The BasX A4 features a heavy-duty linear power supply, high-quality Class A/B amplification, transparent fault protection, and a trigger input and output. High quality industry standard unbalanced RCA inputs enable the BasX A4 to be used with almost any preamp or processor and audiophile grade five way speaker terminals accept banana plugs, spade lugs, or bare wire. These features combine to enable the BasX A4 to deliver true audiophile performance and sound quality at an amazingly affordable price.

The BasX A4 is the perfect solution if you need a high quality amp to power your Dolby Atmos and DTS:X height channels. It is also an excellent choice to power your surrounds if you're building a new system and you've already committed to a more powerful amp, like our XPA-3, to power your front channels or to power two pairs of zone speakers.

• Power Output (ALL channels driven)
• 100 watts RMS per channel; 20 Hz – 20 kHz; THD < 0.1%; into 8 Ohms
• 130 watts RMS per channel; 1 kHz; THD < 1%; into 4 Ohms
• Power Output (two channels driven)
• 100 watts RMS per channel; into 8 Ohms
• 175 watts RMS per channel; into 4 Ohms
• Power Bandwidth (at rated power; 8 Ohm load): 20 Hz to 20 kHz (+ / – 0.02 dB)
• Broad Band Frequency Response: 10 Hz to 80 kHz +0/-1.8 dB
• THD + noise: < 0.02% (A-weighted); ref rated power
• Signal to Noise Ratio (8 Ohm load):> 115 dB; ref rated power; (A-weighted)
• Minimum Recommended Load Impedance (per channel): 4 Ohms (equals one 4 Ohm load or two paralleled 8 Ohm loads)
• Damping Factor (8 Ohm load): > 500
• Input Sensitivity (for rated power; 8 Ohm load): 1.2 V
• Gain: 29 dB
• Input Impedance: 27 kOhms
• Input Connections: Unbalanced (RCA); one each per channel
• Speaker Output Connections: Audiophile grade 5-way binding posts
• Trigger Input: 5 – 12 V (AC or DC); <10 mA input current required
• Trigger Output: 12 VDC; can drive any load up to 120 mA
• 17” wide x 4” high x 15-1/2” deep (not including connectors)
• 21-1/2” wide x 8” high x 21” deep (boxed)
• 26 lbs (unboxed)
• 32 lbs (boxed)

 This item will usually ship within 1-3 working days.

We try and keep on top of our pricing, but it's a mammoth task for one person. So, if you see this product offered cheaper elsewhere, or you are offered it for less elsewhere (proof will be required) and you feel like supporting an extremely independent retailer, do get in touch and we will do our very best to match or beat wherever we can. We can't promise to do so, as there may some extenuating circumstances where we just wouldn't be able to, but we'll always do what we can.

Needs to be like for like - new for new, ex-demo for ex-demo, same colour and specs etc.