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

Manufacturing Plant:Am Labor 1, 30900 Wedemark, Germany

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