Listen Technologies LS-30-072 iDSP Essentials RF System

The LS-30-072 is a stationary RF system offering three wide band channels, adjustable audio inputs, and a transmission range up to 1,500 feet for assistive listening applications.

The Listen Technologies LS-30-072 iDSP Essentials Starter Stationary RF System operates within a 72.100 to 75.900 MHz frequency range, featuring three wide band channels for clear and reliable audio transmission. It delivers a frequency response spanning 50 Hz to 15 kHz with a signal-to-noise ratio of 62 dB (A-weighted), ensuring high-quality sound reproduction with less than 2% total harmonic distortion at 80% deviation.

This system supports versatile audio inputs, including a balanced female XLR or 1/4" combo connector with phantom power, and two unbalanced phono connectors. Outputs include mixed audio via phono connectors and a headphone jack with adjustable volume. User controls on the front and rear panels allow for power management, test tone activation, channel selection, input level adjustments, audio compression, and contouring above 5 kHz.

Equipped with indicators for audio input levels, processing status, RF power, and test tone, the transmitter maintains stable operation with a transmission range up to 1,500 feet (457 meters) and an output power of 80,000 uV at 3 meters. The unit is powered by an in-line supply compatible with 100 to 240 VAC input and housed in a compact, dark gray enclosure measuring 1.75 x 8.5 x 9.13 inches.

• Frequency range: 72.100 to 75.900 MHz with 3 wide band channels
• Frequency response: 50 Hz to 15 kHz (+/- 3 dB)
• Signal-to-noise ratio: 62 dB (A-weighted)
• Inputs: Balanced XLR/1/4" combo with phantom power and 2 unbalanced phono connectors
• Outputs: Mixed audio via phono connectors and 3.5 mm headphone jack
• Adjustable audio compression and contouring above 5 kHz
• Transmission range up to 1,500 feet (457 meters) with 80,000 uV output power at 3 meters
• Compact dimensions: 1.75 x 8.5 x 9.13 inches; weight: 2.6 lb (unit only)