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4-channel car amplifier
75 watts RMS x 4
Item # 037A6004T | MFR # A6004T
This item is no longer available.
Our take on the Audiobahn A6004T by Crutchfield's Tim Sprinkle
If you want Audiobahn performance in a smaller package, check out the Intake series amps! A built-in air intake and a cooling fan ensures that these compact workhorses will stay cool through hours of heavy use. The 4-channel A6004T pumps out 75 watts RMS of MOSFET-fueled Class AB power to four speakers, or 300 watts x 2 in bridged mode perfect for a pair of subs.
You get the precise sonic control that you expect from Audiobahn. Variable high- and low-pass crossovers trim unwanted frequencies to adapt the amp for a variety of applications. You can improve the efficiency of your speaker system by adjusting the subsonic filter (variable from 20 to 50 Hz) to block low frequencies that your speakers can't reproduce. Switch on the bass boost to bring on a bass-quake!
Like to be in control? The optional remote-mount digital voltmeter lets you keep an eye on power levels from the driver's seat, while the optional wired remote bass boost provides variable control over your low-frequency punch.
This is my first amp purchase and I could not be happier. The instructions could be better but technical support made it happen. My sales advisor presented several options to me and after listening locally, I selected this product. This amp brings my Infinity Kappas alive, wow!
Michael, Fort Worth, TX
What's in the Box:
- Four-channel amplifier with two 25-amp fuses inserted in chassis
- Pair of white cloth gloves
- 4 Self-tapping screws (length 5/8")
- 12" Speaker-level input harness (with bare wires on one end and a 5-pin Molex plug on the other end)
- 3mm Allen wrench
- 2.5mm Allen wrench
- Operating Instructions
- Product Registration sheet
- Promotional subscription offer for Transworld Motocross magazine
- Tech Tips booklet
- Product ID card
- Promotional Audiobahn tag
- 2 Audiobahn window stickers
- 4-channel car amplifier
- 75 watts RMS x 4 at 4 ohms (150 watts RMS x 4 at 2 ohms)
- 300 watts RMS x 2 bridged output
- 4-, 3-, or 2-channel operation
- Tri-way capable (Tri-Way crossover required)
- MOSFET power supply
- requires 4-gauge power and ground leads wiring and hardware not included with amplifier
- high gloss chrome finish with blue illumination
- variable crossovers (50-750 Hz, 18 dB/octave high-pass, and 50-120 Hz, 18 dB/octave low-pass)
- subsonic filter (20-50 Hz)
- separate, selectable bass boosts on front and rear channels (+18 dB at 50 Hz)
- preamp- and speaker-level inputs
- preamp outputs
- cooling fan
- fuse rating: 25A x 2
- 11-3/8"W x 2-3/8"H x 11-11/16"D
- warranty: 1 year
- Our 60-day money-back guarantee
Audiobahn A6004T Reviews
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Features and Specs
|RMS Power Output (Watts x Channels)||
75 x 4
|Peak Power Output (Watts x Channels)||N/A|
|Power at 2 Ohms (Watts x Channels)||150 x 4|
|Bridged Power (Watts x Channels)||300 x 2|
|Minimum Impedance Bridged||4|
|Minimum Impedance Unbridged||2|
|Best Frequency Response||10-40k Hz|
|THD at Rated RMS Power||0.02%|
|Signal to Noise Ratio||100 dB|
|Low-Pass Crossover Frequency||50-120Hz|
|Low-Pass Slope (dB/octave)||18dB|
|High-Pass Crossover Frequency||50-750Hz|
|High-Pass Slope (dB/octave)||18dB|
|Bass Boost Frequency||50Hz|
|Fuse Rating||25 x 2|
|Speaker Level Inputs||Harness|
|Preamp Outputs||1 pair|
|Parts Warranty||1 Year|
|Labor Warranty||1 Year|
Class A/B MOSFET Power Amplifier: The Audiobahn A6004T is a Class A/B amplifier that uses MOSFET high-speed switching devices for its amplification stage and power supply.
High-gloss Chrome-plated Finish: This amplifier has a high-gloss chrome-plated finish. A pair of white cotton gloves is included with the amplifier to prevent fingerprint smudges when handling and mounting the amp.
Cooling Fan: This amp has a built-in air intake and a cooling fan on top, ensuring cool, reliable operation.
Variable Subsonic Filter: The subsonic filter (variable from 20Hz to 50Hz) allows the amplifier to block ultra-low frequencies that your speakers can't reproduce, improving the efficiency of your speaker system. The front (1 & 2) and rear (3 & 4) channels have independent subsonic filters. No slope information is given for the subsonic filter.
Internal Crossovers: The front and rear channels have separate crossovers. Each crossover can be independently set for low-pass, high-pass, or full-range operation. In low-pass mode, the crossover is adjustable from 50Hz to 120Hz. In high-pass mode, the crossover is adjustable from 50Hz to 750Hz. In both modes, the crossover has a slope of 18dB/octave.
Bass Boost: The front and rear channels each have a bass boost switch which allows you to select a +18dB gain in bass output, centered at 50Hz. If you connect the optional ABR-100T remote bass boost control (item # 037ABR100T), the gain is adjustable from 0dB to +18dB.
Soft-Start Circuitry: The amplifier automatically turns on a few seconds after you turn your vehicle's ignition switch to ACC or ON. This eliminates the potentially damaging loud "thump" when multiple components power up simultaneously.
Optional Digital Voltmeter: This amp can be used with an the optional ADM-100T remote-mount digital voltmeter (item # 037ADM100T).
Protection Circuitry: This amp has 4-way protection circuitry, and will automatically shut down when it detects one of the following conditions: excessive heat (+158°F), input overload, short circuit, or DC offset. The protection LED will glow to indicate a problem that needs to be rectified.
Set-Screw Terminals: The A6004T is equipped with nickel-plated set-screw terminals for power and ground that can accept up to 4-gauge bare wire. The remote turn-on and the speaker output set-screw terminals can accept up to 8-gauge bare wire. Two Allen wrenches (3mm for power/ground and 2.5mm for remote turn-on and speakers) are supplied to tighten/loosen the set screws.
Line Outputs: The line outputs can be used to feed signals to another amplifier without having to split the signal or use Y-adapters. They are not affected by the built-in low-pass or high-pass filters.
Speaker-Level Inputs: Using the supplied speaker-level input harness, you can connect the amplifier to all 4 channels of a receiver or factory radio without preamp outputs. You will need to splice the receiver/radio's speaker wires to the harness, then simply plug the harness into the 5-pin high-input jack on the amplifier. Note: For 4-channel speaker level inputs, the 4 positive speaker leads and chassis ground are connected to the 5-wire harness.
DVM/Remote: Two female RJ-11 telephone-type jacks are provided for the optional Audiobahn ADM-100T remote-mount digital voltmeter and the ABR-100T remote bass boost control.
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