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Review Summary
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)
LA-122 Universal Antenna Kit (72 MHz) Including (Grounding Base + Mounting Bracket + Wall/Electrical Box Mounting Plate + Shorting Plate + Antenna Module + Coaxial Cable (25'/7.6m) (Terminated with BNC Connectors on Both Ends) + 2x Telescoping Antennae (72 MHz) + 2x Flexible Antenna (72 MHz) + 2x Hex Kep Nuts + 2x Fiber Washer + 4x Machine Screw (#8-32 x3/4") + 4x Tapping Screw (#8-1/2") + 4x Dry Anchors)
50 Hz - 15 kHz ( +/-3 dB)
SQ enabled 80 dB, SQ disabled 60 dB
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
Rear panel, two (2) phono connectors, unbalanced, -10 / +10 dBu nominal input level adjustable, +30 dBu maximum, impedance 100k ohm
Compression can be turned on/off, slope internally adjustable from 1:1 to 4:1, default 2:1
Cuts and boosts frequencies above 5 kHz
< 2% total harmonic distortion (THD) at 80% deviation
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
Front panel, one (1) 3.5 mm (0.14 in.) stereo connector, unbalanced, adjustable output level, +3 dBu maximum, impedance 10 ohm
Front Panel: Power, test tone on/off, channel up/down, input levels, mix level, contour, monitor volume control Rear Panel: Input 1 Level, (Line, Mic, Mic-Phantom Power), Input 2 level (-10 / +10 dBu), RF power level (low, mid, high)
Compression ratio for audio processor
SQ on/off, process on/off, channel lock
Channel designation, lock status, RF power level, programming (front panel)
Indicates Input 1, Input 2, and Mix audio levels; 10 segment LED's (8 green, 2 red)
Indicated by a green LED when on (front panel)
Red LED illuminates when test tone is enabled
Indicated on the LCD (low, mid, high)
72.025 - 75.950 MHz
17 wide band, 40 narrow band
+/- .005% stability +32 Degree to +122 Degree F (0 Degree to +50 Degree C)
Various antennas available
50 PPM
Up to 1000' (305m)
BNC
80,000 uV at 3 m
6
In line power supply, Listen part number LA-207 (Line cord is determined by the each Country's AC power standards)
100-240 VAC, 50-60 Hz, 0.4 A
12 VDC, 1.3 A, 15.6 W
0.02" (5mm) OD, 0.01" (2.5mm) ID, barrel type
UL, CE, GS, TUV, RoHS
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
RoHS
FCC Part 15, Part 90, Industry Canada
Dark Gray with white silk screening
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)
LR-300-072, LA-125, LA-130, LA-326, LR-100-072, LR-400-072, LR-500-072, LA-277, LA-304, LR-4200-072, LR-5200-072-P1, LR-5200-072, LR-4200-072-P1, LP-40-072-01, LP-41-072-01, LP-50-072-01, LP-51-072-01, LA-303, LDS-5200-072, LDS-4200-072, LDS-4200-072-P0, LDS-4200-072-P1
8.50 x 1.7 x 9.13" (21.5 x 1.75 x 23cm)
Without Power Supply: 2.6 lb (1.2kg)
With Power Supply: 3.5 lb (1.6kg)
50 Hz - 15 kHz ( +/-3 dB)
SQ enabled 80 dB, SQ disabled 60 dB
0.14" (3.5mm) connectors, unbalanced, 0 dBu nominal output level, 16 mW maximum, impedance 32 ohm
< 2% total harmonic distortion (THD) at 80% deviation
Channel up/down, SEEK, volume, Alkaline/NiMH batteries, SQ enable/disable
Channel lock, squelch
Channel designation, battery level, battery charging, RF signal strength and channel lock
Red, illuminated when unit is on, flashes when batteries are low or to indicate charging, flashes when locked and SEEK is pushed
72.025 - 75.950 MHz
17 wide band, 40 narrow band
.6uV typical, 1 uV maximum for 12 dB sinad
+/- .005% stability 32 to 122 Degree F (0 to 50 Degree C)
Programmable in 20 steps, automatic on loss of RF signal
Uses earphone cable
I/P 120 VAC; O/P 7.5 VDC 250 mA, drop in contact points for use with charging cases, power supply not included (LA-208)
0.09" (2.3mm) OD by 0.7 mm ID, barrel type connector 7.5 VDC, center positive < 250 mA, drop in contact points for use with Listen charging cases
Two 2x AA batteries, alkaline or NiMH
30 hours alkaline (LA-361), 15 hours NiMH rechargeable (LA-362)
Fully automatic, 13 hours
RoHS, WEEE, UL, PSE, CE, CUL, TUV, CB
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
RoHS
FCC Part 15, Part 90, Industry Canada
Manually lockable, SEEK/channel select behind the door
LT-800-072-01, LT-700-072, LA-208, LA-904, LA-902, LA-901, LDS-800-072-01
2.75 x 4.25 x 1.50" (7 x 10.8 x 3.8cm)
Without Batteries: 3.9 0z (111g)
With Batteries: 5.8 oz (164g)
The LS-49-072 Listen Premiere Level III system has everything you need for an easy system to specify, install, operate, and meet legislative requirements for assistive listening. Includes NiMH batteries and a charging/carrying case ideal for managing the storage and dispensing of receivers to listeners. Great for larger venues to deliver an optimum range of up to 305 m (1,000 ft). Includes our LR-400 digital display receivers, which make it easier to monitor channel selection, battery level, and signal strength.
Ideal for applications when assistive listening, single channel language interpretation, and personal use are desired. Venues will benefit from managing the LR-400 when locking on one channel is needed, but programming multiple channels are not or if the receiver channel is not changed regularly by the user. The included neck loops and signage ensures the system meets the minimum legislative requirements for venues with a capacity up to 100.
Architectural Specs
Furnish and install an RF wireless assistive listening system for use by the hearing-impaired. The assistive listening system (ALS) shall be capable of broadcasting on 17 wide band channels and 40 narrow band channels and be frequency agile. The ALS system shall have 80 dB SNR or greater, end-to-end. The RF receiver shall be capable of receiving on 57 wide and narrow band channels. The receiver shall have a SNR of 80 dB or greater. The device shall be able to be locked on a single channel. The receiver shall be capable of seeking channels.
The unit shall incorporate a multi-functional LED that indicates power, channel lock, low battery, and battery charging. The device shall have a programmable squelch. The device shall have an audio frequency response of 50 Hz - 15 kHz (' +/-3 dB) at 72 MHz. The device shall incorporate a stereo earphone jack that allows the user to plug in either a mono or stereo earphone(s). The device shall incorporate an LCD display that indicates channel, battery level, low battery, battery charging, RF signal strength and channel lock status. The device shall be able to enable companding with the SQ function.
The unit shall operate off of two (2) AA batteries; alkaline or NiMH. The receiver shall incorporate automatic battery charging circuitry for recharging of NiMH batteries. The device shall have a switchable option for the use of alkaline or NiMH batteries. The receivers and transmitters shall offer a limited lifetime warranty. Listen Technologies Corporation LS-49-072 products are specified.