About the JBL Stage A6004
Affordable performance
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.
Stage A6004 input and control panel
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:
JBL Stage A6004 owner's manual
- 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
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More details on the JBL Stage A6004
Features & specs
| Performance | ||
|---|---|---|
| RMS Power Output (Watts x Channels) |
60 x 4 | |
| Peak Power Output (Watts x Channels) | 140 x 4 | |
| Power at 2 Ohms (Watts x Channels) | 70 x 4 | |
| Bridged Power (Watts x Channels) | 140 x 2 | |
| Minimum Impedance Bridged | 4 | |
| Minimum Impedance Unbridged | 2 | |
| Minimum Impedance | 2 | |
| Best Frequency Response | 20-20k Hz | |
| THD at Rated RMS Power | 1% | |
| Signal to Noise Ratio | 75 dB | |
| Input Voltage | 14.4v | |
| Features | ||
| Amplifier Class | D | |
| Low-Pass Crossover Frequency | 32-320 Hz | |
| Low-Pass Slope (dB/octave) | 12 dB/oct | |
| High-Pass Crossover Frequency | 32-320 Hz | |
| High-Pass Slope (dB/octave) | 12 dB/oct | |
| Bass Boost | 0-12 dB | |
| Bass Boost Frequency | 45 Hz | |
| Fan Cooled | No | |
| Fuse Rating | 30 | |
| Speaker Level Inputs | Yes | |
| Preamp Outputs | No | |
| Width (inches) | 7-5/8 | |
| Height (inches) | 2 | |
| Depth (inches) | 5-3/4 | |
| Parts Warranty | 1 Year | |
| Labor Warranty | 1 Year | |
Product Research
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.
The JBL Stage A6004 replaces these items
- 140 watts RMS x 2 bridged
- preamp and speaker-level inputs
- variable high- and low-pass filters; bass boost
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Customer Q&A
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JBL is known for top quality sound and this place has many good options for stereo upgrades. They have a great sales team, very intelligent technical help and shipping is lightning fast. Hard to find a company that is this good. I highly suggest you make your purchase here!
Scott from Middletown, PA