The LR-4200-IR Intelligent DSP IR Receiver provides exceptional audio clarity with best-in-class range and sensitivity. Its compact design, rechargeable battery, and T-coil compatibility offer a superior assistive listening experience.
$269.00
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The LR-4200-IR Intelligent DSP IR Receiver from Listen Technologies delivers outstanding audio performance with unmatched range and sensitivity. As part of the iDSP line, it is the smallest receiver in its class, making it lightweight and easy to use. The integrated neck loop/lanyard with DSP loop driver enhances the listening experience for those using T-coil hearing aids, while dual 3.5mm output jacks allow for shared listening. Venues benefit from its micro USB connection, which supports convenient charging and updates.
The advanced rechargeable battery technology offers long-lasting power, reducing the need for constant battery replacements. The OLED display provides clear information on battery status, channels, and volume levels, making it ideal for corporate environments, conferences, and any setting requiring reliable assistive listening. The LR-4200-IR includes a quick start guide and a replaceable Lithium-ion battery, ensuring ease of use and maintenance.
Audio
| System Distortion | < 2% total harmonic distortion (THD) at 80% deviation |
| Audio Output Jacks | Two (2) 3.5 mm (0.14 in.) connectors, unbalanced, 0 dBu nominal output level, 16 mW maximum, impedance 32 ohm, accepts mono or stereo phone plug or LA-430 Intelligent Ear Phone/Neck Loop Lanyard |
| System Frequency Response | 63 Hz – 15 kHz (±3 dB) |
| System Signal to Noise Ratio | > 60 dB |
Controls
| User Controls | Power on/off and volume up/down |
| Programming | Via software and USB port, Auto Seek, Jack Sense, Squelch, Auto Power, Auto Off, Stereo, Brightness, Channel Name |
| Set-up Controls | Press and hold up/down volume buttons for 5 seconds to enterchannel adjust, use up/down to select channel |
Indicators
| Display | OLED – Channel designation, battery level, unit number, charging status, volume status |
| LED | Flashes when batteries are low or to indicate charging, solid when fully charged |
RF
| Carrier Frequencies | 2.3 MHz, 2.8 MHz, 3.3 MHz, 3.8 MHz |
| Number of Channels | Four (4) selectable channels |
| Frequency Accuracy | ± .005% stability 32 to 122 ºF (0 to 50 ºC) |
| Modulation | FM Wideband, ±50 kHz deviation max, 50 uS de-emphasis |
IR
| Coverage Area | 30,000 ft² (2787 m²) single channel with LT-84/LA-141 or 40,000 ft² (3716 m²) single channel with LT-82/LA-140 |
| Squelch | Programmable in 20 steps, automatic on loss of IR signal |
| Power Save Mode | Turns unit off after a specified time of no IR signal, default is 30 minutes |
| Sensitivity | Better than one (1) nW/cm2 @40 dB SNR |
Power
| Power Supply | Micro USB connector, 5 V, 500 mA |
| Battery Type | Lithium Ion |
| Battery Life | 8 Hours of typical use |
| Battery Charging Time | Fully charged in 2.5 Hours |
Physical
| Color | Flat Black |
| Unit Weight with Batteries | 2.8 oz. (79.4 g) |
| Shipping Weight | 3.5 oz. (99.2 g) with a 1 lbs. (0.45 kg) minimum |
| Dimensions (H x W x D) | 3.75 x 2.0 x 0.64 in. (9.6 x 5.0 x 1.7 cm) |
| Unit Weight | 1.9 oz. (53.9 g) |
| Dimensions with Belt Clip | 3.75 x 2.0 x 0.80 in. (9.6 x 5.0 x 2.1 cm) |
Environmental
| Temperature – Operation | 14 to 104 ºF (-10 to 40 ºC) |
| Temperature – Storage | (-)4 to 122 °F (-20 to 50 °C) |
| Relative Humidity | 0 to 95% relative humidity, non-condensing |
Compliance
| Standards | FCC Part 15, ICS-03, CE, RoHS, WEEE, ADA 706, CBC 11B-706 |
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