Name: JBL MS-A1004
Brand: JBL
SKU: msa1004
Price: 299.99 USD
Availability: Discontinued
Rating: 4.5000 (10 reviews)

Shop all JBL

by JBL

About
Similar Products
Specs & Details
Product Videos
Reviews
Add-ons
Related Searches

Product videos

Product highlights

• 400W RMS
• Preamp RCA Outputs
• CD For System Setup
• CEA-2006 Compliant
• Built-In Display Shows Tone/Gain Settings
• Hi2 Input Setting

Learn more about the msa1004

Product Highlights

• 400W RMS
• Preamp RCA Outputs
• CD For System Setup
• CEA-2006 Compliant
• Built-In Display Shows Tone/Gain Settings
• Hi2 Input Setting

Description

Authorized dealer

General Features

MS Series 4-Channel Class D Car Amplifier
RMS Power Rating:
- 4 ohm: 100 watts x 4 chan.
- 2 ohm: 100 watts x 4 chan.
- Bridged, 4 ohm: 200 watts x 2 chan.
Digital signal processing amplifier
Pulse Width Modulated MOSFET power supply
Wireless Remote bass level input (JBL MS-WBC remote level control sold separately)
Built-in display shows tone and gain settings
Soft Start Turn-on
4/3/2 channel operation
"Hi2" input setting provides factory system amps with output loads, eliminating "speaker disconnected" error messages
Speaker-level inputs with signal sensing for automatic turn-on
Preamp RCA outputs to daisy chain multiple amps
3-Way System Protection circuitry (thermal, overload, and speaker short protection)
Digital input-mixer control eliminates the need for Y adapters
Heavy duty aluminum alloy heatsink for extreme heat dissipation
CD for system setup included
Gold-plated RCA level inputs
Gold-plated screw terminals
Input sensitivity:
- Level: 100mV-15V
Variable high-pass filter (20-20,000 Hz, 6, 12, or 24 dB/octave)
Variable low-pass filter (20-20,000 Hz, 6, 12, or 24 dB/octave)
CEA-2006 compliant amplifier
Frequency response: 20-27,000 Hz
Dimensions: 8-13/16"L x 7-1/4"W x 2-13/16"H
8-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
1-year Manufacturer's warranty

Specifications & Details

Power Specifications - Full Range Channels

RMS Power @ 4 ohms

100 watts x 4 channel

RMS Power @ 2 ohms

100 watts x 4 channel

RMS Power @ 1 ohm

Not Stable

Bridged RMS Power

200 watts x 2 channel

Amplifier Specifications

Series

MSA Series

Amplifier Class

Number of Channels

4-Channel

Total RMS Power Output

400 watts

Maximum Input Gauge Size

8 AWG

Minimum Impedance Unbridged

2 ohm

Minimum Impedance Bridged

4 ohms

THD at Rated RMS Power

Speaker Level Inputs

Yes

Preamp Outputs

1 pair

Built-in Crossover

Low-Pass (LP)
High-Pass (HP)
Full (AP)

High-Pass Crossover Frequency

20 - 20,000 Hz

Low-Pass Crossover Frequency

20 - 20,000 Hz

Signal-to-Noise Ratio

80 dB

Remote bass/level controller

Optional (Accessory required and sold separately)

JBL MS-WBC

Fuse Rating

30A x 2

Warranty and Return Policy

Parts Warranty Duration

1 year

Labor Warranty Duration

1 year

Warranty Provider

Manufacturer

Customer Ratings & Reviews

Rate or review product

Overall rating distribution

5 star		60%
4 star		30%
3 star		10%
2 star		0%
1 star		0%

Filter by Star Rating

Show only Verified Purchases

By feature average rating

Durability		4.4
Value		4.5
Features		4.9
Design		4.7
Usability		4.7

Customer Reviews

Sort by:

Small compact

Easy to install, small compact and very powerfull. Highly recommended

By Nafsusekale on June 9, 2014

found this helpful.

Helpful? Report abuse

Great Value!

WORK GREAT, A1004 WORK WITH A5001 IS VERY GREAT, THE MUSIC IS BEAUTIFUL, AND THE SIZE IS SO SMALL

By cita wong on August 21, 2014

found this helpful.

Helpful? Report abuse

Great amp, nice features, super easy

This amp replaced a Planet Audio amp that took up twice the footprint. Installation was simple and straight forward. The independent gain for input and output allowed for great flexibility. I'm using this amp without any of the crossover settings, just a straight pass through to 2 sets of Infinity Kappa component speakers. (Plus separate amp and 2 10" subs). My music has never sounded so alive. Everything is clean, clear, and extremely punchy and strong. There is also a warmth that wasn't there in my PA amp. I highly recommend this amp. I was also able to install it in my 2013 GMC Sierra Crew Cab behind the rear seat and have easy access through the rear seat armrest/cup holder. (removing the seats is a GIANT PAIN) The front control panel is sharp! I can't speak highly enough of this product.

