Model 80 User Guide
Issue 4, March 1997
Studio Technologies, Inc.
Page 19
Specifications
Model 80 Stereo Analog Audio
Distribution Amplifier
Mounting
One space in a standard 19-inch (48.3cm) rack
AC Mains Requirement
100, 120, or 220/240V, ±10%, factory configured,
50/60Hz, 100-120V 0.4A maximum, 220/240V
0.2A maximum
Fusing
Qty: 1
Type: 5 x 20mm time lag (Littelfuse 218-series or
equivalent)
Rating: 0.400A for 100 and 120V mains power,
0.200A for 220/240V mains power
Connectors
Audio: dual, ¼-inch, 3-conductor phone jacks,
gold-plated contacts. (Manufactured by Neutrik.)
Mates with all plugs specified by EIA RS-453.
AC Mains: standard 3-blade plug, meets IEC 320
specifications
Audio Input
Qty: 1, stereo (separate left and right input
connectors)
Loop Through: hardwired in parallel with input
(separate left and right loop-through connectors)
Type: electronically balanced, direct coupled
Input Compatibility: can be connected to bal-
anced or unbalanced signals
Impedance: 24k ohms
Nominal Input Level: 10 to +10dBu
Input Level Control: allows calibration over 10
to +10dBu input range
Right Trim Control: allows adjustment of right
input level over a 3dB range, nominal
Maximum Input Level: +27 dBu balanced,
+21 dBu unbalanced
Common Mode Rejection: 90dB @ DC and 60Hz,
85dB @ 20kHz, 60dB @ 400kHz (typical)
Audio Outputs
Qty: 8, stereo (separate left and right output
connectors)
Type: electronically balanced, direct coupled,
intended to drive loads of 600 ohms or greater,
can be connected balanced or unbalanced
Nominal Output Level: 10dBu (245mV) or
+4dBu (1.228V), each output individually switch
configurable
Maximum Output LevelBalanced: +27dBu into
10k ohms, +26dBu into 600 ohms, Unbalanced:
+21dBu into 10k ohms, +20dBu into 600 ohms
Output Impedance: 50 ohms
Frequency Response: 10Hz-70kHz +0/0.5dB
(down 1dB @ 110kHz)
Distortion (THD+N): 0.004% (measured at +4dBu
input, +4dBu output, 20Hz-20kHz)
S/N Ratio: 91dB (20Hz-20kHz, ref. +4dBu)
Crosstalk: 75dB (1kHz, ref. +4dBu)
LED Indicators
Qty: 5
Function: 1 power present, 4 input level
calibration
Dimensions (Overall)
19.00 inches wide (48.3cm)
1.72 inches high (4.4cm)
6.65 inches deep (16.9cm)
(1 standard rack space)
Weight
7.0 pounds (3.2kg)
Specifications and information contained in this
User Guide subject to change without notice.
Summary of Contents for 80 M80-00273
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