Channel Vision ABus Keypad With 40w Amp or Multiple Speaker Pairs
Normally A-Bus systems have a single pair of speakers connected to the Abus keypad which has a built-in low power amplifier. In the case where higher output power is needed, or if more than one set of speakers need to be driven from a single keypad, the channel vision A0302 and A0240 can be used. The keypad connects to the a0302 which in turn connects to the A0240 Amp. The amplified line then goes back through the keypad and to the speakers.

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