Product Description The JBL Stage A6004 is a compact 4-channel Class D car amplifier designed to improve the power, clarity, and overall performance of automotive audio systems. Built for efficient operation and flexible installation, this amplifier delivers reliable multi-channel output for door speakers, component speakers, or small system upgrades. With 60 watts RMS x 4 channels and the ability to bridge into 140 watts x 2 channels, the Stage A6004 provides versatile power for different car audio configurations. Its wide frequency response, adjustable crossover controls, and bass boost function help users fine-tune their sound for cleaner highs, stronger midrange, and improved low-frequency performance. Speaker-level inputs allow easier integration with compatible factory audio systems, while the compact chassis makes installation practical in tight vehicle spaces. Designed without unnecessary extras, the A6004 focuses on efficient amplification, dependable sound output, and clean system integration for everyday automotive listening. Key Features 4-Channel Class D Amplifier: Efficient amplifier design delivers strong multi-channel power for automotive speaker upgrades. 60W x 4 RMS Power Output: Provides clean and reliable power for front and rear speaker systems. Bridgeable Output: Supports 140W x 2 bridged power for flexible system configurations. Adjustable Crossovers: Low-pass and high-pass crossover controls help optimize speaker performance. Speaker-Level Inputs: Allows integration with compatible factory and aftermarket audio systems. Real Benefits Improved Sound Clarity: Adds cleaner amplification for better detail, volume, and speaker control. Flexible Car Audio Setup: Works for 4-speaker systems or bridged configurations depending on system needs. Compact Installation: Small amplifier footprint makes it easier to fit in limited vehicle spaces. Customizable Audio Tuning: Crossover and bass boost adjustments allow better sound matching with your speakers. Use Cases Factory Audio Upgrades: Ideal for adding stronger amplifier power to compatible factory speaker systems. Aftermarket Speaker Systems: Suitable for powering upgraded coaxial or component speakers. Front and Rear Speaker Power: Provides four-channel output for balanced cabin audio performance. Bridgeable Audio Builds: Can be bridged for higher output in select two-channel configurations. Technical Specifications RMS Power Output: 60W x 4 Channels Peak Power Output: 140W x 4 Channels Power Output at 2 Ohms: 70W x 4 Channels Bridged Power Output: 140W x 2 Channels Minimum Impedance: 2 Ohms Stereo, 4 Ohms Bridged Frequency Response: 20 Hz – 20 kHz Total Harmonic Distortion (THD): 1% Signal-to-Noise Ratio: 75 dB Input Voltage: 14.4V Amplifier Class: Class D Built-in DSP: No Remote Control: No Bass Boost: 0 – 12 dB @ 45 Hz Fan Cooled: No Speaker-Level Inputs: Yes Preamp Outputs: No Low-Pass Crossover Frequency: 32 – 320 Hz Low-Pass Slope: 12 dB/Octave High-Pass Crossover Frequency: 32 – 320 Hz High-Pass Slope: 12 dB/Octave Fuse Rating: 30A Width: 7-5/8 in Height: 2 in Depth: 5-3/4 in FAQ How many channels does the JBL Stage A6004 have? The JBL Stage A6004 is a 4-channel amplifier designed for powering multiple speakers in a car audio system. Can the JBL Stage A6004 be bridged? Yes, the amplifier supports bridged operation with 140W x 2 channels at 4 ohms. Does this amplifier have speaker-level inputs? Yes, the Stage A6004 includes speaker-level inputs for easier integration with compatible factory audio systems. Does the amplifier include built-in DSP? No, the JBL Stage A6004 does not include built-in DSP. What type of crossover controls are included? The amplifier includes low-pass and high-pass crossover controls from 32 Hz to 320 Hz with a 12 dB/octave slope.
