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THS family of Headphone boxes
The THS series of sports announcer boxes combine high quality headphone amplification with various microphone control options in rugged metal desktop chassis. THS boxes are ergonomically designed to put the control buttons within easy reach of the announcer even while shuffling through stat sheets. The headphone amplifiers are designed to deliver powerful, undistorted audio that can be heard over an arena full of screaming fans.
The THS 4 Talkback/Headphone box is an all-purpose, fully loaded sports announcer console. Both main and talkback microphone outputs are provided, with Mic On/Off, Cough and Talkback switches for control. The talkback output is line level with a trim control and the main microphone output of the THS 4 will be live on-air if power is lost, when using dynamic microphones.
There are two inputs for the headphones with balanced and unbalanced connections. Each input has volume control and assigns switches for the left and/or right headphones. Input level adjustments affect both left and right ears equally. Headphones with impedances ranging from 30 to 600 Ohms can be driven to full volume.
The THS 4 has both main and talkback microphone outputs. A latching Mic On/Off switch connects signal to the main mic output. The switch is illuminated red when the mic output is live. Two types of onboard condenser microphone power are available, enabling seamless switching when talkback is activated. A three way switch selects either phantom or "T" power and is recessed to avoid accidental turn off. A momentary Cough switch silences both the mic out and the talkback out when depressed. The momentary Talkback switch connects audio to the talkback output and mutes the mic out. The announcer’s microphone is sent through a preamp and line driver that deliver signal to the talkback output at line level. There is a level control for fine adjustment of the audio sent down the talkback line. The Talkback switch illuminates green when depressed.
The headphone section of the THS 4 has two inputs. Each input has a volume control and dip switches to send the signal to the left and/or right headphone earpieces. When an input is assigned to both ears, level adjustments affect both left and right ears equally. Input signals can be either balanced mono or unbalanced stereo. A rear panel switch selects the proper mode. Both 3 pin XLR and ¼” TRS input jacks are provided for hookup flexibility. Headphones with impedances ranging from 30 to 600 Ohms can be driven to full volume.
Power is supplied by a 12 VAC power adapter, model # PS12AC1A, included with the unit.
· Two line level inputs with individual volume controls
· Input Assign switches route inputs to either or both ears
· Balanced or unbalanced inputs on XLR or ¼” TRS jacks
· Passive Mic Out for on-air reliability
· Mic output switching is completely silent
· Active line level Talkback Out with level adjust
· Mic On, Cough and Talkback switches for control
· ¼” TRS or 3.5mm headphone jacks
· PS12AC1A power adapter included
|THS Series Comparison Chart||THS1M||THS1T||THS2||THS3||THS4||THS5||THSR|
|Type of Mic On/Off switch||
|Cough Switch (Momentary)||~||~||X||X||X||X||X|
|Talkback Mic to line with level control (-20 to +40 dB)||~||~||X||X||X||X||X|
|Stereo In with stereo volume and Mono in (XLR balanced line
|Stereo In with separate L and R volume controls and Mono in (XLR
balanced line level)
|Assignable input to L or R on HP pre volume control||~||~||~||X||~||~||~|
|Assignable input to L or R on HP post volume control||~||~||~||~||X||~||~|
|2 Inputs balanced xlr with volume and pan, mic input volume and
pan to HP
|Master HP volume (stereo)||~||~||~||~||~||X||~|
|RTS input (2 unbalanced on xlr) with L/R assignable switches post
|Headphone power 30 ohms||200 Mw||200 mW||200 mW||200 mW||200 mW||200 mW||123 mW|
|Mic pass thru with no power||x||x||x||x||x||x||x|
|Wall Power Supply||x||x||x||x||x||x||x|
|Unit Width (left to right) inches||7.3||7.3||7.3||7.2||7.2||8||7.5|
|Unit Depth (front to back) inches||4.5||4.5||4.5||5||5||5||5|
|Unit Height (from desktop) inches||2.5||2.5||2.5||2.5||2.5||2.5||2.5|
Specification sheets, brochures and other information available upon request.