JBL Stage A9004 Class D Car Audio Amplifier

JBL Stage A9004: Pure Power, Zero Fluff

Upgrade your driving soundtrack with the JBL Stage A9004, a high-performance 4-channel amplifier designed to deliver that legendary JBL “concert-row” sound. Delivering a punchy 90 Watts RMS per channel, this amp provides the clarity and headroom needed to bring out the nuances in your music that your factory system simply misses.

Why It’s a Game Changer:

• Compact Engineering: Don’t let the small footprint fool you. Its sleek, industrial design allows for easy installation in tight spaces (like under seats) without sacrificing cooling efficiency.

• Versatile Tuning: Equipped with variable High-Pass and Low-Pass crossovers, the A9004 lets you fine-tune your soundstage. Whether you’re powering full-range speakers or bridging channels to drive a subwoofer, you’re in total control.

• Reliability First: JBL puts their Stage series through “torture tests”—frozen, baked, and shaken—to ensure that when you hit the road, your music stays on.

• Onboard Protection: Integrated circuitry protects your gear against shorts, temperature spikes, and over-voltage, so you can crank the volume with peace of mind

Operating voltage 9 – 16V
RMS power @ 4 ohms 90W
RMS power @ 2 ohms 110W
RMS bridged power @ 4 ohms 220W
Total peak power 880W
Frequency response 20Hz – 20kHz @ -1dB
THD + N at rated power
(20Hz – 20kHz) <1%
Line-in signal-to-noise ratio
(reference to 1 watt) >75dB
Maximum high input signal level 12V
High input maximum sensitivity 0.5V
Maximum line input signal level 5V
Line input maximum sensitivity 0.2V
Quiescent current draw <1.5A
Fuse size 2 x 20A
Dimensions (H x W x L) 50 x 145 x 268.6mm
Weight 1.806kg