Listen Technologies LS-57-216 Listen iDSP Advanced Level II Stationary RF System, LT-800-216 Transmitter, 4x LR-5200-216 Receiver, LA-326 Rack Mount, 216 MHz

SKU: LTLS57216 MFR: LS-57-216
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Key Features

  • Crystal-clear audio: Experience superior sound quality with this assistive listening system.
  • Universal compatibility: Connects easily with existing audio systems for seamless integration.
  • Enhanced accessibility: Ideal for theaters, classrooms, and meeting rooms, improving inclusion.
  • Long-lasting battery: Enjoy up to 8 hours of continuous use with the efficient receiver design.
  • Easy to use: Intuitive controls and a clear display make operation simple for all users.
  • Reliable RF transmission: Ensures a stable signal up to 3,000 ft, perfect for large venues.
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Listen Technologies LS-57-216 Specifications

Includes

Includes

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  • Additional Included items

    LA-122 Universal Antenna Kit Including (Grounding Base + Mounting Bracket + Wall/Electrical Box Mounting Plate + Shorting Plate + Antenna Module + (25'/7.6m) Coaxial Cable (Terminated with BNC Connectors on Both Ends) + 2x Telescoping Antennae (216 MHz) + 2x Flexible Antenna (216 MHz) + 2x Hex Kep Nuts + 2x Fiber Washer + 4x Machine Screw (#8-32 x3/4") + 4x Tapping Screw (#8-1/2") + 4x Dry Anchors)

  • Additional Included items (Contd.)

    LA-326 Universal Rack Mounting Kit Including (Left Side Bracket + Right Side Long Bracket + Right Side Short Bracket + Dual Mount Center Bracket + 10x Machine Screws)

    LA-304 Assistive Listening Notification Signage Kit Including (Hard Plaque + Static Cling Window Sticker)

Transmitter: Audio

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  • Frequency Response

    50 Hz - 15 kHz ( +/-3 dB)

  • Signal-to-Noise Ratio

    SQ enabled 70 dB, SQ disabled 50 dB

  • Audio Input 1

    Rear panel, one (1) Female XLR or 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) 3.5mm (0.14") stereo connector, unbalanced, adjustable output level, +3 dBu maximum, impedance 10 ohm

Transmitter: Controls

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  • 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

    SQ on/off, process on/off, channel lock

Transmitter: Indicators

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  • LCD

    Channel designation, lock status, RF power level, programming (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)

Transmitter: RF

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  • Frequency Range

    216.0125 - 216.9875 MHz

  • Number of Channels

    19 wide band, 38 narrow band

  • Frequency Accuracy

    +/- .005% stability +32 Degree to +122 Degree F (0 Degree to +50 Degree C)

  • Antenna Type

    Various antennas available

  • Transmitter Stability

    50 PPM

  • Transmission Range

    Up to 3,000 ft. (914 m)

  • Antenna Connector

    BNC

  • Output Power

    100 mW (max allowed by FCC)

  • Number of Simultaneous Transmitters

    3

Transmitter: Power

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  • 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

    0.02" (5.0mm) OD, 0.01" (2.5mm) ID, barrel type

  • Compliance

    UL, CE, GS, TUV, RoHS

Transmitter: Environmental

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  • Temperature - Operation

    14 Degree F (-10 Degree C) to 104 Degree F (+40 Degree C)

  • Temperature - Storage

    -4 Degree F (-20 Degree C) to 122 Degree F (+50 Degree C)

  • Relative Humidity

    0 to 95% relative humidity, non condensing

Transmitter: Compliance

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  • Safety

    RoHS

  • RF

    FCC Part 15, Part 90, Industry Canada

Transmitter: Physical

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  • Color

    Dark Gray with white silk screening

  • 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)

  • Compatability

    LA-130, LA-326, LA-277, LA-304, LR-100-216, LR-400-216, LR-500-216, LR-5200-216-P1, LR-5200-216, LR-4200-216-P1, LR-4200-216, LP-40-216, LP-41-216, LP-50-216, LP-51-216, LA-303

  • Dimensions (W x H x D)

    8.50 x 1.75 x 9.13" (21.5 x 4.5 x 23cm)

  • Weight

    2.6 lb (1.2kg)
    With Power Supply: 3.5 lb (1.6kg)

Receiver: Audio

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  • System Distortion

    < 2% total harmonic distortion (THD) at 80% deviation

  • Output/s

    Two (2) 3.5mm (0.14") connectors, unbalanced, 0 dBu nominal output level, 16 mW maximum, impedance 32 ohm

  • System Frequency Response

    50 Hz - 15 kHz ( +/-3 dB)

  • System Signal to Noise Ratio

    SQ enabled 70 dB, SQ disabled 50 dB

Receiver: Controls

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  • User Controls

    Power, up/down volume, Listen button for end user channel selection

  • 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

Receiver: Indicators

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  • LEDs

    White, illuminated when unit is on, flashes when batteries are low or to indicate charging, solid when fully charged

  • Display

    Channel designation, battery level, unit number, charging status

Receiver: RF

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  • Frequency Range

    216.0125 - 216.9875MHz

  • Number of Channels

    19 wide band, 38 narrow band

  • Sensitivity

    .6uV typical, 1 uV maximum for 12 dB sinad

  • Frequency Accuracy

    +/- .005% stability 32 to 122 Degree F (0 to 50 Degree C)

