Sennheiser Set 250 User Manual
Specifications and Main Features
- Available Models:
- SET 250: mono sound transmission using infrared (TI 250 Transmitter, RI 250 Receiver)
- SET 500: Stereo Sound Transmission over Infrared (TI 500 Transmitter, RI 500 Receiver)
- Modulation Technique:
- For SET 250, the modulation is FM mono while,
- For SET 500 this is FM stereo modulation.
- Working Frequencies:
- SET 250: 2.3 MHz frequency
- SET 500: 2.3 and 2.8 MHz frequencies
- Sound Frequency Range:
- In terms of range, the SET 250: has frequency range of 18-1800 Hz while,
- SET 500: has a range of 18-18000 Hz
- Harmonic Distortion Total:
- Both models: <1%
- Signal-to-Noise Ratio:
- SET 250: typical sound of 70 dB
- SET 500: typical sound of 64 dB
- Receiver Specifications:
- RI 250:
- One BA 151 Accu allows for approximately 6 hours of usage
- Weight is equal to upto 45 g with acc and 35g with out
- Max sound pressure accounted for: 124 dBA
- RI 500:
- One BA 151 Accu allows for approximately 5 hours of usage
- Weight is equal to upto 45 g with acc and 35g with out
- Max sound pressure accounted for: 124 dBA
- Transmitter Specifications:
- TI 250:
- Weight if equal to approximately 170 g
- TI 500:
- Power Consumption is approximately
10 VA
- Power Supply: 240V (NG 12-UK NT 20-UK)
- Weight: approximately 180 g
- Accessories:
- BA 151 Rechargeable Accu: Art. No. 04146
- RI 250 Receiver: Art. No. 04373
- RI 500 Receiver: Art. No. 04376
- Black Replacement Ear Cushions (firm): Art. No. 37080
- Soft Replacement Ear Cushions (transparent): Art. No. 40949
- MKE 100 TV Microphone (TI 250 only): Art. No. 03354
Frequently Asked Questions
- Q: Is there any difference between the SET 250 and SET 500?
ASET 250 is a mono infrared sound transmission system while SET 500 is a stereo infrared sound transmission system.
- Q: What is the maximum sound pressure level for the receivers?
ABoth the RI 250 and RI 500 receivers have a maximum sound pressure level of 124 dBA.
- Q: After a full charge of the battery, how long will it last?
A: The RI 250 receiver lasts about 6 hours with a single BA 151 Accu whereas the RI 500 lasts roughly about 5 hours.
- Q: This system can be used other than onboard televisions. Right?
A: Yes the systems can also be used with CD players, multimedia computers and telephones.
- Q: What will I do if the sound quality is very poor?
A: Make sure that the receiver is in sight of the transmitter. Also, check to see that the transmitter and receiver interface have unmatched volume control. If the problems continue, try charging the Accu.
- Q: Is there any risk of using the infrared transmission?
A: As far as the prevailing scientific evidence is concerned, infrared sound transmission does not pose any health hazards.
User Manual
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