| General
Information |
| Manufacturer
|
Listen Technologies |
| Manufacturer Part
Number |
ILD122
|
| Product Name
|
Professional Loop Driver, 3.5 Amps
|
| Overview |
| The ILD122 is
a compact (one-half RU) professional audio hearing loop
driver capable of driving loop areas in excess of 2,150
sqft with an unsurpassed clarity of sound for both music
and speech for superior intelligibility. Based on proven
and highly reliable technology it is backed by a 5 year
warranty and Listen technical support. Improved power
output provides outstanding value without compromise. It
boasts all the usual features such as metal loss
correction and is compatible with our unique Ultra-low
Spill technology. The ILD122 is a compact and elegant unit
suitable for freestanding, wall mounting or rack mounting
|
| Features |
|
Area coverage to 2150
sqft
Low lifetime cost
Excellent proven
reliability
Unparalleled sound
quality and intelligibility
Automatic gain control
optimized for speech
High voltage headroom
avoids high frequency clipping
Metal loss corrector
corrects frequency dependent loss from metal
structures
Rack mount brackets
optional
Microphone (XLR) and
line inputs
Extensive input adaptors
available for any audio input requirements
The audio hearing loop
driver shall, in accordance with IEC60118-4,
continuously deliver 3.5 A (RMS) when excited with a
continuous 1 kHz sine wave
It shall cover an area
of at least 2,150 sqft with a room aspect ratio 3:1
according to IEC 60118-4:2006 standard
The driver shall have a
frequency response of at least 80 Hz to 6.5 kHz +/- 3
dB with THD+N less than 0.2 percent
The unit shall
incorporate audio processing to maximize the
intelligibility for individuals with a t-coil equipped
hearing aid
The unit shall
incorporate metal loss correction to rectify frequency
caused adjacent metal structures
The unit shall occupy
one-half rack space
The ILD122 Professional
Loop Driver is specified
|
| Specification |
Audio
|
Frequency Response
|
80 Hz to 6.5 kHz +/- 3 dB
|
Distortion
|
THD+N less than 0.2 percent, 1 kHz
Sine Wave at Full Current
|
AGC
|
Optimized for Speech, Dynamic Range
more than 36 dB
|
Microphone Input
|
XLR Balanced, -70 dBu Input, 200 -
6000 Ohms, +15 VDC Phantom Power
|
Line Input
|
1/4, -30 dBu Input, Overload
Protected
|
Controls
|
Gain Control
|
Front Recessed input level control
|
Metal Loss Correction
|
Correct system frequency response
due to metal structures
|
Cooling
|
Natural Convection
|
Indicators
|
Drive Current Indication
|
4-LED Display Front Panel, 3 dB
Increments
|
Fault Monitoring
|
LED Fault Indicators, Overload,
Overhead, Loop Error
|
Remote Fault Monitouring
|
Relay Contacts
|
Interconnections
|
Slave I/O
|
1/4", Insert Point for SP5 90
degrees Audio Phase Shifter, 0 dBu
|
Loop Connector/s
|
Wieland ST17/2
|
Ancillary
|
+/- 15 VDC
0.15 A
Power Outlet to Power Accessories
|
Loop
|
Perimeter Loop-Coverage
|
1:1 Aspect Ratio: 1290 sq
ft
2:1 Aspect Ratio: 1615 sq ft
3:1 Aspect Ratio: 2150 sq ft
Condition 1: Loop must be 3-6 ft. (1-2 m) above or
below the receiver height
Condition 2: There should be no metal structures in
the plane of the loop
Condition 3: There must be sufficient voltage to
drive the loop |
Power
|
Compliance
|
ETL Listed
|
Power
|
120 VAC
35 W
45 - 65 Hz
Power Switch/LED on Front Panel
|
Drive Voltage
|
7.1 V (RMS) at Maximum Output
Current
|
Drive Current
|
3.5 A (RMS)
5.0 A (Peak) with 1 kHz Sine Wave
|
Drive Current Peaks
|
Short Term more than 7 A
|
Physical
|
Mounting
|
Freestanding or Shelf Mounted
|
Cable Length
|
10 AWG: Max distance at
full current, 357 ft
14 AWG: Max distance at full current, 330 ft
18 AWG: Max distance at full current, 224 ft
22 AWG: Max distance at full current, 125 ft
FB1.8: Max distance at full current, 436 ft
|
Environmental
|
Relative Humidity
|
IP20 Protection, 20 to 90 percent
Relative Humidity, 32 to 95 degrees fahremheit
|
Weight and Dimensions
|
Dimensions
|
8.5" x 1.7" x 8.7" |
Weight
|
6.2 lbs
|
