Garage
Shop

MA Audio HK404

800W Max, 4-Channel Amplifier with Digital Voltage Display (HK-404)

MA Audio
Shop all MA Audio
Product videos
highlight-star-icon

HK Series 4-Channel Class AB Car Amplifier • 100W x 4 chan. @ 4 ohms • 200W x 4 chan. @ 2 ohms • 400W x 2 chan. @ 4 ohms • 400W x 2 chan. Max @ 4 ohms • MOSFET power supply • Quiet fan cooling system

Learn more about the hk404

We apologize

This item has been discontinued

Product Highlights


HK Series 4-Channel Class AB Car Amplifier • 100W x 4 chan. @ 4 ohms • 200W x 4 chan. @ 2 ohms • 400W x 2 chan. @ 4 ohms • 400W x 2 chan. Max @ 4 ohms • MOSFET power supply • Quiet fan cooling system

Description


MA Audio brand icon

Authorized dealer

  • HK Series 4-Channel Class AB Car Amplifier
  • RMS Power Rating:
    • 4 ohms: 100 watts x 4 chan.
    • 2 ohms: 200 watts x 4 chan.
    • Bridged, 4 ohms: 400 watts x 2 chan.
  • Max power output: 400 watts x 2 chan. @ 4 ohms
  • MOSFET power supply
  • LED power and protection indicators
  • Tuned Bass EQ (0-18 dB bass boost)
  • Digital voltage monitor display
  • Bridgeable operation
  • Thermal, short circuit, overload protection circuitry
  • Quiet fan cooling system
  • Gold-plated RCA level inputs
  • Gold-plated screw terminals
  • Variable high-pass filter (40-250 Hz, 24 dB/octave)
  • Variable low-pass filter (40-250 Hz, 24 dB/octave)
  • Frequency response: 20-20000 Hz
  • Dimensions: 12.4"L x 13.7"W x 2.7"H
  • 4-gauge power and ground wiring is required for installation. Contact us for information regarding a discount on select amplifier kits when purchased together with this amplifier.
  • Authorized Internet Dealer
  • 2-year Manufacturer's warranty

Specifications & Details


Power Specifications - Full Range Channels
RMS Power @ 4 ohms
100 watts x 4 channel
RMS Power @ 2 ohms
200 watts x 4 channel
Bridged RMS Power
400 watts x 2 channel
Amplifier Specifications
Amplifier Class
A/B
Number of Channels
4-Channel
Total Peak Power Output
800 watts
Total RMS Power Output
800 watts
Minimum Impedance Unbridged
2 ohms
Minimum Impedance Bridged
4 ohms
THD at Rated RMS Power
0.05%
Speaker Level Inputs
No
Preamp Outputs
No
Built-in Crossover
Low-Pass (LP)
High-Pass (HP)
Full (AP)
High-Pass Crossover Frequency
40 - 250 Hz
Low-Pass Crossover Frequency
40 - 250 Hz
Signal-to-Noise Ratio
90 dB
Channel Separation
60 dB
Bass Boost
0 - 18 dB
Remote bass/level controller
No
Warranty and Return Policy

Item Details


Manufacturer:

Model Number:

HK404

Weight:

11.00lbs

Internal SKU:

hk404

Internal Product ID:

14059

Product and How-to Videos


Customer Ratings & Reviews



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

Add-ons


Similar Products

Best selling similar products

NVX VAD10004

• 150 watts x 4 channel @ 4 ohms
• 250 watts x 4 channel @ 2 ohms
• Bridged: 500 watts x 2 channel @ 4 ohms
• Total RMS Power: 1000 watts
• CEA-2006 Compliant
• Class D 2 ohms Stable 4-Channel-Channel Amplifier

(14)

$279.99

JL Audio XD400/4v2

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

(9)

$349.99

JL Audio JD400/4

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

(14)

$279.99

Taramps DS 1200X4

• 192 watts x 4 channel @ 4 ohms
• 300 watts x 4 channel @ 2 ohms
• Bridged: 600 watts x 2 channel @ 4 ohms
• Total RMS Power: 1200 watts
• Class D 2 ohms Stable 4-Channel-Channel Amplifier

(2)

$204.99

Pioneer GM-DX874

• 100 watts x 4 channel @ 4 ohms
• 150 watts x 4 channel @ 2 ohms
• Bridged: 300 watts x 2 channel @ 4 ohms
• Total RMS Power: 600 watts
• Class D 1 ohms Stable 4-Channel Amplifier

(1)

$269.99

Related Searches


HK404 small

Item added to your cart.

