JBL Concert A704 – 360 Watts 4 Channel Amplifier for Speakers or Subwoofer
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Powerful Class AB amplifier
Class AB amplifier output stage combines the advantages of the Class A amplifier and the Class B amplifier while minimizing the problems of low efficiency and distortion associated with them.
Adjustable High-Pass/Low-Pass Crossover Filter
Concert amplifiers have the High-Pass Filter (HPF) and the Low-Pass Filter (LPF), which allow you to adjust the frequency from 40Hz to 400Hz based on your own music taste to deliver the appropriate musical frequencies to speakers.
Auto Turn On Facility
When using the High-level signal inputs, the amplifier automatically turns on once a DC offset is detected (>2.5 volts). When using the Line-level signal inputs, the amplifier will also turn on once a +12V signal is detected from the remote turn-on wire.
Efficient Cooling Design
High performance amplifiers are not only powerful but also compact which depend on overall Efficient Cooling Design.
Concert Sound and Elegant Look
JBL Concert amplifiers deliver extraordinary sound experience with elegant industry design.
Reliable Performance
In order to deliver high quality sound and reliable performance, the high-quality component such as audio capacitors, power MOSFET are selected for Concert amplifiers. Those amplifiers also have to undergo a rigid testing process that would destroy unstable amplifiers.
JBL freezes them, bakes them, shakes them, blasts them with ultraviolet light and drives them at full power for days at a time.
General Specifications
- 4-Channel Class AB Car Amplifier
- Rated Power RMS Output: 70W x 4 @ 4 ohm; 90W x 4 @ 2 ohm; 180W x 2 @ 4 ohm bridged, <1%THD
- Full/High-Pass/Low-Pass Filter: 40-400Hz, 12dB/octave
- SN Ratio (1W @ 4 ohms): >75dB
- Frequency Response (-3dB): 10Hz – 45kHz
- Gross weight: 2.86kg
UK Delivery Options:
- Standard Delivery 2-3 Working Days £4.99
- Courier Next Working Day £9.99
- Courier Saturday £25
International Delivery Options:
Some European countries are included - Please email us to confirm we can send to you destination. Sales@CarAudioDirect.co.uk
Order Tracking:
Visit the DPD website Tracking page here - You will need your tracking number
Unwanted Goods:
In accordance with The Consumer Contracts Regulations (2015), you have a 14 working day 'cooling off period' in which you have the right to cancel your purchase and receive a full refund.
Manufacturer's warranty:
Beyond this 14 working day period, you are covered under the manufacturer's warranty which is typically 1 year (Excluding Open Box products). If your product becomes faulty during this period, you should contact our eSupport department, via the website, direct email or phone for a returns number. We will then arrange for your item to be repaired (or replaced, if appropriate with a new product) or provide details of the manufacturers local service centre.
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