• Listen Technologies LP-4VP-072-01 (72 MHz) DSP Value Package
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Listen Technologies LP-4VP-072-01 DSP Assistive Listening Package | 72 MHz

Listen Technologies LP-4VP-072-01 DSP Assistive Listening Package | 72 MHz

SoundPro Item: 89953 | Part Number: LP-4VP-072-01

$1,154.00
$1,312.00 $1,154.00
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MSRP: $1,312.00 | MAP: $1,154.00

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  • Three Wideband Channels Simplify Frequency Management Without Coordination
  • 62 dB Signal-To-Noise Ratio Ensures Clear Speech Intelligibility
  • Stationary Transmitter Design Suits Permanent Installation Environments
  • LA-123 Antenna Provides Wide-Area Coverage For Mid-Sized Venues
  • Complete Package Reduces Procurement Time And Compatibility Risk
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The Listen Technologies LP-4VP-072-01 Assistive Listening DSP Value Package provides integrators with a turnkey foundation for ADA-compliant audio assistance in houses of worship, meeting halls, and private gathering spaces. Built around the LT-803 stationary transmitter and four LR-3200-072 receivers, this 72 MHz system covers venues accommodating up to 100 occupants when paired with two neck loops. The included 90-degree helical antenna ensures consistent RF coverage, while the bundled earbuds and signage kit enable immediate deployment.

Designed for straightforward installation and management, the package operates across three wideband channels that minimize frequency coordination while maintaining 62 dB signal-to-noise ratio for intelligible speech reproduction. The 600-foot transmission range with the LA-123 antenna accommodates typical worship and assembly environments without requiring additional infrastructure. Listen Technologies backs this economical entry point with 30-day demonstration availability and comprehensive technical support, making it a low-risk choice for facilities new to assistive listening requirements.

