The Hear Technologies PRO Intercom Footswitch allows one microphone to double as both a vocal mic and an intercom mic for the Hear Back PRO Mixer.
The Hear Technologies PRO Intercom Footswitch allows for hands-free switching between a vocal mic over the PA and intercom communication within a Hear Back PRO system, all over the same microphone. The Hear Technologies PRO Intercom Footswitch features a silent mute design; it mutes the microphone signal going to the sound board without any pops or clicks. The microphone signal is then routed to the Hear Back PRO Mixer along with a special 22kHz signal that automatically engages the intercom feature on the Mixer (firmware v1.3 or higher). The 22kHz signal is not only above the human hearing range, it is also at a very low level – just enough for the Hear Back PRO Mixer to detect.
The switch is momentary, so as long as you hold your foot on the switch, the microphone will route to the intercom instead of the sound board. All outputs are transformer isolated from the microphone and each other. A special phantom-power circuit allows the microphone to be powered from the sound board (if the microphone requires phantom power). The Hear Technologies PRO Intercom Footswitch can also be used in any application where a momentary A/B XLR switch is needed.
Hear Technologies PRO Intercom Footswitch Features
- (1) female XLR input for the microphone and (2) male XLR outputs for allow you to connect to the PA system (or studio console) and a Hear Back PRO Mixer
- All outputs are transformer isolated
- PA connection passes phantom power to the microphone input with a bypass diode to power up condenser mics
- Does not require any external power or battery
Hear Technologies PRO Intercom Footswitch Specifications
- Microphone Input Impedance: 600?
- PA and Hear Back Output Impedance: 600?
- Maximum Input: +30dBu
- Microphone Input to PA Output (with 100k Input Impedance) Loss: -0.28dBu
- Microphone Input to Hear Back Output (with 100k Input Impedance) Loss: -2.80dBu
- THD on PA Output for -36dBu Input: 0.05%
- THD on PA Output for +4dBu Input: 0.06%
- THD on Hear Back Output for -36dBu Input: 0.05%
- THD on Hear Back Output for +4dBu Input: 0.01%
- Phantom Power Bypass: 48 Volts from PA Output to Microphone Input (Phantom Power Present Regardless of Input Selected)
- Pilot Tone: 22kHz @ -75dBu Sine Wave on Hear Back Output when Footswitch Pressed (Oscillator Powered from Phantom Power on the Hear Back Output)
Hear Technologies PRO Intercom Footswitch Includes
- 1 x Hear Technologies PRO Intercom Footswitch
- Manufacturer Warranty
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