By Bill on May 20, 2014

found this helpful.

Helpful? Report abuse

Great amplifier

Great amp.. Perfect for use in a small car like mine. Does not take a lot of space.

By Joar on December 20, 2012

found this helpful.

Helpful? Report abuse

Excellent deal

The first one I received didn't have any output on all four channels. I sent it back and got another one and I am sure glad I did because this is a excellent amp for the sales price.I am using this amp to push a set of Focal 6.5'' components(70 RMS) and a set of Polk tweeters. The amp gives plenty of clean power to the components and tweeters.The sound quality is very good even with the 80db signal -to- noise ratio. The gain setting is so easy and the digital processing has a unbelievable amount of set-up options, which comes in handy in many different systems.I have only had the amp installed for a couple months now so I don't know the durability of it yet.

By DC on July 22, 2014

found this helpful.

Helpful? Report abuse

the first addition to any system

This thing is small, powerfull, and very easy to take control of your speaker output. Very versitile amp that would clean up the sound on any system. Wide variety of crossover points and super easy to adjust. I power a set of jbl 608c and a gt5 in my 77 ford standard cab and it is so clear and loud that everyone has got to ask where its coming from. Great amp

By Troy on August 11, 2014

found this helpful.

Helpful? Report abuse

Very good amp

I have 3 of these up front and 2 of the matching 500s on subs. I've had to send a few back for exchanges for various quality control reasons (pass through on a couple...channels 3 and 4 on at least one). That has been a hassle, but Sonic is pretty good about returns. When you get one that works, it is great. The digital crossovers are sooooo much more convenient and precise than a dial. SQ is very good, especially compared to other full range class D's I've owned. The noise floor is very low...maybe a result of the ease of setting gains with the included CD. Only time I have hiss is when I bridge and turn gains high as they will go before clipping. Not sure I buy pasmags RMS claims (400 x 2 bridged) but the JBL ratings seem honest. These are my keepers after trying MANY setups over the past year. Test for defects and then enjoy!

By John on May 27, 2014

found this helpful.

Helpful? Report abuse

OK but not the best

I have some issue with MS-A1004 amplifier. I used in a higher level audio system. And it makes whistling sound, even with the engine off, and even with radio off. I even unattached the input signal from it but the whistling still exist.
And there is other thing that makes it even stranger for me. I have two other amplifiers in this system, which are working perfectly. The other two are a DLS 3 channel class A/B amplifier (DLS CA 31) and JL Audio 500/1v2: Mono block Class D Amplifier.

I have done any checks you think of, which include isolation of power wires and signal wires, measuring the input voltage of power supply (battery), checking the speakers, checking the RCA wires,…

By Rudy on January 13, 2013

found this helpful.

Helpful? Report abuse

Unmatched Versatility!

Never before has an amp of this size existed with so much function & versatility in application! Though not a full blown DSP (which would include time alignment), they would make a mediocre headunit that has time alignment & decent EQ, but lacks widely varying crossovers, more usable than could be. That in itself opens up doors to choosing more headunits than normal. The fact that any channel can be not only high or low passed, but band passed as well which makes up for lack of a subsonic filter or controlling midwoofers and midranges for whatever configuration you desire. All without adding an extra piece in the signal chain!

Power is true at normal operating voltages ... slightly less @ 12.6 volts according to Pasmag. If you can keep a steady 14.4 then there is a bit more power although insignificant in audible difference. However, the amp is underrated in 2 ohm stereo & bridged mode. It is actually almost double the power (200 x 4 @ 2 ohm stereo & 400 x 2 @ 4 ohm bridged... 14.4 volts) vs JBL ratings. More than enough power for a SQ system.

These amps will be missed long after they're gone from the market unfortunately. They're just too ahead of their time!

By Dee on December 16, 2014

found this helpful.

Helpful? Report abuse

sq amp

I would say it's one of the best amps out for sound quality.

By ebk on June 9, 2012

found this helpful.

Helpful? Report abuse

Add-ons

Belva BAK84

Complete 8 Gauge Amplifier Wiring Kit with 4-Channel RCA Interconnects

(33)

$44.99

List price $59.99

Subscribe

Welcome to the Team!

JBL MS-A1004

We apologize

This item has been discontinued

Product Highlights

Description

General Features

Specifications & Details

Item Details

Product and How-to Videos

Customer Ratings & Reviews

Customer Reviews

Related Searches

Didn't find your car?

Account

Shopping help

Company

Everyday heroes

Brand stores

Useful links