  • Squelch

    Programmable in 20 steps, automatic on loss of RF signal

  • Antenna Type

    Uses ear phone/neck loop lanyard and short ear phone cable or standard earphone cable

Receiver: Power

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  • Power Supply

    Micro USB connector, 5 V, 500 mA

  • Battery Type

    Lithium-ion

  • Battery Life

    8 Hours of continuous use

  • Battery Charging Time

    Fully charged in 2 Hours

Receiver: Environmental

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  • Temperature - Operation

    14 to 104 Degree F (-10 to 40 Degree C)

  • Temperature - Storage

    (-)4 to 122 Degree F (-20 to 50 Degree C)

  • Relative Humidity

    0 to 95% relative humidity, non-condensing

Receiver: Compliance

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  • Standards

    FCC Part 15, Part 90, Industry Canada, RoHS

Receiver: Physical

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  • Compatibility

    LT-800-216-01, LT-700-216

  • Color

    Dark Gray

  • Dimensions (H x W x D)

    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 2.1cm)

  • Weight

    Without Batteries: 1.6 oz (45.4g)
    With Batteries: 2.4 oz (68.1g)

About Listen Technologies LS-57-216

For professional venues seeking an exceptional audio assistance solution, the LS-57-216 Listen iDSP Advanced Level II Stationary RF System stands out as a superior choice. This system is designed to deliver crystal-clear RF signals through the LT-800-216 216 MHz transmitter, ensuring that up to 100 attendees can benefit from high-quality sound transmission. The inclusion of four LR-5200-216 Advanced iDSP receivers guarantees an unparalleled listening experience, with each receiver boasting an impressive 20 dB reduction in hiss compared to other RF receivers available in the market.

Listeners are afforded the luxury of choice with multiple channels on each unit, making this system ideal for settings that require language interpretation or the provision of alternate audio streams. The advanced programmable features of the receivers allow for customization to the specific channels required by the venue, while also providing the option to lock out unused channels for added security.

The receivers are powered by rechargeable Lithium-ion batteries, offering both longevity and cost efficiency, with a rapid recharge time of just 2.5 hours. The system's adaptability is further enhanced by the inclusion of a universal antenna and a universal rack mounting kit, LA-326, facilitating seamless integration into almost any permanent audio setup.

Comprehensive accessories such as universal ear speakers, neck loops/lanyards designed with integrated DSP-driven neck loops for telecoil-equipped hearing aids and cochlear implants, a 4-port USB charger, and assistive listening notification signage kit are provided. These not only cater to the diverse needs of your audience but also ensure that your venue meets compliance standards.

The architectural specifications of the LS-57 system are meticulously crafted to serve the hearing-impaired with excellence. With the ability to broadcast on 57 channels, a signal-to-noise ratio exceeding 70 dB, and an audio frequency response ranging from 50 Hz to 15 kHz (±3 dB), the system delivers high-fidelity sound. The unique DSP SQ noise reduction technology, programmable squelch circuit, and multifunctional display add layers of functionality and user-friendliness. The USB connector serves multiple purposes, including inventory control, setup, charging, and firmware upgrades, while the automatic battery charging circuitry simplifies maintenance.

In summary, the LS-57-216 Listen iDSP Advanced Level II Stationary RF System from Listen Technologies Corporation is a meticulously engineered product that offers superior audio assistance, customizable features, and a comprehensive set of accessories to enhance the auditory experience for the hearing-impaired in a variety of professional settings.

Listen Technologies LS-57-216 Features

  • Advnaced-level 216 MHz RF system with transmitter and four LR-5200-216 advanced iDSP receivers
  • LT-800-216 transmitter, universal antenna kit, and rack mounting kit for installing the system in any permanent audio setup
  • Lithium-ion rechargeable batteries in each receiver for long service and added affordability
  • Includes four universal ear speakers and two integrated neck loops/lanyards
  • Four-port USB charger, compliance signage, and RCA cable also included for immediate set up

Product Documents

User Manual

Key Features

  • Crystal-clear audio: Experience superior sound quality with this assistive listening system.
  • Universal compatibility: Connects easily with existing audio systems for seamless integration.
  • Enhanced accessibility: Ideal for theaters, classrooms, and meeting rooms, improving inclusion.
  • Long-lasting battery: Enjoy up to 8 hours of continuous use with the efficient receiver design.
  • Easy to use: Intuitive controls and a clear display make operation simple for all users.
  • Reliable RF transmission: Ensures a stable signal up to 3,000 ft, perfect for large venues.

What's in the box:

  • LT-800-216 Stationary RF Transmitter (216 MHz)
  • 4x LA-401 Universal Ear Speaker
  • 2x LA-430 Intelligent Earphone/Neck Loop Lanyard
  • LA-423 4-Port USB Charger
  • LPT-A107-B Dual RCA to Dual RCA Cable (6.6'/2m)
  • 4x LR-5200-216 Intelligent DSP RF Receiver (216 MHz)
  • (See Specification Section for Additional Included Items)
  • Listen Technologies Lifetime Limited Warranty