• 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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Specifications

Certifications
Compliance RF
FCC Part 15, Part 90, Industry Canada
Compliance Standards
FCC Part 15 Class B, Industry Canada ICES-3 (B), RoHS
Compliance Safety
RoHS
Dimensions
Physical Dimensions (WxHxD)
8.5x1.75x9.13" (21.5x4.5x23cm)Color: Dark Grey with white silk screeningUnit
Physical Length
21 cm (8.25 in.)Color:
Dimensions Hard Plaque
7x10” (178x254 mm)
Weight
Weight with Power Supply
2 kg (4.5 lbs)Shipping
Dark GreyShipping Weight
0.5 kg (1 lb)Diameter: 1.1cm (0.44")Weight: 45g (1.6 oz)
Electrical
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
Power Battery Type
Lithium Ion 3.7 Vdc, 1200 mAhBattery
Power Power Supply Input
100-240 V, 50-60 Hz, 0.5
Audio
Frequency Response
50 Hz - 15 kHz (±3 dB)
Signal-to-Noise Ratio
62 dB (A Weighted)
Total Harmonic Distortion
1% at 80% deviation
Audio Frequency Response
50 Hz - 15 kHz (±3 dB)Signal-to-Noise
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 ohmHeadphone
Operation
-10 ºC (14 ºF) to +40 ºC (104 ºF)Temperature -
Audio System Distortion
< 1% total harmonic distortion (THD) at 80% deviationOutput(s): Two (2) 3.5 mm (0.14 in.) connectors, unbalanced, 0 dBu nominal output level, 50 mW maximum, impedance 32 ohmSystem
Input Sensitivity
82 dB +/- 4dB @ 1 kHz, 1 mWRated
Connectivity
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
Supply Input
100-240 VAC, 50-60 Hz, 0.4
APower Supply Output
12 VDC, 1.3 A, 15.6
WPower Supply Connector
5.0 mm (0.02 in.) OD, 2.5 mm (0.01 in.) ID, barrel typeCompliance: UL, CE, GS, TÜV, RoHS
USB Portset-up Controls
Press and hold up/down volume buttons for 5 seconds to enter channel adjust, use up/down to select channel
Power Input
10 mWMax
Construction
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)
Physical Color
BlackUnit 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) minimumDimensions (HxWxD): 3.75x2x0.64" (9.6x5x1.7 cm); with belt clip: 3.75x2x0.8" (9.6x5x2.1 cm)
Environmental
Operating Temperature
-10 ºC (14 ºF) to +40 ºC (104 ºF)
Storage Temperature
-20 ºC (-4 ºF) to +50 ºC (122 ºF)
Relative Humidity
0 to 95% non-condensing
Shipping
Shipping Weight
5.8 lbs. (2.6 kg)
Weight
2.7 kg (6 lbs)Rack
General
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 VDCAudio Input 2: Rear panel, two (2) phono connectors, unbalanced, -10 / +10 dBu nominal input level adjustable, +30 dBu maximum, impedance 100k ohmAudio
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 processorProgramming: Process on/off, channel lock
Indicators LCD Channel
Designation, lock status, RF power level (front panel)Audio
Tone
Red LED illuminates when test tone is enabledRF
RF Frequency Range
(A) 72.100, (E) 72.900, (H) 75.900Number of Channels: 3 wide bandFrequency Accuracy: ± .005% stability 0 to 50ºC (32 to 122º)Antenna Type: Various antennas availableTransmitter Stability: 50 PPMTransmission 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
Storage
-20 ºC (-4 ºF) to +50 ºC (122 ºF)Relative
Interconnections
BNC
MHzNumber of Channels
57 (17 wide, 40 narrow)Typical
Range
Range up to 122 m / 400 ft.
Indicators - LEDs
Flashes when batteries are low or to indicate charging, solid when fully charged
Life
24 Hours of continuous useBattery
HoursPower Supply
Micro USB connector, 5 V, 500 mA
LA-304 Signage Kit
Weight 6 oz. (170 g)
Soft Cling
7x10” (178x254 mm)
RF
Number of Channels
Three (3) Wide Band - (A) 72.100, (E) 72.900, (H) 75.900
Transmission Range
600 ft. (182.88 m) with LA-123 antenna
Physical
Box Dimensions (H x W x D)
18" x 12.25" x 3"
Compliance
Standards
FCC Part 15 Class B, Industry Canada ICES-3 (B), RoHS
Indicators
Processing
Compression can be turned on/off. Slope internally adjustable from 1:1 to 4:1. Default 2:1Contour: Cuts and boosts frequencies above 5 kHzDistortion: < 2% total harmonic distortion (THD) at 80% deviationAudio
Power
Power
Indicated on the LCD (low, mid, high)
Charging Time
Fully charged in 2.5

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