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JL Audio MHD600/4 (Open Box, Like New)

600W 4-Channel Class D, MHD Series Small Profile Marine Amplifier with R.I.P.S. Technology

JL Audio
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• 4-Channel Class D MHD Series Marine Amplifier
• 150W x 4 Chan. @ 4 ohm
• 300W x 2 Chan. Bridged @ 8 ohm
• Regulated Intelligent Power Supply
• Single Cycle Control Technology
• Studio-Grade Signal Processing
• Advanced Rollback Protection Circuitry

Learn more about the mhd6004_obc8
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Pre-installed black nylon mesh covering protects the power wire from being damaged, and pre-terminated seamless power and ground ring terminals provide reliable performance and cut out the hassle when installing. This offer cannot be combined with any other coupons or offers.

JL Audio MHD600/4 (Open Box, Like New)

100% off


Priced separately $1,257 48

Promo Savings of $109 99

Total price:

$1,147 49

Description


JL Audio brand icon

Authorized dealer

Item Condition - Like New:
A Open Box, Like New product is an apparently untouched product in perfect condition that includes all accessories and packaging. The original protective wrapping may be missing, but the original packaging is intact and pristine. There are absolutely no signs of wear on the item or installation. Instructions are included. Warranty details are included in the item description or comments. Item is suitable for presenting as a gift and savings should be abundant!

MHD600/4 Features:


     

     

     

     

     
  • 4-Channel Class D MHD Series Marine Amplifier
  • RMS Power Rating (11V - 14.5V):
    • 4 ohms: 150 watts x 4 chan.
    • 3 ohms: 150 watts x 4 chan.
    • 2 ohms: 150 watts x 4 chan.
    • 1.5 ohms: 150 watts x 4 chan.
  • Bridged RMS Power Rating (11V - 14.5V):
    • Bridged, 8 ohms: 300 watts x 2 chan.
    • Bridged, 6 ohms: 300 watts x 2 chan.
    • Bridged, 4 ohms: 300 watts x 2 chan.
    • Bridged, 2 ohms: 300 watts x 2 chan.
    • Bridged, 3 ohms: 300 watts x 2 chan.
  • Class D, switching type with patented Single-Cycle Control technology
  • Gray powder-coat finish
  • Gasketed cover over control board
  • Stainless steel hardware
  • Pulse width modulation-regulated switching power supply
  • LED power (green), protect (red) and low impedance (amber) indicators
  • Removable Power/Ground and Speaker connectors
  • Brushed aluminum finish chassis
  • Compact, stackable chassis design
  • RealSink Vertical, cast alloy fins effectively dissipate heat
  • Advanced Thermal Rollback protection system
  • R.I.P.S. - Regulated, Intelligent Power Supply
  • Single Cycle Control - high-fidelity, full-range class D
    • Compares the real PWM waveform and then corrects it in each and every cycle
      (over 400,000 times per second)
    • 80% efficiency at 1/2 rated power for the whole amplifier, including its power supply
    • 60% less current draw than a typical Class A/B car amplifier of equal power
    • Less generated heat, smaller chassis than a similarly powerful Class A/B design.
  • Noise-killing, highly flexible differential-balanced inputs
  • Speaker level inputs via RCA (JL Audio XD-CLRAIC2-SW required and sold separately
  • ²Remote bass level input (JL Audio HD-RLC required and sold separately)
  • Optional stacking equipment for MHD amplifiers: JL Audio HD Stack Kit
  • Selectable input voltage/sensitivity:
    • Low level: 200mV - 2V
    • High level: 800mV - 8V
  • Selectable input modes: 2 Ch. / 4 Ch.
  • Selectable State-variable slope: 12 dB/octave Butterworth or 24 dB/octave Linkwitz-Riley
  • Cutoff Freq. Range: Continuously variable (All Ch): 50 - 500 Hz
  • Selectable Infrasonic Filter (Sub Ch): Off / 30 Hz
  • Total Harmonic Distortion: <0.03% @ 4Ω per ch. (Average at 1kHz)
  • Signal to Noise Ration: (20 kHz bandwidth)
    • Referred to Rated Power: 110 dBA
    • Referred to 1 Watt: 88.2 dBA
  • Frequency response: 6 - 30,000 Hz (+0, -1 dB)
  • Damping Factor Ch. 1-4: >300 @ 4Ω/50 Hz, >200 @ 2Ω/50 Hz
  • Recommended fuse rating: 50A x 1 (inline, not included)
  • Dimensions: 10.74"L x 7.85"W x 1.93"H
  • ³4 gauge OFC 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. Click Here for our contact information.
  • Authorized Internet Dealer
  • 1-year Manufacturer's Warranty

