AP1 D - Audison 1-Channel 540W RMS Power 2-Ohm Amplifier. The AP1 D amplifier was designed to drive a subwoofer and is the ideal extension of the AP8.9 bit and AP4.9 bit. With the APTK 3 (Audison Prima Tower Kit 3) stacking system it’s possible to stack the AP1 D and save space without any problem of overheating.
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