The QAA-5415-70 and QAA-5415-25 consist of four 15-watt supervised paging/speaker circuits which can be wired in Class ‘B’ (Style ‘Y’) only. The QAA-5415-70 is a 70 Volt amplifier and the QAA-5415-25 is a 25 Volt amplifier. Both models mount in either the QMB-5000N or QMB-5000B card cage and occupy one amplifier slot.
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