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MA Audio HK400D

4.7

(6 reviews)

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The product on this page is discontinued.
  • 800W Digital Mono Amplifier
  • RMS Power Output:
    • 14.4V
      • 180 Watts x 1 chan. RMS @ 4 Ohms
      • 330 Watts x 1 chan. RMS @ 2 Ohms
    • 16.0V
      • 190 Watts x 1 chan. RMS @ 4 Ohms
      • 400 Watts x 1 chan. RMS @ 2 Ohms
  • 12v - 17v DC Power Input
  • Adjustable RCA Gain Control
  • Selectable Low (100mV -2V) and High (2V - 8V)
  • Silver Plated RCA Line Input/Output
  • Silver 4 Gauge Power & 8 Gauge Speaker Connections
  • Frequency Response 15 Hz - 150 Hz
  • 24 dB Variable Subsonic Filter (15Hz - 40Hz)
  • 24 dB Variable Low Pass Filter (50Hz - 150Hz)
  • Remote Bass Control Knob
  • 0 - 18 dB Variable Bass Boost Control (45Hz)
  • 0 - 180 Degree Selectable Phase Control
  • Short/Thermal/Overload Protection Circuitry
  • Strappable with a 2nd Class D Amplifier
  • 2 Ohm Stable (4 Ohm when Strapped)
  • Dimensions: 10.7" L x 7.03" W x 2.07" H
  • 2-year Manufacturer's warranty
Power Specifications - Full Range Channels
RMS Power @ 4 ohms180 watts x 1 channel
RMS Power @ 2 ohms330 watts x 1 channel
RMS Power @ 1 ohmNot Stable
Bridged RMS PowerNot Bridgeable
Peak Power Output800 watts approx.
Amplifier Specifications
Number of Channels1 - Mono
Total RMS Power Output330 watts
Minimum Impedance Unbridged2 ohms
Minimum Impedance BridgedNot Bridgeable
THD at Rated RMS Power0.05%
Speaker Level InputsNo
Preamp Outputs1 pair
Built-in CrossoverN/A
High-Pass Crossover FrequencyN/A
Low-Pass Crossover Frequency50 - 150 Hz
Subsonic Filter15 - 40 Hz
Signal-to-Noise Ratio96 dB
Channel SeparationN/A
Bass Boost0 - 18 dB
Bass/Gain RemoteN/A
Fan CooledNo
Fuse Rating25A x 2 
Warranty and Return Policy
Return Policy Standard Return Policy
Customer Review Summary for MA Audio HK400D
Average Customer Rating is 4.7 out of 5 stars:
4.7
based on 6 Reviews
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Rating Distribution:
5 star:
.
.
67%
4 star:
.
.
33%
3 star:
.
0%
2 star:
.
0%
1 star:
.
0%
what's this?
Average Attributes Rating:
Durability
4.8
Value
4.8
Features
4.5
Design
4.3
Usability
4.7
what's this?
Most Helpful Customer Reviews:
June 7, 2006 awesome buy for the money
Review by
william from Birmingham, AL
Overall
Durability
Value
Features
Design
Usability
This amp is unbeatable for the money, easy to install, and will do everything it's supposed to. I am very glad I purchased this amp. I don't make alot of money, and I did a ton of research on the web. I was hesitant at first, but now I'm satisfied with my choice. It's not a window rattler, been there done that, but the SQ is what I was trying for, this time. So if you are looking for good bottom fill, I do recommend this amp. I have it powering a 10" Poweracoustik FBX, like I said, I'm pleased with the SQ.
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April 24, 2006 nice amp
Review by
marcus from toledo, OH
Overall
Durability
Value
Features
Design
Usability
all i can say is very nice amp. never had any problems with it too this day. never gets hot just a lil warm, its a amp they all do.
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February 28, 2006 MA Audio HK400D
Review by
Kyle from Schoolcraft, MI
Overall
Durability
Value
Features
Design
Usability
Great mono amp. Pounds very hard and can be bridged. Product recommended. Very long life in a well respected electroninc manufacturer.
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November 10, 2005 This is great
Review by
Nick from Cave Creek, AZ
Overall
Durability
Value
Features
Design
Usability
I think that everyone should get this Amp it's good but ive worked with better amps but its amazing for the price that you pay very cheap and very trustworthy
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October 31, 2005 Awesome Amp
Review by
Robert from Valparaiso, IN
Overall
Durability
Value
Features
Design
Usability
overall this is the best amp i have ever owned, it is the easiest thing to use, its durability is awesome, i once dropped it out of my truck, from 4 feet up on accident, and it had no damage whatsoever. It is the best amp for the price.
