Concert A704 4-channel amplifier 70 Watt RMS - Class AB

JBL

Discontinued

Your price:
€ 159,00
Price per single item (VAT included)
Amplifier Type
4 channels
Amplifier Class
AB
RMS Power 4 Ohm
4x70 Watt
RMS Power 2 Ohm
4x90 Watt
RMS Power Dual Mono 4 Ohm
2x180 Watt
RMS Power Mono 2Ω
2x180 Watt
S/PDIF Digital Input
No
High Level Input
YES
Signal-to-Noise Ratio
75 dB S/N

JBL Concert A704 4-channel full-range class AB amplifier, power 70W RMS x 4 @ 4 ohm - 90W RMS x 4 @ 2 ohm. 180W RMS x 2 bridged @ 4 ohm. High-pass and low-pass filter 40Hz-400Hz. Speaker Level and RCA inputs, auto turn-on with Hi-Level input.

JBL Ultimate Car Audio

Superior features and competitive price, compact and elegant body, equipped with adjustable high-pass/low-pass crossover filter, automatic turn-on function and, above all, reliable performance.

The 4-channel JBL Concert A704 amplifier delivers 70 watts RMS to each of the front and rear speakers. By combining the channels it can power a pair of subwoofers with a maximum of 180 watts RMS each.

JBL Concert A704 Strengths

Powerful class AB amplifier
The class AB amplifier output stage combines the advantages of class A amplifier and class B amplifier while minimizing the low efficiency and distortion problems associated with them.

Adjustable high-pass/low-pass crossover filter
Concert amplifiers have the high-pass filter (HPF) and low-pass filter (LPF), which allow you to adjust the frequency from 40 Hz to 400 Hz according to your musical taste to provide the appropriate music frequencies to the speakers.

Automatic turn-on function
When using high-level signal inputs, the amplifier automatically turns on when a DC offset is detected (>2.5 volts). When using line-level signal inputs, the amplifier will also turn on once a +12V signal is detected from the remote turn-on cable.

Efficient cooling design
High-performance amplifiers are not only powerful but also compact which depend on the overall efficient cooling design.

Concert sound and elegant appearance
JBL Concert amplifiers offer an extraordinary sound experience with an elegant industrial design.

Reliable performance
To provide high-quality sound and reliable performance, high-quality components such as audio capacitors, power MOSFETs are selected for concert amplifiers. These amplifiers must also undergo a rigorous testing process that would destroy unstable amplifiers.

JBL Concert A704 technical specifications

  • 4-channel class AB car amplifier
  • Rated RMS output power:
  • 70 W x 4 @ 4 ohm; 90 W x 4 @ 2 ohm; 180 W x 2 at 4 ohm bridged, <1% THD
  • Full-range/high-pass/low-pass filter:
  • 40-400 Hz, 12dB/octave
  • SN ratio (1W @ 4 ohm): >75dB
  • Frequency response (-3dB):10Hz - 45kHz
  • Gross weight: 2.86 kg

Package contents

  • 1x Concert A704 amplifier
  • 4 self-tapping screws 3/4".
  • 2 spare fuses
  • 1x Quick guide
  • 2x 2-channel high-level input wiring
Discontinued