- Description
Details
A Telex base station, portable belt pack transmitter, your choice of receivers, and a wide assortment of accessories allow you to meet the needs of individuals who require hearing assistance. These listening systems are even compatible with a variety of hearing instrument styles for hearing aid users. Let Telex, the acknowledged leader in personal assistive listening products, help you select the system that’s right for any listening environment.
The ST-300 Base Transmitter features 17 user selectable frequencies digitally controlled from the front panel control buttons, a headphone jack with adjustable level for input signal monitoring, and a backlit LCD display that shows Channel, Frequency and Audio Input Level. On the back of the unit is a balanced XLR-3F as well as an unbalanced 1/4” input. Front panel controls and LCD display allow the user to select mic, line, and 70 volt input options, attenuate the input levels and change hi/low RF transmit power. A new feature called Enhanced Dynamic Range (E.D.R.) works with the SR-400 receiver to provide clearer, more dynamic audio.
The SR-50 single channel receiver provides clear reception and the simplicity of a fixed channel. This economical receiver operates on one of 17 fixed narrow-band frequencies in the 72-76 MHz band. Ergonomic raised volume control knob make level adjustments easily accessible by feel. Recessed headphone jack provides extra protection for earphone connections. Two AA batteries give up to 30 hours continuous battery life.- Features
Features
ST-300 Base Transmitter:
- Base transmitter features 17 user selectable frequencies
- Front mounted control buttons and LCD display
- A headphone jack with adjustable level for input signal monitoring
- On the back of the unit is a balanced XLR-3F with selectable mic, line, and 70 volt input options, as well as an unbalanced 1/4" input
SR-50 Receivers:
- 17 fixed narrow-band frequencies in the 72-76 MHz band
- Ergonomic raised volume control knob make level adjustments easily accessible by feel
- Headphone jack provides extra protection for earphone connections
- Two AA batteries give up to 30 hours continuous battery life
- Specification
ST-300 Base Transmitter Audio Input Characteristics XLR-3F Balanced, 1/4" unbalanced Antenna Detachable ¼ wave telescoping Modulation FM, +/- 25 KHz deviation Frequency Response (System) 100 Hz to 10,000 Hz Automatic Gain Control Range 30 dB System Signal to Noise 58 dB, > 77 dB with E.D.R. Preemphasis 100 micro seconds Maximum Power 80K micro Volt/m @ 3 m (25K micro V/m in Normal) Power Requirements 13-20 Vdc or 12 Vac; 115Vac 60 Hz @ 300 mA plug-in wallpack power supply Dimensions (H x W x D) 1.75" (44.45 mm) x 7.5" (190.5 mm) x 5.9" (149.86 mm) SR-50 Receivers RF Frequency Range 72.1 - 75.9 MHz Audio Response 100 - 10,000 Hz +/- 3 dB Modulation FM, +/- 25 KHz deviation Harmonic & Spurious Emissions Meets FCC part 15 Sensitivity 0.5 μv typical, 1.0 μv maximum, 12 dB SINAD @ 25 KHz deviation Image Rejection >65 dB Signal-to-Noise Ratio >65 dB Distortion <2% T.H.D Audio Output @ 10% distortion Into 8 Ohms 48 mW Into 32 Ohms 30 mW Antenna Type 1/4 wave omni-directional, in earphone cord Batteries 2 AA-size alkaline (20 hrs. continuous use), or 2 Ni-MH (14 hrs. continuous use) Audio Controls Volume, On/Off Earphone Connector Type 3.5 mm mini stereo or mono Channels Available 72.1, 72.2, 72.3, 72.4, 72.5, 72.6, 72.7, 72.8, 72.9, 74.7, 75.3, 75.4, 75.5, 75.6, 75.7, 75.8, 75.9 Dimensions (H x W x D) 3.9" (99.06 mm) x 2.7" (68.58 mm) x 1" (25.4 mm) excluding belt clip Weight 0.29 lbs (136 grams) including batteries - System Includes
System Includes
- (1) ST-300 Base Transmitter
- (4) SR-50 Receivers
- (4) SEB-1 Earbuds
- (1) SoundMate Wall Plaque
*SM case sold separately.
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