The Whirlwind PB12 passive press box distributes one line level input to twelve mic level outputs*. Each output of the Whirlwind PB12 is transformer isolated, provides excellent interchannel isolation and is ground lifted to help eliminate noise problems. Whirlwind TRSP-2F transformers are used throughout the Whirlwind PB12.

The Whirlwind PB12 is an output expander for use with Whirwind's PRESSPOWER2 and PRESSMITE active press box line outputs, or any other live press conference or forum application where a line level feed is available.

The Whirlwind PB12 is a professional product in a moderate price range, intended for broadcast and commercial conferencing applications.

The Whirlwind PB12 is constructed with rugged, cold-rolled steel.

(*) Line level signal MUST be provided into the Whirlwind PB12 passive press box. A microphone directly into the input will not provide enough signal level for proper operation.