Check out the JL Audio MHD600/4 Owner's Manual


Notes from JL Audio:
  • ¹If you connect a load higher than 4Ω nominal per channel in stereo mode (or 8Ω in bridged mode), power will drop by half with every doubling of impedance above 4Ω stereo / 8Ω mono. If you connect a load lower than 1.5Ω nominal per channel in stereo mode (or 3Ω in bridged mode, the amplifier protection circuitry activates a "safe" mode which reduces amplifier power to protect the circuitry from failure (the LED status indicator on the control panel will light up amber to indicate that this has happened). See page 15 for details.
  • ²When connected to the amplifier, the HD-RLC operates as follows. At full counter-clockwise rotation, the audio will mute completely. At full clockwise rotation the level will be the same as if the HD-RLC was not connected at all. In other words, it operates strictly as a level attenuator.
  • ²The RBC-1 Remote Bass Control used with JL Audio Slash, Slash v2, e-Series, A-Series and G-Series amplifiers is NOT compatible with the HD Series amplifiers. If you attempt to connect an RBC-1 to an HD amplifer, the control will not work. You must use the HD-RLC controller.
  • ³We do not recommend the use of "copperclad aluminum wire" or "CCA" wire because this wire is significantly less conductive than pure copper wire. Only use pure copper power wire, such as JL Audio's Premium Power Wire. Tinned copper wire (silver color) is acceptable as the tin-plating is only a very minor component of the wire.
  • ³The MHD600/4's "+12 VDC" and "Ground" connections are designed to accept 4 AWG power wire. 4 AWG pure copper wire is the minimum recommended wire size for this amplifier. Use of smaller gauge wire (including cheap wire that is fraudulently sold as 4 AWG wire) can create a fire hazard.


This item is currently not eligible for our low price guarantee. This may be due to supply constraints, manufacturer restrictions, or another reason. We're always here to help you get the best price possible so give us a call or email today. Our experts will do their best to build the system that works for you within the rules.

Specifications & Details


Power Specifications - Full Range Channels
RMS Power @ 4 ohms
150 watts x 4 channel
RMS Power @ 2 ohms
150 watts x 4 channel
RMS Power @ 1 ohm
Not Stable
Bridged RMS Power
300 watts x 2 channels @ 3-8 ohms
Amplifier Specifications
Series
MHD Series
Amplifier Class
D
Number of Channels
4-Channel
Total RMS Power Output
600 watts
Maximum Input Gauge Size
4 AWG
Minimum Impedance Unbridged
1.5 ohms
Minimum Impedance Bridged
3 ohms
THD at Rated RMS Power
0.03%
Speaker Level Inputs
No
Preamp Outputs
1 pair
Built-in Crossover
Low-Pass (LP)
High-Pass (HP)
High-Pass Crossover Frequency
50 - 500 Hz
Low-Pass Crossover Frequency
50 - 500 Hz
Signal-to-Noise Ratio
>110 dB
Channel Separation
Not specified by manufacturer
Remote bass/level controller
Optional (Accessory required and sold separately)
Fuse Rating
Not specified by manufacturer
Strappable
No
Sonic Certified Amplifier
Not Tested
Amp Bluetooth Connectivity
No
Hi-Res Certified
No
What is in the box?
Paperwork
User manual
WITB: Amplifiers
Amplifier
Mounting screws (4)
Allen wrenches (2)
Warranty and Return Policy
Parts Warranty Duration
1 year
Labor Warranty Duration
1 year
Warranty Provider
Manufacturer

Item Details


Manufacturer:

Model Number:

MHD600/4

Weight:

8.47lbs

Internal SKU:

mhd6004_obc8

Internal Product ID:

194419

Customer Ratings & Reviews



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



Durability
5
Value
5
Features
5
Design
5
Usability
5

Customer Reviews

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JL Rules

The following review is for MHD600/4, which is a part of the bundle you are viewing.

This amp is awesome. It is small and barely gets hot at all.

By Matt on June 19, 2012

26

found this helpful.

jl amplifiers

The following review is for MHD600/4, which is a part of the bundle you are viewing.

Great product! Sounds really good right out of the box. Easy to install, loud and clear. Go JL Audio.

By kurt on July 5, 2012

26

found this helpful.

This thing ROCKS!!!

The following review is for MHD600/4, which is a part of the bundle you are viewing.

This amp sounds sooo clean, even at volume. I am using it to drive four 8.8” JL M series coaxial speakers and it rocks. Great build quality and physical size make this the perfect amp for marine applications.

By Anonymous on January 8, 2019 Checkmark Icon Verified purchase

16

found this helpful.

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