Contact us
Close contact box
Connect ID #
848 380 871 3

Our hours

Connect ID #
848 380 871 3
Chat
All finished with your chat session?

We’ll email you a transcript of this conversation for your records.

We're sorry, chat is not available at this time. Please visit our Support page to find the help you need.

Please enter your name.  
Please enter a valid email address. Why is this required?
Please enter your US phone number.  

For Tech Support, call 1-800-955-9091

Thank you, !
Our conversation will be emailed to
Please enter a question  
Please select an email topic.  

Looking for tech support?
Please call us at 1-800-955-9091

Need help now?
Call an advisor: 1-888-955-6000

Please enter your name.  
Please enter your US phone number.  
Please enter an email.  
Please enter an email.  
Please enter a message  

Calls may be recorded for training and quality control purposes.

We are located in Virginia USA.

Don't wait on hold. We'll call you back when it's your turn to talk with the next available .
Please enter your name  
Please enter your phone number  
Please enter a message  

Calls may be recorded for training and quality control purposes.

We are located in Virginia USA.

Alpine MRA-D550

5-channel Digital Theater car amplifier
60 watts RMS x 5

Item # 500MRAD550

Multi-channel DVD sound is an awesome experience in your home — now imagine how great it'll sound in the...

Find what Fits your car

Multi-channel DVD sound is an awesome experience in your home — now imagine how great it'll sound in the...

Jess
Need help?
Contact our Virginia-based experts.
Discontinued item

Item # 500MRAD550

Jess
Need help?
Contact our Virginia-based experts.

About the Alpine MRA-D550

Multi-channel DVD sound is an awesome experience in your home — now imagine how great it'll sound in the enclosed space of your car. Wonder no more — the MRA-D550 Digital Theater Amplifier, controlled by a compatible Alpine in-dash stereo, will anchor your multi-channel car audio/video system, delivering deep, realistic sound from your recordings that you have to hear to believe.
Alpine Authorized Online Dealer

Multi-channel DVD sound is an awesome experience in your home — now imagine how great it'll sound in the enclosed space of your car. Wonder no more — the MRA-D550 Digital Theater Amplifier, controlled by a compatible Alpine in-dash stereo, will anchor your multi-channel car audio/video system, delivering deep, realistic sound from your recordings that you have to hear to believe.

The amp's all-digital design delivers 60 watts to each of five channels, supplying the front, rear, and center channel speakers of your system with plenty of clean power. Two inputs allow you to hook up multiple digital sources (like a DVD player or a game system) while built-in processors convert the digital info into surround sound. Built-in Dolby Pro-Logic II processing does a great job of enhancing the sound of your standard CDs.

The MRA-D550's heavy-duty internal components produce rock-solid power, and extra-large capacitors deliver additional current when needed to fuel musical peaks. A unique circuit design greatly reduces internal noise, keeping the signal clean for better performance from your speakers. Alpine's Bass Engine tone adjustments allow you to fine-tune the sound to perfectly match your vehicle. You can control the MRA-D550 with an Alpine GlideTouch CD player, for touchscreen control right from the front seat.


Note: The MRA-D550 requires a compatible head unit for setup and control, it cannot be used without one. The current list of compatible head units includes (but is not limited to): IVA-D300, IVA-D310, IVA-D900, IVA-D901, DVA-9860, and DVA-9965.
READ LESS

    Product Highlights:

    • 5-channel Digital Theater amplifier
    • 60 watts RMS x 5 at 4 ohms
    • Dolby Digital, DTS, and Dolby Pro Logic II processing built-in
    • two optical digital inputs
    • MOSFET power supply
    • CEA-2006 compliant
    • Ai-NET capable with compatible Alpine receivers
    • Bass Engine® features:
      • variable center-channel crossover (20-800 Hz in 1/3 octave steps, 12/18/24 dB per octave)
      • variable front, and rear high- and low-pass crossovers (20-400 Hz in 1/3 octave steps, 6/12/18/24 dB per octave)
      • variable subsonic filter (20-50 Hz in 1/6 octave steps)
      • subwoofer phase control (0/180 degrees)
      • time correction adjustment (0-10 mSec.)
      • 17-band parametric EQ (five bands for front, rear, and center, two bands for sub channel)
    • sub channel preamp output (20-200 Hz low-pass filter, 6, 12, 18, or 24 dB/octave)
    • STAR Topology (minimizes internal noise and prevents ground interference)
    • detachable front cover
    • blue power LED
    • fuse rating: 20A x 2
    • 8-gauge power and ground leads recommended — wiring and hardware not included with amplifier
    • 13-11/16"W x 2-9/16"H x 10-5/8"D
    • warranty: 1 year
    • Our 60-day money-back guarantee
    • MFR # MRA-D550

    What's in the box:

    • Five channel amplifier with two 20-amp blade fuses installed
    • Display panel cover (attached)
    • Terminal panel cover
    • 19.5' AI-Net cable
    • 8" Guide control cable
    • Four M4x20 self-tapping screws
    • 2.5mm Allen wrench
    • 2 M3x12 Allen bolts
    • Owners Manual (English/French/Spanish)
    • Manual corrections (English/French/Spanish)
    • Customer Care Registration/Survey
    • Output power Verification Certificate

    Customer reviews

    Loading reviews...

