Item# MS-8



240-watt, powered DSP-based, car audio upgrade solution
$799.95 each


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The JBL® MS-8 system integration digital processor is a giant leap forward in the pursuit of making upgrades to car audio systems easy. No longer does getting great sound in today’s cars have to be labor-intensive and complicated. This elegant, single-chassis solution, based on digital signal processing (DSP), tastefully integrates with both factory-installed and aftermarket audio systems. It provides both speaker and pre-amp level inputs (up to eight channels to mix and match). Its powerful, menu-driven configuration allows the sophisticated DSP to learn your vehicle’s audio-signal characteristics and acoustic response, and provide a fast and highly effective automated setup that includes Logic 7® audio processing. What’s more, it can analyze and save multiple listening positions. Once it completes making acoustic and signal corrections, it adds precision active crossovers, a 31-band (1/3-octave) equalizer and other user-accessible features for easy adjustment. The unit has its own onboard eight-channel power for connection directly to speakers or pre-amp level outputs to connect more powerful outboard amplifiers. What used to take professional-installation technicians hours of tuning and tweaking now occurs in a matter of minutes.

What's in the box?

  • 1 MS-8 main unit and MS-8 display unit and base
  • 1 high-level input wiring harness (gray and white insulation) and 1 speaker-output wiring harness (clear insulation)
  • 1 19.7-foot (6-meter) three-conductor cable for display unit
  • 1 wireless remote control (battery installed)
  • 1 remote-control installation tray
  • 1 remote-control trim ring
  • 1 binaural microphone headset
  • 1 calibration and setup CD (includes instruction manual and quick-start guide)
  • 4 4x20 screws
  • 3 3.5x20 screws
  • 2 3x20 screws
  • 2 hexagonal wrenches
  • 2 adhesive pads
  • 4 alcohol prep pads
  • Quick-start guide

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General Specifications

System Integration Digital Processor
Power Output
20W x 8 channels @ 4 ohms, 30W x 8 channels @ 2 ohms
MS Series

Audio Specifications

Number of Output Channels
Up to 8
Maximum Input Voltage (Speaker-Level Input)
DSP Time Correction
Output Connections
8 x line-level; 8 x speaker-level
Signal-to-Noise Ratio
(Line-in>Line-out) 90 (Line-in>Speaker-out) 85
Number of Input Channels
Up to 8
Built-In Amplification
Electronic Crossover Functions
DSP, up to 8 outputs, 6dB/12dB/18dB/24dB/octave
Seating Position Optimization
Driver, front passenger, front area, rear area
31-Band Graphic Equalizer
Tone Controls
Bass, Mid, Treble
DSP Equalization
Maximum Output Voltage (Line Output)
Frequency Response
Input Signal Conditioning
Maximum Input Voltage (Line Input)

Video Specifications

128 x 64 pixel LCD


A complete, 240W upgrade solution in a single, powerful package

The JBL MS-8 handles all the necessary tasks for dramatically improving the sound in any vehicle with an audio system. It’s got the power of a digital signal processor (DSP) engine to optimize the signals and settings for any in-vehicle listening environment, whether new or old. Logic 7 matrix processing elevates the listening experience of any two-channel source material, and onboard power allows direct connection to existing speakers. It’s a true solution.

Menu-driven configuration and measurements

Configuring your MS-8 unit takes less than 10 minutes. An included setup CD contains the signals required to analyze the inputs when you use the unit as an OEM (original-equipment manufacturer) integration device. If you connect the unit to an aftermarket product, the unit bypasses the signal-analysis portion. The unit’s on-screen menu provides comprehensive, step-by-step instructions for system configuration.

Real-time, in-vehicle measurement of listening positions

All of the MS-8 unit’s configurations require the user to wear the included on-ear binaural microphones for the initial setup. The unit collects data on up to four listening positions and subsequently provides an optimized setting for each location. This is one of the key reasons why the unit is such a breeze to use.

Sums and conditions the input signal for processing

Many of today’s OEM audio systems use multiple, bandwidth-limited active channels from the factory-installed amplifier. The MS-8 unit’s inputs can connect to all the necessary channels from the factory system and sum them together to achieve a full-range, 20Hz – 20kHz response. As long as the unit’s summing channels can assemble a full-range signal, the rest of its built-in technology will take it from there.

DSP correction of equalization and time delays in OEM systems

Once your MS-8 unit sums and analyzes your OEM audio signal, the unit’s DSP algorithms implement a correction routine that resets the frequency response to a target curve for an initial output response. In addition to correcting a frequency-response curve, the unit also strips away the time delay from any of its OEM audio-signal inputs.

Precise digital crossovers and 31-band, 1/3-octave equalizer

Once the MS-8 unit achieves all initial setup and target curves, it offers a powerful and precise range of signal-processing functions and filters, including configurable active crossovers on all channels and a 31-band (1/3-octave) graphic equalizer. As a result, the unit gives the user a high degree of audio adjustment and complete confidence in the settings remaining intact regardless of source material, output levels or other user adjustments.

Logic 7 matrix processing

Logic 7 matrix processing is widely regarded as the reference standard for making a realistic 5.1- or 7.1-channel surround experience from two-channel source material. Your MS-8 unit uses Logic 7 processing to make upgraded audio systems sound great. When enabled, Logic 7 technology provides an in-vehicle experience that no other aftermarket signal processors come close to matching. It’s yet another reason why the unit is a very effective upgrade solution for any car’s audio system.

Optimized listening positions

With the power of a precision DSP engine, it’s easy for the MS-8 unit to optimize the listening experience for one or more seated positions in your car. During system configuration, the unit can measure multiple seats and balance the audio output between two positions (or among everyone in the car), or simply store the measurements for later use. By optimizing each listening position, the unit always makes sure that you’re listening from the best seat.

