Sennheiser HDI 91 User Manual

HDI 92 P

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	wideband FM
Carrier frequencies	95 kHz/250 kHz
AF frequency response	50–18,000 Hz
THD	< 1 %
AF signal-to-noise ratio	typ. 62 dB(A)
Max. SPL	approx. 120 dB
Power supply	BA 90 battery pack
Operating time	approx. 11 h
Weight approx.	1.4 oz including battery pack

battery

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)

continued

HDI 92 P

Supplied Accessories

Rechargeable battery

BA 90

Optional Accessories

Spare rechargeable battery	BA 90
Charger for one BA 90
European version	L 90
US version	L 90-120
UK version	L 90/UK
Charging units for
up to ten BA 90	L 92-10
up to twenty BA 90	L 92-20
Plug-in mains unit for L 92 charging unit
European version	NT 92
USA version	NT 92-120
UK version	NT 92-UK

Product Compatibility

Infrared Systems operating on 95 kHz (channel 1) or 250 kHz (channel 2)

Sennheiser Electronic Corporation, 1 Enterprise Drive, Old Lyme, CT 06371

Telephone: [phone] • Fax: [phone] • Web: http://www.sennheiserusa.com

Sennheiser Mexico: Av. Xola 613, PH6, Col. Del Valle 03100, Mexico, DF. Telephone: [phone]. Fax: [phone]

Sennheiser Canada: 221 Labrosse Ave, Pte-Claire, PQ H9R 1A3. Telephone: [phone]. Fax: [phone]

Manufacturing Plant:Am Labor 1, 30900 Wedemark, Germany