Price: $219.99

Essential add-ons
Universal Remote Bass Level Control Knob

Flush Mount & Universal via RCA. Works with any amp, controls your bass output

$14.99

$7.99

Add to cart
4 inputs / 4 outputs High Voltage Active Line Output Converter with Impedance Matching and Remote Level Control

The XLOC44X helps you easily integrate with your factory or aftermarket system

$149.99

$64.99

Add to cart
NVX XIX45 X-Series RCA Interconnect Cable

16.4 ft. of 4-Channel X-Series RCA Cable with Dual Twisted Pair Hyper-Flex Technology

$44.99

$20.99

Add to cart
NVX V-Series RCA Interconnect Cable

19 ft. of 4-Channel RCA cable with dual twisted-pair conductors

$32.99

$15.99

Add to cart
NVX XWS1275 Speaker Wire

75 ft. of True 12 Gauge 100% Copper EnvyFlex Speaker Cable/Wire

$124.99

$59.99

Add to cart
Stinger SPP680

680 Amp SPP Series Dry Cell Battery with Protective Steel Case

$269.00

$173.99

Add to cart
80 Amp Smart Relay Isolator (XSBI80)

Smart isolator - Monitors and auto-charging feature!

$49.99

$24.99

Add to cart
80 Amp Relay Isolator (BIR80)

Great for isolating a second batter making it dedicated to the stereo system

$19.99

$14.99

Add to cart
200 Amp Smart Relay Isolator (XSBI200)

Smart isolator - Monitors and auto-charging feature!

$79.99

$54.99

Add to cart
500 Amp Smart Relay Isolator (XSBI500)

Smart isolator - Monitors and auto-charging feature!

$99.99

$74.99

Add to cart
500 Amp Relay Isolator (BIR500)

Does not create a voltage drop to the second battery like conventional isolators

$89.99

$65.99

Add to cart
NVX XCAP1F

True 1.0 Farad 20V Capacitor with Digital Read-out, Built-in Distribution Block

$124.99

$89.99

Add to cart
Belva BB1D

1.0 Farad Capacitor with Digital Red Display for up to 1000W Max

$79.99

$34.95

Add to cart
Belva Nine Function Digital Multimeter

Perfect for any installation and troubleshooting

$29.99

$9.99

Add to cart
Six Function Digital Multimeter

Perfect for every toolbox

$14.99

$6.99

Add to cart
Steve Meade Designs IM-SG

Impedance Meter / Signal Generator

$461.99

$451.99

Add to cart
SMD DD-1 Distortion Detector

Set your gains like a Pro, accurately and quickly

$207.99

$199.99

Add to cart
SMD CC-1 Crossover Calibrator

This is a must have! Set your crossover frequency like a Pro

$195.99

$192.99

Add to cart
High Quality Element Resistant AGU Fuse Holder

Belva BAGUH2 AGU Fuse Holder

$9.99

$4.99

Add to cart
Modular Linkable ANL Fuse Block

Modular Linkable ANL Fuse Block

$59.99

$16.99

Add to cart
4 Pack of 80 Amp Nickel-Plated MANL Fuse

Mini-ANL (MANL/AFS) 80A Nickel Plated Fuses

$8.99

$3.99

Add to cart
4 Pack of 100 Amp Nickel-Plated MANL Fuse

Mini-ANL (MANL/AFS) 100A Nickel Plated Fuses

$8.99

$3.99

Add to cart
2 Pack of 100 Amp Nickel-Plated ANL Fuse

ANL 100A Nickel plated for better power transfer

$7.99

$3.99

Add to cart
2 Pack of 200 Amp Nickel-Plated ANL Fuse

Two fuses per order. High quality 200 Amp ANL Fuses

$7.99

$3.99

Add to cart
2 Pack of 300 Amp Nickel-Plated ANL Fuse

Two fuses per order. High quality 300 Amp ANL Fuses

$7.99

$3.99

Add to cart
Save up to 10 different vehicles in your garage

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