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$299.99
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Review Summary
Accidents happen. Protect your favorite Adorama products and purchase a protection plan to stay covered from accidental damage, mechanical or electrical failures, and more.
If we can’t fix it, we’ll replace it at no additional cost.
Protect your product from drops, spills, and more.
Enjoy your gear without fear. We have you covered!
When regular use of your product over time results in mechanical or electrical failure.
We will never charge you a deductible after the purchase of a plan.
Our claims process is simple & easy and our customer service team is happy to help.
Adorama Protect powered by Extend is available for purchase to customers in the United States. Not available for international or U.S. territories purchases. Plans on open box items do not cover pre-existing damage.
Adorama Protect plans are available for ABS clients. If you have any questions or require assistanse, please call 800-223-2500
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LA-304 Assistive Listening Notification Signage Kit Including (Hard Plaque + Static Cling Window Sticker)
LA-422 USB to Mico USB Cable
LA-381-01 Intelligent 12-Unit Charging Tray
LA-382 Intelligent Cable Management Unit
LA-904 Listen Dispensing Log Book
63 Hz - 15 kHz (+/- 3 dB)
Mono: > 60 dBStereo: > 52 dB
< 2% total harmonic distortion (THD)
Mono Input (Rear Panel). Female-XLR and 1/4 in. combo connector, balanced, 0/-55 dBu (line/mic) nominal input level adjustable; +21/-30 dBu (line/mic) maximum input level; impedance 20k/1k ohms (line/mic); phantom power +12 VDC
Stereo or Mono Input (Rear Panel). Two (2) Phono connectors, unbalanced, -10/+10 dBu nominal input level adjustable, +30 dBu maximum, impedance 100k
Compression can be turned on/off.
Cuts and boosts frequencies above 5 kHz
Front panel. One (1) 3.5 mm (0.14 in.) connector, unbalanced, adjustable output level, +7 dBu maximum, impedance 10 ohms. 100 mW, 32 ohms
Input 1 and Input 2 Mixed Output (Rear panel). Two (2) Phono connectors, unbalanced, -10 dBu nominal output level, +19 dBu maximum, impedance 10 ohms
Stereo on/off, Processing on/off
Power, Test Tone on/off, Channel up/down, Input Level, Transmit Level, Contour, Monitor Level
Input 1 Level (Line, Mic, Mic-Phantom Power), Input 2 Level (-10/+10 dBu)
Compression ratio for audio processor. Slope adjustable from 1:1 to 4:1. Default 2:1
Channel designation, lock status, RF Carrier, programming (front panel)
Red LED illuminates when the unit is powered up (front panel)
Indicates Input 1, Input 2, and Transmit audio levels. 10 segment LED's (8 green, 2 red)
Indicated by a green LED when on (front panel)
Indicated by a green LED when on (front panel)
Indicates carrier is active on the LCD Display (front panel)
Red LED illuminates when test tone enabled (front panel)
One (1) BNC connector, for connection from additional transmitter(s). 50 mV, 50 ohm, -15 dBm
Two (2) BNC connectors, for connection to radiator(s) and/or additional transmitter(s). 50 mV, 50 ohm, -15 dBm
2.3 MHz, 2.8 MHz, 3.3 MHz, 3.8 MHz
Four (4) channels. Selectable one (1) channel per transmitter (mono or stereo)
+/- .005% stability 32 to 122 Degree F (0 to 50 Degree C)
Carrier will shut off when no audio is present for 30 minutes to preserve radiator life.
50 PPM
In-line switching mode power supply, Listen part number LA-205
100-240 VAC, 47-63 Hz
30 VDC, 1.5 A
RJ-45
Two (2) RJ-45 jacks. For remote powering up to two (2) radiators
14 Degree F (-10 Degree C) to +104 Degree F (40 Degree C)
-4 Degree F (-20 Degree C) to +122 Degree F (50 Degree C)
0 to 95% relative humidity, non-condensing
FCC Part 15, Industry Canada, CE, RoHS, UL
Dark Gray
One (1) rack space high (1U), 1/2 rack space wide. One (1) or two (2) transmitters can be mounted in a single rack space. Optional Rack mount (LA-326) not included.
