Studio Technologies MODEL-82
1X4 Stereo Analog Audio Distribution Amp, XLR I/O

MODEL-82

Model 82 is a stereo analog audio distribution amplifier. The differential input circuitry is compatible with balanced or unbalanced signals having a nominal level range of –12 dBV to +10 dBu. Laser trimmed, the inputs offer superior common-mode signal rejection. To achieve optimal audio performance the ExactCal calibration section matches the specific input levels with the Model 82's internal gain structure. Two 15-turn trim potentiometers and four LEDs allow fast, precise calibration.

With ExactCal, excellent audio performance can be achieved with little or no hassle. During normal operation, the ExactCal LEDs also serve as convenient signal-present indicators. Standard 3-pin XLR-type connectors are used to interface the input sources with the input circuitry. Manufactured by Neutrik, the connectors feature metal housings for reliable operation.

The Model 82 contains four independent stereo output sections. For compatibility with a wide range of facilities, each output section can be independently configured for a –10 dBV or +4 dBu nominal output level. Each output features an electronically balanced circuit capable of driving balanced or unbalanced loads. Short circuit resistant, the rugged output circuits can drive full signal levels into 600 ohm or greater loads.

Features:

• Stereo input with transformerless laser-trimmed circuitry
• ExactCal section allows precise input-level calibration
• 15-turn input trim potentiometers
• 3-pin Neutrik XLR-type connectors
• Four independent stereo outputs
• Configurable –10 dBV or +4 dBu nominal output levels
• Inputs and outputs support balanced or unbalanced operation
• Internal ±17 V power supply with toroidal mains transformer
• Single rack-space mounting

Specifications:

Audio Input: 1, stereo
Type: electronically balanced, compatible with balanced or unbalanced signals
Impedance: 24 k ohms
Nominal Input Level: –12 dBV to +10 dBu
Input Level Controls: 2, 15-turn trim potentiometers

Audio Outputs: 4, stereo
Type: electronically balanced, direct coupled
Compatibility: intended to drive balanced or unbalanced loads of 600 ohms or greater
Output Impedance: 50 ohms
Nominal Output Level: –10 dBV or +4 dBu, each output individually configurable
Maximum Output Level: +27 dBu into 10k ohms, +26 dBu into 600 ohms
Frequency Response: 10 Hz-70 kHz +0/–0.5 dB (down 1 dB @ 110 kHz)
Distortion (THD+N): 0.004%
S/N Ratio: 91 dB (20 Hz-20 kHz, ref. +4 dBu)
Crosstalk: 75 dB (1kHz, ref. +4 dBu)

Connectors:
Audio: 3-pin XLR-type, manufactured by Neutrik
AC Mains: standard 3-blade IEC-type

AC Mains Requirement: 100, 120, or 220/240 V, ±10%, factory configured, 50/60 Hz

Dimensions (Overall):
19.00 inches wide (48.3 cm)
1.72 inches high (4.4 cm)
6.65 inches deep (16.9 cm)

Mounting: one space in a standard 19-inch rack

Weight: 7.0 pounds (3.2 kg)

Our Part #  MODEL-82