JBL Concert A704 Amplifiers

The JBL Concert A704 is a powerful 4-channel car amplifier featuring a class AB output stage for exceptional audio performance. With a frequency response of 10Hz–45kHz and a full/high-pass/low-pass filter of 40–400Hz, 12dB/octave, this amplifier delivers a versatile audio experience. Its compact footprint, adjustable high-pass/low-pass crossover filter, and auto turn on facility make it a convenient and reliable choice for car audio enthusiasts.

Key Features:

• 4-channel car amplifier with class AB output stage
• Frequency response: 10Hz–45kHz
• Full/high-pass/low-pass filter: 40–400Hz, 12dB/octave
• Compact footprint
• Adjustable high-pass/low-pass crossover filter
• Auto turn on facility

Technical Specifications:

• Peak Power: 1000 Watts
• RMS Power Output:
  • 70 Watts x 4 at 4 ohms
  • 90 Watts x 4 at 2 ohms
  • 180 Watts x 2 at 4 ohms bridged
• Signal-to-Noise Ratio (1W @ 4 ohms): >75dB

Additional Features:

• Powerful Class AB 4-channel amplifier
• On-board protection from short circuits, over temperature, over voltage & under voltage, over current
• Speaker level input option for flexible connectivity

What's in the Box?

• 1 x A704 Amplifier
• 4 x 3/4" Self-tapping screws
• 2 x Spare fuse
• 1 x Quick start guide
• 2 x 2-Channel high-level input wire harness

Why Purchase It?

• High-quality audio performance with class AB output stage
• Versatile frequency response and filter options
• Compact design for easy installation
• On-board protection ensures amplifier longevity
• Speaker level input option for flexibility in setup