YPA C4A-2 Adapters The second-generation products have come, The adapter is designed for connecting DPA microphones to transmitters and power supplies featuring TA3F connections. MicroDot to TA3F Switchcraft Adapter for use with DPA's series of Miniature Microphones such as the 4060, 4061, 4062, 4063, 4065, 4066, 4067, 4071, 4088, 4099