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  • LT-803-072-01
    • Audio
      • 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
    • Controls
      • User Controls: Front Panel: Power, Test Tone on/off, Channel up/down, Input Levels, Mix Level, Contour, Monitor volume controlRear Panel: Input 1 Level, (Line, Mic, Mic-Phantom Power), Input 2 level (-10 / +10 dBu), RF power level (low, mid, high)
      • Internal Adjustments: Compression ratio for audio processor
      • Programming: Process on/off, channel lock
    • Indicators
      • LCD Channel: Designation, lock status, RF power level (front panel)
      • Audio Input Status LEDs: Indicates Input 1, Input 2, and Mix audio levels; 10 segment LED's (8 green, 2 red)
      • Processing: Indicated by a green LED when on (front panel)
      • Test Tone: Red LED illuminates when test tone is enabled
      • RF Power: Indicated on the LCD (low, mid, high)
    • RF
      • Frequency Range: (A) 72.100, (E) 72.900, (H) 75.900
      • Number of Channels: 3 wide band
      • Frequency Accuracy: ± .005% stability 0 to 50ºC (32 to 122º)
      • Antenna Type: Various antennas available
      • Transmitter Stability: 50 PPM
      • Transmission Range: Up to 305 m (1,000 ft.)
      • Antenna Connector: BNC, 50 Ohms (Use RG-58 < 100 ft or RG-8 > 100ft)
      • Output Power: 80,000 uV at 3 m
    • Power
      • Power Supply: In line power supply, Listen part number LA-207 (Line cord is determined by the each Country's AC power standards)
      • Power Supply Input: 100-240 VAC, 50-60 Hz, 0.4 A
      • Power Supply Output: 12 VDC, 1.3 A, 15.6 W
      • Power Supply Connector: 5.0 mm (0.02 in.) OD, 2.5 mm (0.01 in.) ID, barrel type
      • Compliance: UL, CE, GS, TÜV, RoHS
    • Physical
      • Dimensions (WxHxD): 8.5x1.75x9.13" (21.5x4.5x23cm)
      • Color: Dark Grey with white silk screening
      • Unit Weight with Power Supply: 2 kg (4.5 lbs)
      • Shipping Weight: 2.7 kg (6 lbs)
      • Rack Mounting: One (1) rack space height, 1/2 rack space wide. One (1) or two (2) transmitters can be mounted in one rack space,optional rack mount (LA-326)
      • Weight: 1.2 kg (2.6 lbs)
    • Environmental
      • Temperature - Operation: -10 ºC (14 ºF) to +40 ºC (104 ºF)
      • Temperature - Storage: -20 ºC (-4 ºF) to +50 ºC (122 ºF)
      • Relative Humidity: 0 to 95% relative humidity, non condensing
    • Compliance
      • RF: FCC Part 15, Part 90, Industry Canada
  • LA-123 Antenna
    • Interconnections: BNC
    • RF
      • Frequency Range: 72.0250 - 75.9750 MHz
      • Number of Channels: 57 (17 wide, 40 narrow)
      • Typical Range: Range up to 122 m / 400 ft.
    • Physical
      • Length: 21 cm (8.25 in.)
      • Color: Dark Grey
      • Shipping Weight: 0.5 kg (1 lb)
      • Diameter: 1.1cm (0.44")
      • Weight: 45g (1.6 oz)
  • LR-3200-072 Basic DSP RF Receiver
    • Audio
      • 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
    • Controls
      • User Controls: Power, up/down volume
      • Programming: Via software and USB port
      • Set-up Controls: Press and hold up/down volume buttons for 5 seconds to enter channel adjust, use up/down to select channel
    • Indicators - LEDs: Flashes when batteries are low or to indicate charging, solid when fully charged
    • RF
      • Frequency Range: 72.0250 - 75.9500 MHz
      • Number of Channels: Basic Mode: 3 wide Band; Expand Mode: 17 wide band
      • Sensitivity: .6uV typical, 1 uV maximum for 12 dB sinad
      • Frequency Accuracy: ± .005% stability 32 to 122 ºF (0 to 50 ºC)
      • Squelch: Fixed level, automatic on loss of RF signal
      • Antenna Type: Uses earphone/neck loop lanyard and short ear phone cable or standard earphone cable
    • Power
      • Battery Type: Lithium Ion 3.7 Vdc, 1200 mAh
      • Battery Life: 24 Hours of continuous use
      • Battery Charging Time: Fully charged in 2.5 Hours
      • Power Supply: Micro USB connector, 5 V, 500 mA
    • Physical
      • Color: Black
      • Unit Weight: 1.6 oz. (45 g); with batteries 2.4 oz. (68 g)
      • Shipping Weight: 3.2 oz. (91 g) with 1.0 lbs. (454 g) minimum
      • Dimensions (HxWxD): 3.75x2x0.64" (9.6x5x1.7 cm); with belt clip: 3.75x2x0.8" (9.6x5x2.1 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 Class B, Industry Canada ICES-3 (B), RoHS
  • LA-161 Single Ear Bud
    • Audio
      • Frequency Response: 20 Hz - 20 kHz
      • Impedance: 32 ohm +/- 15% @ 1 kHz
      • Headset Input Sensitivity: 82 dB +/- 4dB @ 1 kHz, 1 mW
      • Rated Power Input: 10 mW
      • Max Power Input: 20 mW
    • Interconnections: 3.5 mm Mono
    • Physical
      • Color: Dark Grey
      • Shipping Weight: 1 lb. (0.5 kg)
      • Cable Length: 36 in. (92 cm)
      • Weight: 4 oz. (113 g)
    • Compliance
      • Safety: RoHS
  • LA-304 Signage Kit
    • Shipping Weight: 1 lb (0.5 kg)
    • Weight 6 oz. (170 g)
    • Dimensions Hard Plaque: 7x10” (178x254 mm); Soft Cling: 7x10” (178x254 mm)
  • LA-423 USB Charger
    • Power
      • Power Supply Input: 100-240 V, 50-60 Hz, 0.5 A
      • Power Supply Output: 5.0 VDC, 4.2 A
    • Physical
      • Color: Black
      • Shipping Weight: 1 lbs. (454g)
      • Cable Length: 36" (92cm)
      • Cable Type: 4 - USB to Micro USB Cables (LA-422)
      • Dimensions (HxWxD): 2.44x2.9x1.13" (62x74x29mm)
      • Unit Weight: 7.8 oz (221g)
    • Compliance Standards: UL, FCC, RoHS, CE. RCM

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