Sennheiser HDI 91 Product Sheet

HDI 92 P
battery
HDI 92 P Infrared Stethoset Receiver
The HDI 92 P is an extremely lightweight wideband stethoset receiver which can be operated
on 95 kHz channel one, or 250 kHz channel 2, or on both channels (stereo). It is supplied
complete with an environmentally friendly BA 90 rechargeable battery and has built-in squelch.
The receiver is also available as a single-channel version for reception on channel 1 (HDI 91
P1) or channel 2 (HDI 91 P2).
Features—Benefits
• Wideband stethoset receiver for the carrier frequencies 95 kHz and 250 kHz —greater
compatibility
• Built-in squelch—comfortable listening
• Channel selector switch for channel 1, 2 or stereo (1 + 2) operation—makes it adaptable
to any configuration
• Extremely lightweight and comfortable—only approx. 1.4 oz including rechargeable battery
Technical Data
Modulation
Carrier frequencies
AF frequency response
THD
AF signal-to-noise ratio
Max. SPL
Power supply
Operating time
Weight approx.
Product Variants
HDI 92 P Two-channel stereo receiver (ch. 1, ch. 2 or stereo)
HDI 91 P1 Single-channel receiver (ch. 1–95 kHz)
HDI 91 P2 Single-channel receiver (ch. 2–250 kHz)
wideband FM
95 kHz/250 kHz
50–18,000 Hz
< 1 %
typ. 62 dB(A)
approx. 120 dB
BA 90 battery pack
approx. 11 h
1.4 oz including battery pack
continued