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.

JBL Stage A6004

4-channel car amplifier — 60 watts RMS x 4

Item # 109STA604M

Now you can get JBL sound quality with an entry-level price tag.

Find what Fits your car

Now you can get JBL sound quality with an entry-level price tag.

California customers:
Please click here for your Proposition 65 warning.

River
Need help?
Contact our Virginia-based experts.
In stock
$189.95

Other options

River
Need help?
Contact our Virginia-based experts.

About the JBL Stage A6004

Affordable performance

Now you can get JBL sound quality with an entry-level price tag. Their Stage A6004 4-channel amplifier sends 60 watts RMS to each of your front and rear speakers, adding impact and clarity to your music. You can also use this versatile amp use in 3-channel mode to power a pair of speakers up front, while sending up to 140 watts to your sub.

Affordable performance

Now you can get JBL sound quality with an entry-level price tag. Their Stage A6004 4-channel amplifier sends 60 watts RMS to each of your front and rear speakers, adding impact and clarity to your music. You can also use this versatile amp use in 3-channel mode to power a pair of speakers up front, while sending up to 140 watts to your sub.

Works in almost any vehicle

Speaker-level inputs allow this amplifier to work with most systems, even if you're keeping your factory radio. Separate high- and low-pass filters maximize your system's performance. The front and rear channels also feature a bass boost so you can make your subwoofers sound their best.

JBL Stage A6004

Stage A6004 input and control panel

READ LESS

Product highlights:

  • 4-channel car amplifier
    • 60 watts RMS x 4 at 4 ohms (70 watts RMS x 4 at 2 ohms)
    • 140 watts RMS x 2 in bridged mode (4-ohm stable in bridged mode)
  • variable high- and low-pass filters (32-320 Hz, 12 dB/octave)
  • variable bass boost (0-12 dB at 45 Hz)
  • preamp and speaker-level inputs
  • wiring and hardware not included with amplifier
    • 8-gauge power and ground leads recommended
  • fuse rating: 15A x 2
  • dimensions: 7-5/8"W x 2"H x 5-3/4"D
  • warranty: 1 year
  • Our 60-day money-back guarantee
  • MFR # STAGEA6004AM

What's in the box:

  • 4-Channel amplifier
  • Four 15A ATO fuses (2 installed)
  • Two 12" Speaker-level input harnesses (5-pin Molex plug)
  • 4 M4 x 30mm screws
  • 4 Flat washers
  • 4 Split-lock washers
  • Four 2-piece mounting spacers
  • Owner's Manual
  • JBL decal

Customer reviews

Loading reviews...

JBL Stage A6004 reviews

Average review:

6 reviews

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
Controls
Connections

Features

Power Output: The JBL Stage A6004 4-channel amplifier delivers 60 watts RMS x 4 at 4 ohms, and 70 watts RMS x 4 at 2 ohms. The power output at 4 ohms bridged is 140 watts RMS x 2. The amp's total peak power is 560 watts.

Protection Circuitry: The amplifier features protection circuitry for thermal overload, over- or under-voltage (<9V or >16V), and short circuits. The LED on the end of the amp glows red if the amp goes into protection mode.

Controls

Gain: The Stage A6004's rotary gain control let you match the amp's input sensitivity to the output of the source unit. The input sensitivity range of the amplifier 0.2V - 5V for a line-level input, and 0.5V - 12V for speaker-level input. Separate gain controls are provided for the front (Ch1 + Ch2) and rear (Ch3 + Ch4) channels. A small screwdriver (not included) is required to set the gain.

Crossover: The amp features a switchable crossover that can be set to Low Pass, High Pass, or Full Range. If set to Low Pass or High Pass, the cutoff frequency can be set between 32Hz and 320Hz. The crossover has a 12dB per octave slope. Separate crossover controls are provided for the front (Ch1 + Ch2) and rear (Ch3 + Ch4) channels. A small screwdriver is required to adjust the frequency.

Bass EQ: The amplifier's Bass EQ circuit lets you increase the bass output from 0dB to 12dB at 45Hz. Separate Bass EQ controls are provided for the front (Ch1 + Ch2) and rear (Ch3 + Ch4) channels.

Connections

Terminals: The JBL Stage A6004 uses screw terminals for the +12V power, ground, turn-on (remote) lead, and speaker outputs. The screws can be tightened/loosened with a Phillips-head or flat-head screwdriver (not provided).

Power/Ground: The +12V Power and Ground terminals will accept up to 4-gauge wire. It is recommended that you use a minimum of 8 AWG power wire to the battery, with an in-line 30A fuse installed no more than 18" from the battery terminal. An 8 AWG ground wire (minimum) is also recommended, and attached to a metal area close to the amplifier.

Remote Turn-On: The Remote screw terminal will accept up to 8 AWG wire. Typically, an 18 AWG turn-on lead is included in an amplifier wiring kit.

Speaker Outputs: The amp features screw terminals for connecting four speakers. The amplifier's minimum speaker impedance is 2 ohms in stereo or 4 ohms bridged.

Speaker-Level Input: The amp includes two speaker-level input harness for connecting the amp to a factory radio or aftermarket head unit. You should splice left and right speaker wires from the head unit to the harness and plug the harness into the amp. Separate speaker input harnesses are provided for the front (Ch1 + Ch2) and rear (Ch3 + Ch4) channels.

Line-Level Inputs: The amplifier is equipped with two pair of RCA inputs for connecting stereo RCA patch cables from the head unit to the amp.

Loading accessories...

Customer Q&A

Q
Crutchfield asked: Why did you buy this?
A
Low cost, easy installation [ Randy  Mar 03, 2020 ]
A
Decided to get rid of the factory paper speakers that were riveted into the doors, and get rid of the factory tweeter, but turned out the tweeter is the main speaker and i would just rather run new wires than jump the connections. So this 4 channel amp will do good with the set of JBLs i'm installing! Getting a secondary battery, sub, box, and amplifier for the sub at a later date. [ Kaleb  Dec 19, 2019 ]
A
recommended to power the speakers I was purchasing. [ Scott  Nov 29, 2019 ]

Loading articles...