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The Model 32A
Talent Amplifier is a self-contained listen-only “belt pack” unit intended for
use by on-air talent or production personnel. It’s directly compatible with the
Studio Technologies Model 2 Central Controller
as well as other standard IFB or party-line intercom circuits. The Model 32A is
powered by, and receives audio from, the connected IFB or intercom circuit. A
single 3-conductor microphone-type cable links the Model 2’s talent amplifier
output with the Model 32A’s input. Each Model 32A contains both a male and a
female 3-pin XLR-type connector, allowing simple “loop through” connection of
multiple units. Up to four talent amplifiers can be connected to, and powered
by, a single Model 2 Central Controller. A source select switch allows audio
from either Model 2 channel 1 or Model 2 channel 2 to be routed to the monaural
output. For flexibility the audio output is provided on both ¼-inch and 3.5 mm
jacks. An LED indicator lights whenever input power is present, providing setup
assistance and user confidence. The Model 32A is housed in a lightweight, yet
rugged, aluminum housing. A belt clip allows it to be directly attached to
clothing or accessories. An optional mounting adapter is available to allow the
Model 32A to be installed in a permanent location.
The Model 32A’s
output is intended to be connected to talent earpieces or headsets. The user is
provided with a source select switch and a rotary level control. The switch is
used to select which of the two audio inputs is routed to the output. In the
switch’s channel 1 position audio associated with XLR pin 2 is sent to the
output. When the switch is set to its channel 2 position audio associated with
XLR pin 3 is selected. By design, the Model 32A’s level control cannot be set to
fully attenuate (“mute”) the audio output. This helps to minimize the chance
that users will never accidentally miss important “cues” from directors or
producers. While audio quality is not normally considered a factor in IFB or
intercom systems, the Model 32A is built to “pro audio” standards. This helps to
ensure that the best possible audio reproduction is provided.
The Model 32A is
an update of the popular Model 32 Talent Amplifier. The Model 32A includes the
addition of a 3.5 mm output jack, along with updated internal circuitry. In all
ways the Model 32A meets or exceeds the performance of its predecessor.
In addition to
working with the Model 2 Central Controller, the Model 32A is compatible with
virtually every standard IFB and party-line intercom circuit, including those
associated with equipment from Telex®/RTS®, Clear-Com®, and Studio Technologies.
This type of circuit typically uses a 3-pin XLR-type connector for interfacing
with connected equipment. Electrically, XLR pin 1 serves as common for DC power
and audio; pin 2 provides DC power and, in the case of a dual-channel circuit,
DC power and channel 1 audio; pin 3 provides channel 2 audio for dual-channel
systems, or channel 1 audio in single-channel systems."
Model
32A Specifications
Applications:
directly compatible with talent amplifier output on Model 2 Central Controller.
Also compatible with standard single- and dual-channel IFB and party-line
intercom circuits
Connectors:
Input:
3-pin female XLR-type
Loop Through: 3-pin male XLR-type
Output: ¼-inch and 3.5 mm 2-conductor jacks; sleeve common, tip “hot,” ring not
used
IFB/Intercom Input Wiring Scheme:
Pin 1:
common for DC and audio
Pin 2: DC with channel 1 audio (dual-channel circuits) or DC only
(single-channel circuits)
Pin 3: channel 1 audio (single-channel circuits) or channel 2 audio
(dual-channel circuits)
Power Requirement: 18-35 volts DC, 15 milliameres quiescent, 40 milliamperes
maximum
Output:
Compatibility: intended for connection to mono (2-conductor) headsets or
earpieces with nominal impedance of 150 ohms or greater
Type: voltage driver
Input/Output Gain: 28 dB, maximum
Maximum Output Voltage: 8 volts peak-to-peak, 1 kHz, 150 ohm load
Frequency Response: 40 Hz-20 kHz, ±1 dB, 150 ohm load
Distortion (THD+N): 0.03%, 1 kHz, 150 ohm load, 0 dBu out
Options:
Model 36 Mounting Adapter allows Model 32A to be permanently mounted
Dimensions (Overall):
3.25
inches wide (8.3 cm)
1.80 inches high (4.6 cm)
3.95 inches deep (10.0 cm)
Weight:
0.6 pounds (0.3 kg)
Specifications
subject to change without notice.
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