North America, Type B, (LT-82-01)Asia, UK, Type G, (LT-82-02)Euro Type J, (LT-82-03)
LA-112, LA-113, LA-140-GY, LA-89, LR-42, LR-44, LA-391, LA-390, LA-274, LA-277, LA-278, LA-279, LA-304, LA-303, LR-4200-IR, LR-5200-IR, LR-4200-IR-P1, LR-5200-IR-P1, LP-40-IR-01, LP-41-IR, LP-50-IR, LP-51-IR, LR-X200-IR
8.50 x 1.75 x 9.13" (21.5 x 1.75 x 9.13cm)
Without Power Supply: 2.6 lb (1.18kg)
With Power Supply: 3.8 lb (1.72kg)
< 2% total harmonic distortion (THD) at 80% deviation
Two (2) 3.5 mm (0.14 in.) connectors, unbalanced, 0 dBu nominal output level, 16 mW maximum, impedance 32 ohm, accepts mono or stereo phone plug or LA-430 Intelligent Ear Phone/Neck Loop Lanyard
63 Hz - 15 kHz ( +/-3 dB)
> 60 dB
Power on/off and volume up/down
Via software and USB port, Auto Seek, Jack Sense, Squelch, Auto Power, Auto Off, Stereo, Brightness, Channel Name
Press and hold up/down volume buttons for 5 seconds to enterchannel adjust, use up/down to select channel
OLED - Channel designation, battery level, unit number, charging status, volume status
Flashes when batteries are low or to indicate charging, solid when fully charged
2.3 MHz, 2.8 MHz, 3.3 MHz, 3.8 MHz
Four (4) selectable channels
+/- .005% stability 32 to 122 Degree F (0 to 50 Degree C)
FM Wideband, +/-50 kHz deviation max, 50 uS de-emphasis
30,000 sq. ft (2787 sq. m) single channel with LT-84/LA-141 or 40,000 sq. ft (3716 sq. m) single channel with LT-82/LA-140
Programmable in 20 steps, automatic on loss of IR signal
Turns unit off after a specified time of no IR signal, default is 30 minutes
Better than one (1) nW/cm2 @40 dB SNR
Micro USB connector, 5 V, 500 mA
Lithium Ion
8 Hours of typical use
Fully charged in 2.5 Hours
14 to 104 Degree F (-10 to 40 Degree C)
-4 to 122 Degree F (-20 to 50 Degree C)
0 to 95% relative humidity, non-condensing
FCC Part 15, ICS-03, CE, RoHS, WEEE, ADA 706, CBC 11B-706
LA-140-GY, LT-82, LA-365, LA-401, LA-381, LA-405, LA-404, LA-403, LA-402, LA-380, LA-430, LT-84, LA-141, LA-382
Flat Black
Without Belt Clip: 3.75 x 2.0 x 0.64" (9.6 x 5.0 x 1.7cm)
With Belt Clip: 3.75 x 2.0 x 0.80" (9.6 x 5.0 x 2.1 cm)
Without Batteries: 1.9 oz (53.9g)
With Batteries: 2.8 oz (79.4g)
Where high-quality audio transmission is a must, the ListenIR iDSP Standard System stands out as a comprehensive solution. This advanced system, complete with an LT-82-01 Transmitter and four LR-4200-IR Receivers, is specifically designed to cater to mid- to large-sized venues, accommodating up to 100 seats.
The ListenIR iDSP Standard System is a product of Listen Technologies, a brand renowned for its innovative and reliable listening solutions. This system is not just a product, but a complete package that provides an immediate assistive listening solution for various venues, including convention centers, theaters, courtrooms, and training spaces.
At the core of this system is the LT-82 Stationary IR Transmitter and LA-140 Stationary IR Radiator, providing outstanding coverage without gaps, effectively transmitting up to a massive 40,000 sq. ft. area. The LR-4200-IR Intelligent DSP IR Receivers included in the package are designed to deliver clear, high-quality sound, while the LA-381 Intelligent 12-Unit Charging Tray ensures that the system can grow and adapt to your evolving needs.
The ListenIR iDSP Standard System boasts a superior Signal to Noise Ratio (SNR) of 60 dB or better and a Total Harmonic Distortion (THD) of less than 2%, ensuring clear and distortion-free sound. The system's audio frequency response ranges from 63 Hz to 15 kHz, +/- 3db, providing a wide spectrum of sound for optimal listening.
The system is equipped with two mixing audio inputs, one balanced XLR/phone input, and one unbalanced stereo RCA input, offering versatility in connectivity. It also features an audio processor capable of automatic gain control and limiting, ensuring consistent sound quality.
The system's receivers are intelligent, providing customized audio to either earphones or the integrated neck loop based on what is connected. They also incorporate a multi-functional OLED display that indicates battery status, inventory number, volume level, and a customizable channel name.
With its unique iDSP noise reduction technology, the ListenIR iDSP Standard System ensures a clear, high-quality audio experience. The receivers are fully programmable via PC software, and they incorporate automatic battery charging circuitry and use a non-proprietary lithium-ion battery, adding to the system's convenience and ease of use.
In conclusion, the ListenIR iDSP Standard System is a durable, advanced, and comprehensive solution for any venue seeking to provide an exceptional listening experience.