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View All 6 Reviews for MA Audio HK400D
Amplifier Wiring Kits
Get the wires you need to properly install and power your car amp.
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Monster Cable BAP300Monster Cable BAP300
8 Gauge Amplifier Installation Power Kit (No RCA Interconnects)		$40.00
Kicker DCK8Kicker DCK8
8 Gauge Amplifier Installation Kit with RCA Interconnect Cable		$47.99
Speaker Wire
Improve the sound quality by delivering more power when replacing your factory wiring. High quality speaker will maximize your amplifier investment and system performance.
 ProductPriceAdd?
Kicker XW1220 Speaker WireKicker XW1220 Speaker Wire
12 Gauge Wire - 20 ft. of Dual Twist Speaker Cable with Sleeves for a Clean Install		$24.99
StreetWires SCP1215BL - 12 AWG Speaker WireStreetWires SCP1215BL - 12 AWG Speaker Wire
12 Gauge Wire - 15 ft. of Speaker Cable with Twisted Construction		$19.99
RCA Interconnects
You will need a good set of RCA interconnect cables to connect your amplifier to your head unit. Using high quality cables ensure the best sound possible by reducing unwanted noise interference, providing tight contacts, and utilizing the latest in cable technology.
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Kicker Z-Series RCA Interconnect CablesKicker Z-Series RCA Interconnect Cables
16.5 ft. of 2-Channel Kicker Interconnects with twisted pair conductors, gold plated contacts, and hyper-flex technology for easy installation!		$14.99
Directed Silver Series Audio Interconnect Cable ** LOW PRICE **Directed Silver Series Audio Interconnect Cable ** LOW PRICE **
20 ft. of 2-Channel RCA Interconnect cable with twisted pair construction.		$3.99
Monster Cable 300 Series XLN+ Audio Interconnect CableMonster Cable 300 Series XLN+ Audio Interconnect Cable
16.4 ft. of 2-Channel Monster Cable with XLN (Xtra Low Noise) construction, 6-cut turbine MirrorChrome connectors, and 2-way time correct windings for the ultimate RCA cable!		$45.00
Capacitors
Capacitors store energy for the amplifier to use on demand, thereby assisting in the elimination of dimming lights during peak power surges during use.
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Raptor C1F ** SPECIAL PRICE **Raptor C1F ** SPECIAL PRICE **
True 1.0 Farad Car Audio Capacitor for up to 1000W Max		$31.99
e2 ECAP1 by Scosche - Mid-Level 1 Farade2 ECAP1 by Scosche - Mid-Level 1 Farad
Digital 1.0 Farad Car Audio Capacitor for up to 1000W Max		$43.99
Rockford Fosgate RFC1D - Top of the Line 1 FaradRockford Fosgate RFC1D - Top of the Line 1 Farad
Digital 1.0 Farad Car Audio Capacitor for up to 1000W Max		$104.99
Installation, Tools & Accessories
With our professional install card, you can have your amp installed by a pro near you, or you can purchase tools and do the install yourself.
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StreetWires FB8StreetWires FB8
8 Gauge Firewall Bushing		$4.99
Kicker DB1448 (09DB1448) - Top of the Line!Kicker DB1448 (09DB1448) - Top of the Line!
Distribution Block with Two 1/0 or 4 AWG Inputs and Four 4 or 8 AWG Outputs		$18.99
Professional Installation for your Car Power AmplifierProfessional Installation for your Car Power Amplifier
Covers labor charges through our professional installer network.		$89.99
Testing and Performance
Optimize your system's performance with testing tools such as SPL meters, bass test discs and more!
 ProductPriceAdd?
AutoSound 2000 CD-104AutoSound 2000 CD-104
The ultimate amplifier level setting disc used for evaluation of audio components		$12.99
AutoSound 2000 CD-102AutoSound 2000 CD-102
High Frequency Test CD specifically designed for the set-up and evaluation of sound system imaging and placement.		$12.99
AutoSound 2000 CD-103AutoSound 2000 CD-103
Audiophile reference series test disc for evaluation of all audio components.		$12.99

Product Summary

Manufacturer: MA Audio
Model number: HK400D
Weight: 14.00 lbs
Internal SKU: hk400d
Internal product ID: 4116

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