    Alpine MRA-D550 reviews

    Average review:

    1 review

    Thanks for submitting your review

    Filter by rating

    Customer photos

    Sort reviews

    Sort by:
    Items per page:
    View page:

    Verified customer (What's this?)
    Verified employee purchase (What's this?)

    Pros:

    Cons:

    Crutchfield response

    << >>

    Product Research

    Features
    Compatibility
    Inputs and Outputs

    Features

    Overview: The MRA-D550 is a five channel Car Theater (as opposed to Home Theater) amplifier designed to power your front (left and right), center, and rear (left and right) speakers, a preamp output feeds your subwoofer amp. Using this amp requires a compatible Alpine head unit for set up and control, by itself the amp offers no stand alone capability. Surround sound processors are built-in and also controlled by the head unit.

    Surround Processors: This amp has three surround sound processors built-in:

    • Dolby Digital: Plays Dolby Digital soundtracks in as many as six discrete channels (5.1)
    • DTS: Plays DTS soundtracks in as many as six discrete channels (5.1)
    • Dolby Pro Logic II: Simulates 5.1 channel playback from a stereo source (CD, FM Radio, etc)

    Crossovers: The MRA-D550 has four separate crossovers, all but the low pass (subwoofer output) can be turned off for full range operation:

    • Front left and right (channels 1&2): Variable high pass from 20-400 Hz in 1/3 octave steps, selectable slope of 6, 12, 18, or 24 dB/octave
    • Rear left and right (channels 3&4): Variable high pass from 20-400 Hz in 1/3 octave steps, selectable slope of 6, 12, 18, or 24 dB/octave
    • Center (channel 5): Variable high pass from 20-800 Hz in 1/3 octave steps, selectable slope of 6, 12, 18, or 24 dB/octave
    • Subwoofer (pre-amp out): Variable low pass from 20-200 Hz in 1/6 octave steps, selectable slope of 6, 12, 18, or 24 dB/octave

    Subsonic Filter: In addition to the low pass crossover, the subwoofer output also has a subsonic filter. The frequency is variable from 20-50 Hz in 1/6 octave steps with a selectable slope of 6, 12, 18, or 24 dB/octave.

    Subwoofer Output: The subwoofer output is a 4 volt line level signal (RCA) with a low pass crossover and subsonic filter. The phase of the sub output can be reversed; 0° or 180°.

    Time Alignment: The built-in surround processors offer time alignment for all six channels (5.1) to compensate for the less than perfect speaker positioning typical in a car. The delay range runs from 0-10 milliseconds in 0.1 ms increments.

    Equalizer: The MRA-D550 has a parametric equalizer with a total of 17 bands; five for the front, five for the rear, five for the center, and two for the sub. The center frequencies are adjustable from 20-20 kHz in 1/6 octave steps. The width of the EQ band (Q) is adjustable between 0.5, 1, 2, 3, 4, or 5. The adjustment level is +/-9 dB.

    Optical Inputs: The amp has two optical digital (standard Toslink) inputs for use with digital sources; DVD player, game system, etc.

    STAR Topology: Alpine's unique STAR (Signal Transit for Accurate Response) Circuit PCB design provides a single common ground for all amp sub-blocks, preventing ground interference and minimizing internal noise.

    Verification Certificate: The amplifier comes with a certificate that verifies the measured per channel RMS output of the particular amplifier. It lists the model number, serial number, test date, the test conditions (voltage, impedance), and the actual measured power output.

    Compatibility

    Head Unit: The MRA-D550 requires a compatible head unit for setup and control, it cannot be use without one. The current list of compatible head units includes (but is not limited to): IVA-D105, IVA-D106, IVA-D300, IVA-D310, IVA-D900, IVA-D901, IVA-W200, IVA-W203, IVA-W205, IVA-W505, DVA-9860, and DVA-9965.

    Speakers: Although the original manual lists bridging instructions, per Alpine: The amp is not bridgeable and is designed to power 4 ohm speakers.

    Inputs and Outputs

    Inputs:

    • AI-Net: Analog signals are input through an AI-Net cable, the amp has no standard RCA inputs
    • Changer: Since the amp is connected to the head unit's AI-Net port, a changer is connected to the AI-Net changer input on the amp
    • Power and Ground: Set screw terminals for power and ground will accept up to 8 gauge bare wire (8 gauge recommended)
    • Digital Inputs: Two Toslink optical digital inputs for digital sources (DVD, Game system, etc)
    • Guide Input and Guide Control: Control inputs from outboard controller
    • Controller: 7-pin Amplifier Link connection

    Outputs:

    • Subwoofer: Single RCA output
    • Speaker Outputs: Terminal strip outputs for all five speakers, 0.326" wide

    Loading accessories...

    Customer Q&A

    Loading articles...

    TOP