Sennheiser RI 300 User Manual download pdf

FEATURES

Receives high audio quality on carrier



frequencies 2,3 MHz, 2,8 MHz and 95 kHz

Suitable for mono and stereo application



Two switchable microphones for boosting



surrounding sound

Automatic on/off when put on/off



Moveable ear pads guarantee high



wearing comfort

Balance control left/right



Ergonomic volume control



Foldable for easy transport



Lithium polymer battery for 12 hours of



permanent operation

ARCHITECT’S

SPECIFICATIONS

The wideband infrared stetho receiver

shall be capable of receiving on two carrier

frequencies of 2.3 and 2.8 MHz, and on

95 kHz (switchable). The receiver shall

provide stereo audio output mode, and shall

include a balance control that attenuates the

volume level either on the left or the right

side. The volume control shall be easy to

access for ﬁngertip control. The audio

frequency response shall range from 50 Hz

to 16 kHz, achieving a maximum sound

pressure level of 125 dB and less than 1%

THD at 1 kHz with a S/N ratio of 75dBA. The

receiver shall also include two engagable

microphones that, in conjunction with the in-

ternal ampliﬁer, amplify surrounding ambient

sounds when not being used with infrared

transmission systems such as those found in

theaters and concert halls (infrered reception

is defeated during microphone use). The

receiver shall be foldable for easy transport.

The receiver shall include a rechargeable

lithium polymer battery providing 12 hours

of operating time at full charge. The weight

including the battery shall not exceed 2.6oz

(73g). The battery shall be Sennheiser BA

300, the receiver shall be Sennheiser RI 900.

The RI 900 is the all-rounder amongst

the Sennheiser receivers. It is not only an

infrared receiver, but also a mobile sound

ampliﬁer. Whether in company or out and

about, the two activatable microphones help

you understand and discern conversations

and ambient sounds better. In theatres and

concert halls with infrared transmission

you can adjust the volume to suit your own

individual taste and enjoy the performance

in optimum sound quality.

TECHNICAL DATA

Modulation: ...........................................................FM, stereo

Receiving frequencies: ........................................2.3/2.8 MHz, 95 kHz

Frequency response: ...........................................50 - 16,000 Hz

Max. sound pressure level (at 1kHz) ...............125 dB

Total harmonic distortion (at 1kHz): ...............< 1 %

Signal-to-noise ratio: ..........................................typ. 75 dBA

Operating time: .................................................... up to 12 h

Charging time: ......................................................approx. 3 h

Weight incl. battery: ...........................................aprox. 73 g

Delivery includes: ................................................. RI 900 receiver

BA 300 rechargeable battery

2 alternative pairs of ear pads

manual

RI 900 ampliﬁer & infrared receiver

1 2

Summary of Contents

Page 1 - TECHNICAL DATA

FEATURESReceives high audio quality on carrier frequencies 2,3 MHz, 2,8 MHz and 95 kHzSuitable for mono and stereo application Two switchable m

Page 2 - RECOMMENDED ACCESSORIES

DIMENSIONSPRODUCT VARIANTSRI 900 Cat. No. 502023HDI 830 Cat.No. 502019RI 830 S Cat. No. 502021RECOMMENDED ACCESSORIESBA 300 spare bat

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Sennheiser RI 300 User Manual

Browse online or download User Manual for Headphones Sennheiser RI 300. RI 900amplifier & infrared receiver

Summary of Contents

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