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Sennheiser HDI 91 Dimensions

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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
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).
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)
battery
continued
HDI 92 P
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
Supplied Accessories
Rechargeable battery BA 90
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: 860-434-9190 • Fax: 860-434-1759 • Web: http://www.sennheiserusa.com
Sennheiser Mexico:
Av. Xola 613, PH6, Col. Del Valle 03100, Mexico, DF. Telephone: (525) 639-0956. Fax: (525) 639-9482
Sennheiser Canada: 221 Labrosse Ave, Pte-Claire, PQ H9R 1A3. Telephone: 514-426-3013. Fax: 514-426-3953
Manufacturing Plant:Am Labor 1, 30900 Wedemark, Germany