• Listen Technologies LS-30-072 iDSP Essentials Starter Stationary RF System
1 7

Listen Technologies iDSP Essentials Stationary RF System ADA Compliant Assistive Listening | Beginner | 72 MHz | Standard

Listen Technologies iDSP Essentials Stationary RF System ADA Compliant Assistive Listening | Beginner | 72 MHz | Standard

SoundPro Item: 57594 | Part Number: LS-30-072

$1,154.00
$1,292.00 $1,154.00
Your Price Sold out
MSRP: $1,292.00 | MAP: $1,154.00

Usually ships in 5-7 business days

  • Three Selectable Channels Enable Multi-Room Installations Without Interference
  • Intelligent DSP Receivers Prevent Frequency Drift For Consistent Signal Lock
  • Universal Ear Speakers And Neck Loop Lanyards Accommodate User Preferences
  • Telescoping Antenna Optimizes Coverage For Irregular Room Geometry
  • Included Notification Signage Kit Satisfies ADA Posting Requirements
Log in or register for YOUR best price

The Listen iDSP Essentials Stationary RF System delivers a complete assistive listening solution for facilities serving fewer than 50 patrons. Designed for houses of worship, courtrooms, and community centers requiring 2010 ADA compliance, the system provides crystal-clear audio through digital signal processing and three-channel operation that minimizes interference in multi-room installations.

The included transmitter accepts universal audio inputs and broadcasts across the 72 MHz band with 62 dB signal-to-noise ratio. Two intelligent DSP receivers maintain digital tuning lock to prevent channel drift during services or proceedings. Telescoping antenna placement and included signage kit enable integrators to meet accessibility mandates while maintaining professional aesthetics. USB charging infrastructure and lanyards streamline patron checkout and return workflows.

This entry-level configuration suits venues transitioning from outdated infrared systems or implementing assistive listening for the first time. Listen Technologies backs the system with 30-day demonstration programs and technical support for installers managing compliance-driven retrofits.

View full details

Specifications

Certifications
Compliance RF
FCC Part 15, Part 90, Industry Canada
Compliance Standards
FCC Part 15 Class B, Industry Canada ICES-3 (B), RoHS
Dimensions
Physical Dimensions (WxHxD)
8.5x1.75x9.13" (21.5x4.5x23cm)Color: Dark Grey with white silk screeningUnit
Interconnections Thread Diameter
10-32
Physical Length
99 cm (39.00 in.)Color:
Dimensions Hard Plaque
7x10” (178x254 mm)
Weight
Weight with Power Supply
2kg (4.5 lbs)Shipping
BlackShipping Weight
0.5 kg (1 lb)Diameter: 1.3 cm (0.31")Weight: 31g (1.10 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
Signal-to-Noise Ratio
62 dB
Frequency Band
72 MHz
Channels
3
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
-10ºC (14ºF) to +40ºC (104ºF)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
Frequency Response
50 Hz - 15 kHz (±3 dB)System
Sensitivity
115 dB +/- 4dB @ 1 kHz, 1 mWRated
Neck Loop Field Strength
400 mA/m (+/- 3dB)Neck
Loop Frequency Response
100Hz to 5kHz (+/- 3 dB ref 1kHz)
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
50 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: 1.2kg (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)
Included Items
Transmitter
One (1) LT-803-072-01 3-Channel RF Transmitter (72 MHz)
Antenna
One (1) LA-106 Telescoping Top Mounted Antenna (72 MHz)
Receivers
Two (2) LR-3200-072 Intelligent DSP RF Receiver (72 MHz)
Ear Speakers
Two (2) LA-401 Universal Ear Speaker
Lanyards
Two (2) LA-430 Intelligent Ear Phone/Neck Loop Lanyard
Audio Cable
One (1) LPT-A107-B Dual RCA to Dual RCA Cable 6.6 ft. (2 M)
Charger
One (1) LA-423-01 4-Port USB Charger
Signage
One (1) LA-304 Assistive Listening Notification Signage Kit
Environmental
Humidity
0 to 95% relative humidity, non condensing
Shipping
Shipping Weight
7.0 lbs. (3.2 kg)
Weight
2.7kg (6 lbs)Rack
Physical Shipping Weight
1 lb (0.5kg)Cable
Identifiers
Length
6.6 ft (2m)Unit
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
-20ºC (-4ºF) to +50ºC (122ºF)Relative
MHzNumber of Channels
57 (17 wide, 40 narrow)Typical
Range
Range up to 198 m / 650 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
Interconnections
Male 3.5 mm (TRS)
Interconnections Connection to Receiver
Male 3.5 mm (TRRS) to Male 3.5 mm (TRRS)Connection to
Short Ear Phone
Female 3.5 mm (TRS)
LA-304 Signage Kit
Weight 6 oz. (170 g)
Soft Cling
7x10” (178x254 mm)
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

Why Choose SoundPro?

Since 1972, SoundPro has been the trusted source for audio, video, and lighting gear. Whether you're starting your AVL journey or are a seasoned professional, we're here to help you every step of the way.

Start Shopping

  • Certified Account Managers

    Our Account Managers, with 16+ industry certifications, are ready to find your solution.

  • Personalized Pricing

    We know every project is unique. Get a personalized quote anytime you need it

  • Fast Shipping & Local Pickup

    In stock items ship same day if ordered by 4pm CST. Pickup offered in Irving, TX.

  • Accountability from Real People

    We aim for a smooth, transparent experience by setting and sticking to clear expectations.

  • Easy Payments & Financing

    We accept all major credit cards and also offer financing through our partners.

1 2