Intelligent memory settings

The MS-8 unit features five favorite memory presets. Since the unit retains all individual audio, listening-position and level settings in each profile, you can easily switch among the five favorites and experience optimized seating positions, frequency-response characteristics or other attributes at the touch of a button.

Built-in, eight-channel onboard amplifier

One of the MS-8’s most useful features for an audio-system upgrade is its onboard IC (integrated-circuit) power amplifier. The unit delivers up to 18 watts RMS into 4 ohms (30 watts RMS into 2 ohms) across each of its eight channels for a maximum of 240 watts RMS. The onboard power is ideal for existing factory speakers where overall sound in the car is loud enough but just doesn’t sound that great.

Eight-channel pre-amp level outputs

Your MS-8 unit offers eight fully assignable pre-amp level outputs for virtually unlimited system-configuration possibilities in a large audio-system footprint. By combining the unit’s active crossovers to a channel assignment, you can configure front/rear/sub/center systems or fully active, three-way front/center/subwoofer systems with precision and ease.

LCD screen and wireless RF remote control

Your MS-8 unit features a five-line, 128x64-pixel LCD screen to provide easy viewing of the configuration and menu adjustment. You can navigate the menu functions with the included RF (radio-frequency) remote control. The LCD screen is easy to install; and, because of its small size, you can place it virtually anywhere that’s convenient for the driver.

Flexible voltage turn-on circuit

Your MS-8 unit has a traditional, wired remote turn-on that responds to any +4VDC (volts direct-current) or greater analog trigger signal, which makes it ideal for many of today’s low-voltage factory amplifier triggers. While many systems still provide a standard +12VDC amplifier turn-on trigger, newer OEM systems often use lower-voltage triggers. Where no viable analog turn-on signal is available, you can connect the unit to your car’s +12VDC accessory terminal.

Dedicated remote-out terminal to other devices

Your MS-8 unit is configured as the primary control for your audio system’s turn-on signal to all other amplifiers in an audio system – either the amps that follow the unit in the signal path (aftermarket amplifiers) or an OEM amplifier that is feeding its inputs. To that end, the processor provides a dedicated remote out terminal (+12VDC@1A) to drive the turn-on circuit of any outboard amplifier. These configurations help eliminate audible clicks and pops when the audio system turns on and off.

AUX input

The MS-8 unit features a pre-amp level AUX (auxiliary) input for easy connection to additional signal sources, such as portable media players, tablets, video-game systems or any other source with RCA audio outputs. The input is easily switched from the main menu and includes its own bass/mid/treble controls and relative level control.

Warranty 1 Year Warranty

Products purchased online or from an authorized local retailer and under warranty may qualify for an exchange with a valid receipt.

Purchases made from an unauthorized dealer will not be elibible for exchange.

Request an Exchange

Product Support

Call us: 1.800.336.4525

  • Sales and pre-sale assistance
  • Technical help
  • Parts and accessories


MS-8 is rated 5.0 out of 5 by 7.
Rated 5 out of 5 by from Best soundig upgrade to the factory system Even though my car came with so called Lexus Premium sound, it didn't quite sound right. I upgraded all 4 speakers and still wasn't good. I ended up shelling out a good chunk of change for MS-8. Installation was simple. Setup is not for the uninitiated. However, if you're reading this and thinking about an upgrade, you know what you're looking for. The sound is just PERFECT after the setup - almost as good as an expensive music system at home. Probably the best it can sound in a car!
Date published: 2014-11-10
Rated 5 out of 5 by from Sounds Great My Grandfather installed this shortly before giving me his older car, it sounds great and i am very impressed with the whole system.
Date published: 2014-07-13
Rated 5 out of 5 by from Must have for any car audio system. Pro or amature I bought this about a year ago to upgrade my factory system. Wow!! Is really all I can say. It was unreal how much better my truck sounded. I have now done many up grades 2-pair of 660GTI's 1-12"GTIMK2.
Date published: 2014-02-16
Rated 5 out of 5 by from I had no idea my car could sound this good I installed the MS-8 in my '02 Audi S8 and simply replaced the stock BOSE amplifier, leaving the head unit and all the speakers in place. The installation was easy, as I reused all the existing wiring for speakers, power, ground, etc. I had no idea the stock head unit and speakers could sound this good. The MS-8 provided the time alignment and equalization to provide a much improved, clear, sound with the stage centered in front of the driver. Easily the biggest audio upgrade for the cost/effort of any car audio installation I've ever done.
Date published: 2013-06-10
Rated 5 out of 5 by from This is so far the best car sound. No words to describe how it feels, every time I hear my song playing with This crispy sound, the surround experience, tight bass; it's just no words to describe that. It seems like i'm situated in the middle of a concert between the band and the rest of the people. I had had experience with sounds system before but nothing like this. Is just the Best.
Date published: 2013-05-28
Rated 5 out of 5 by from This product has a special features, functional and accurate! I'm sorry I don't speak English very well. The MS-8 has an auto setup to optimizing the car audio system, auto equalization, auto time correction, and auto level. That's accurate, simply to setup and amazing sound. Incredible!
Date published: 2012-07-30
Rated 5 out of 5 by from Simply Amazing While it was a little daunting to setup, install was basic. While there were parts I simply didn't understand until after I heard it, then it all came to make sense. This is by far the cleanest sounding system i've ever owned. I have this hooked up to Crescendo Audio 3KWP, 1000C4, 2 12" DC Audio XL's, Selenium 6's and tweeters, with a Kenwood KIV BT901 HU!
Date published: 2012-06-03
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