  • Dimensions: 13"L x 10"W x 2-7/16"H
  • 1-year Manufacturer's warranty

Best selling similar products

VADM4v2 small

NVX VADM4 v2 (VADM4v2)

• 80 watts x 4 channel @ 4 ohm
• 125 watts x 4 channel @ 2 ohm
• Bridged: 250 watts x 2 channel @ 4 ohm
• Total RMS Power: 500 watts
• Class D 2 ohm Stable 4-Channel Amplifier

(41)

$209.99

List price $239.99

NDA6004 small

NVX NDA6004

• 100 watts x 4 channel @ 4 ohm
• 160 watts x 4 channel @ 2 ohm
• Bridged: 320 watts x 2 channel @ 4 ohm
• Total RMS Power: 600 watts
• Class D 2 ohm Stable 4-Channel Amplifier

(14)

$159.99

List price $215.99

JD400/4 small

JL Audio JD400/4

• 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

(34)

$299.99

List price $299.99

Specifications & Details


Power Specifications - Full Range Channels
RMS Power @ 4 ohms
65 watts x 4 channel
RMS Power @ 2 ohms
75 watts x 4 channel
RMS Power @ 1 ohm
Not Stable
Bridged RMS Power
150 watts x 2 channel
Amplifier Specifications
Number of Channels
4-Channel
Total RMS Power Output
300 watts
Maximum Input Gauge Size
4 AWG
Minimum Impedance Unbridged
2 ohm
Minimum Impedance Bridged
4 ohms
THD at Rated RMS Power
0.08%
Speaker Level Inputs
Yes
Built-in Crossover
Low-Pass (LP)
High-Pass (HP)
High-Pass Crossover Frequency
40 - 400 Hz
Low-Pass Crossover Frequency
40 - 400 Hz
Signal-to-Noise Ratio
98 dB
Bass Boost
0 - 12 dB
Fuse Rating
25A x 2 
Warranty and Return Policy
Parts Warranty Duration
1 year
Labor Warranty Duration
1 year
Warranty Provider
Manufacturer

Item Details


Manufacturer:

EFX

Model Number:

HD4300

Weight:

10.00lbs

Internal SKU:

hd4300

Internal Product ID:

7052

Product and How-to Videos


Customer Ratings & Reviews


EFX HD4300 by Scosche thumbnail image

5 star
0%
4 star
100%
3 star
0%
2 star
0%
1 star
0%



Durability
4
Value
5
Features
4
Design
4
Usability
5

Customer Reviews

Sort by:

Loading...

Neat Amp

Had this installed for my car and have no regrets whatsoever, the Amp is 300 RMS CEA Rated and the power Birth Sheet shows 360+ RMS.
Sound quality is top notch for the price its awesome Value for Money. It can easily push one Scosche HD1204 sub and a pair of speakers real good. Nice for an Entry level Setup +++

By Satyajit on December 22, 2006

4 found this helpful



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.