DA1ASK EXTERNAL AUDIO INTERCOM KIT WITH 16VAC1500 POWER SUPPLY AIPHONE DA1ASKDA 1ASK Provides Entry Security for your Residence Simplified Two Wire Door Entry Kit: INCLUDES 16VAC POWER SUPPLY Aiphone's DA series residential audio intercom provides audio comminication froma door station to an internal handset station. The DA Series features simple two wire cabling, AC operation by inexpensive plug pack and AC door release operation. The DA series is available either in boxed sets containing a single door station and room