Designed for use by sportscasters, the THS 4 Talkback Headphone Box and Sports Announcer Console from Whirlwind features separate main and talkback XLR microphone outputs, with a latching switch that controls the main mic output, and momentary switch for the talkback output, which mutes the main mic output. Additionally, a momentary cough switch can be used to silence the mic for use in its namesake application. The unit can provide 36V phantom power for condenser microphones.
The THS 4's headphone section features 2 inputs, each with an XLR and 1/4" connector, with each input being able to be assigned to left, right, or both ears, and with individual input volume controls and dip switches to route the input signals to each ear. Input signals can be either balanced mono or unbalanced stereo. A rear-panel switch selects the proper mode.
Two line level inputs with individual volume controls and input routing switches
Two headphone signal inputs can be assigned to either or both ears
Balanced or unbalanced inputs on XLR or 1/4" TRS jacks