The ProAV2 from Radial Engineering is a passive direct box designed for multimedia applications with the audio-video integrator in mind. The unit provides full two-channel stereo functionality and includes 1/4" for instruments and RCA and 3.5mm connectors for consumer electronics and computers.

Custom wound transformers are employed that are able to withstand exceptionally hot levels while maintaining linearity from 20 Hz to 18.5 kHz. The resulting smooth Bessel curve is warm and natural, making the AV2 particularly adept at handling digital sources that can sound harsh.

Transformer isolation adds the benefit of eliminating ground loops that cause audio hum and buzz and video hum bars or snow. The ProAV2 is ideal for events where full stereo operation is required.