Whirlwind THS5 Headphone Box

Talkback Headphone Box - Sports Announcer Console

The THS 5 has both main and talkback microphone outputs. A latching Mic On/Off switch connects signal to the Mic Out. The red light is illuminated when the Mic Out is live and is turned off by the cough and talkback switches. 36 Volt phantom power is available if condenser mics are used. Onboard phantom power allows seamless switching when talkback is activated. The switch to turn phantom power on and off 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 the mic 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.

There are two balanced line level headphone inputs on individual female XLR connectors. Separate front panel volume controls and pan pots adjust the level to the left and right ears. The THS 5 also has a third set of volume and pan pots that add the announcer's microphone to the headphone mix. A master headphone volume pot varies the overall mix in both ears simultaneously. 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.

Features:

• Two balanced line level inputs with individual volume and pan controls
• Announcer mic mix to headphones with volume and pan controls
• Master headphone volume adjusts overall mix
• Passive Mic Out for on-air reliability with dynamic mics
• Active line level Talkback Out with level adjust
• Mic On, Cough and Talkback switches for control
• 1/4" TRS or 3.5mm headphone jacks
• PS12AC1A power adapter included

Specifications:

• Frequency Response:
  Mic In to Mic Out: ±0.2 dB 20 Hz to 16 kHz
  Mic In to Talkback Out at 40 dB Gain: ±0.9 dB 20 Hz to 20 kHz
  Input 1 & 2 to Headphone Out: ±1.3 dB 20 Hz to 10 kHz
  Mic In to Headphone Out at 40 dB Gain: ±2.3 dB 20 Hz to 12.5 kHz
  Mic In to Talkback Out at 0 dB Gain -40 dBV Level: ±1.6 dB 20 Hz to 20 kHz
  Mic In to Talkback Out at 0 dB Gain -10 dBV Level: ±0.6 dB 20 Hz to 20 kHz
• THD+N:
  Mic In to Mic Out at -40 dBV:Mic In to Talkback Out at 40 dB Gain:Mic In to Headphone Out at 40 dB Gain Input Level -40 dBV:Mic In to Mic Out at 0 dBV:Mic In to Talkback Out at 40 dB Gain -40 dBV Input Level:Input 1 & 2 to Headphone Out with 0 dBV In and Out:Mic In to Talkback Out:
• Noise:
  Mic In to Mic Out: < -118 dBV
  Mic In to Talkback Out at 40 dB Gain: < -75 dBV
  Mic In to Talkback Out at 0 dB Gain: < -112 dBV
  Input 1 & 2 to Headphone Out at 0 dB Gain: < -103 dBV
  Mic in to Headphone Out at Unity Gain: < -101 dBV
  Mic in to Headphone Out at 40 dB Gain: < -77.6 dBV
• Insertion Loss:
  Mic In to Mic Out: < 0.5 dB 20 Hz to 20 kHz
• Maximum Input Level:
  Input 1 & 2 to Headphone Out: +16 dBV
  Mic In to Mic Out: +20 dBV
  Mic in to Headphone Out: -5 dBV
• Maximum Output Level:
  Input 1 & 2 to Headphone Out (30 Ohms): +8 dBV
  Input 1 & 2 to Headphone Out No Load: +14 dBV
  Mic In to Mic Out: +20 dBV
  Mic In to Talkback Out at 40 dB Gain: +15 dBV
• Input Impedance:
  Mic In No Phantom or T Power: 100 kOhms
  Mic In Phantom Power: 2.8 kOhms
  Mic In T Power: 4.7 kOhms
  Input 1 & 2: 10 kOhms
• Output Impedance:
  Mic Out: N/A passive
  Talkback Out: 22 Ohms
  Headphone Out: 30 Ohms
• Stereo Separation: Input 1 & 2 to Headphone Out: 76 dB at 1 kHz
• Phantom Power: Phantom /T power: 10 VDC
• Impulse Noise When Switching:
  Mic On/Off: < -118 dBV Mic to Talkback
  Out at 0 dB Gain: < -113 dBV
• Attenuation:
  Attenuation of Cough Button: > 118 dB at 0 dBV level
  Attenuation of Mic Out when in
  Talkback: > 118 dB at 0 dBV level
  Mic Off Attenuation: >118 dB at 0 dBV level
• Power:
  Power Requirements: 12 VAC 1000 mA
  Power Draw:
  At Secondary of 12 VAC Transformer: 0.410 A min to 0.641 A max
  At 120 VAC Line: 0.058 A min to 0.090 A max
• Dimension L x W x H: 8.0 x 5.0 x 2.5" / 20.3 x 12.7 x 6.4 cm
• Weight: 2.9 lb / 1.3 kg