Listen Technologies LS-31-072 IDSP Essentials Level 2 Stationary RF Assistive Listening System - 72 MHz - Dante

LS-31-072-D - Overview

• Features:

  • Low priced solution for meeting your installed assistive listening needs
  • Dante adapter enabled
  • Three (3) frequencies make it simple to install, manage and use
  • 100 % Digital - Listen receivers are digitally-tuned so the transmission won't drift
  • Long transmission range ensures coverage for the entire venue
   

• Specifications:

  • Stationary 3-Channel RF Transmitter (72 MHz)
  • Frequency Response: 50 Hz - 15 kHz (±3 dB)
  • Signal-to-Noise Ratio: 62 dB (A-Weighted)
  • Audio Input 1: Rear panel, one (1) Female XLR and 1/4 in combo connector, balanced, 0 / -55 dBu (line/mic) nominal input level adjustable, -30 / +21 dBu (line/mic) maximum input level, impedance 20k / 1k ohm (line/mic), phantom power +12 VDC
  • Audio Input 2: Rear panel, two (2) phono connectors, unbalanced, -10 / +10 dBu nominal input level adjustable, +30 dBu maximum, impedance 100k ohm
  • Audio Processing: Compression can be turned on/off. Slope internally adjustable from 1:1 to 4:1. Default 2:1
  • Contour: Cuts and boosts frequencies above 5 kHz
  • Distortion: < 2% total harmonic distortion (THD) at 80% deviation
  • Audio Output: Input 1 and input 2, mixed output (rear panel), two (2) phono connectors, unbalanced, -10 dBu nominal output level, +15 dBu maximum, impedance 10 ohm
  • Headphone Output: Front panel, one (1) 3.5 mm (0.14 in.) stereo connector, unbalanced, adjustable output level, +3 dBu maximum, impedance 10 ohm
  • RF Frequency Range: (A) 72.100, (E) 72.900, (H) 75.900
  • RF Number of Channels: 3 wide band
  • RF Frequency Accuracy: ± .005% stability 0 to 50°C (32 to 122°)
  • RF Antenna Type: Various antennas available
  • RF Transmitter Stability: 50 PPM
  • RF Transmission Range: Up to 305 m (1,000 ft.)
  • RF Antenna Connector: BNC, 50 Ohms (Use RG-58 < 100 ft or RG-8 > 100ft)
  • RF Output Power: 80,000 uV at 3 m
    
    Basic DSP RF Receiver (72 MHz)
  • System Distortion: < 1% total harmonic distortion (THD) at 80% deviation
  • Output/s: Two (2) 3.5 mm (0.14 in.) connectors, unbalanced, 0 dBu nominal output level, 50 mW maximum, impedance 32 ohm
  • System Frequency Response: 50 Hz - 15 kHz (±3 dB)
  • System Signal to Noise Ratio: SQ disabled 70 dB, SQ enabled 80 dB
  • RF Frequency Range: 72.0250 - 75.9500 MHz
  • RF Number of Channels: Basic Mode: 3 wide Band, Expand Mode: 17 wide band
  • RF Sensitivity: .6uV typical, 1 uV maximum for 12 dB sinad
  • RF Frequency Accuracy: ± .005% stability 32 to 122 °F (0 to 50 °C)
  • RF Squelch: Fixed level, automatic on loss of RF signal
  • RF Antenna Type: Uses ear phone/neck loop lanyard and short ear phone cable or standard earphone cable
    
    Universal Ear Speaker
  • Frequency Response: 20 Hz - 20 kHz
  • Impedance: 32 ohm +/- 15% @ 1 kHz
  • Input Sensitivity: 115 dB +/- 4dB @ 1 kHz, 1 mW
  • Rated Power Input: 50 mW
  • Max Power Input: 100 mW
  • Connector/s: Male 3.5 mm (TRS)
   

• Item Includes:

  • 1x LT-803-072-01 3-Channel RF Transmitter (72 MHz)
  • 1x LA-465 Dante 1 Channel Output XLR Adapter (POE required)
  • 1x LA-122 Universal Antenna Kit (72 MHz and 216 MHz)
  • 1x LA-326 Universal Rack Mounting Kit
  • 4x LR-3200-072 Intelligent DSP RF Receiver (72 MHz)
  • 4x LA-401 Universal Ear Speaker
  • 2x LA-430 Intelligent Ear Phone/Neck Loop Lanyard
  • 1x LPT-A107-B Dual RCA to Dual RCA Cable 6.6 ft. (2 m)
  • 1x LA-423-01 4-Port USB Charger
  • 1x LA-304 Assistive Listening Notification Signage Kit