Studio Technologies 81 - Manual (Page 14)

Issue 1, January 2000 Model 81 User Guide
Page 14 Studio Technologies, Inc.
Specifications
Audio Input: 1, stereo
Type: electronically balanced, direct coupled
Input Compatibility: can be connected to
balanced or unbalanced signals
Impedance: 24k ohms
Nominal Input Level: –12dBV to +6dBu
Input Level Control: 15-turn trim potentiometers
allow calibration over –12dBV to +6dBu input
range
Maximum Input Level: +27dBu
Common Mode Rejection: 90dB @ DC and
60Hz, 85dB @ 20kHz, 60dB @ 400kHz (typical)
Audio Outputs: 8, stereo
Type: electronically balanced, direct coupled,
intended to drive loads of 600 ohms or greater,
can be connected balanced or unbalanced
Nominal Output Level: –10dBV or +4dBu, each
output individually switch configurable
Maximum Output Level—Balanced: +27dBu
into 10k ohms, +26dBu into 600 ohms
Maximum Output Level—Unbalanced: +21dBu
into 10k ohms, +20dBu into 600 ohms
Output Impedance: 50 ohms
Frequency Response: 10Hz-70kHz +0/–0.5dB
(down 1dB @ 90kHz)
Distortion (THD+N): 0.004% (measured at
+4dBu input, +4dBu output, 20Hz-20kHz)
S/N Ratio: 92dB (20Hz-20kHz, ref. +4dBu on
input and output)
Crosstalk: 86dB (1kHz, ref. +4dBu on input and
output)
LED Indicators: 5, 1 power present, 4 input level
calibration
Fusing: 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 Input: 2, 3-pin XLR-type, female
Audio Output: 2, 25-pin D-subminiature, female
AC Mains: standard 3-blade plug, meets IEC 320
specifications
AC Mains Requirement:
100, 120, or 220/240V, ±10%, factory configured,
50/60Hz, 100-120V 0.4A maximum, 220/240V
0.2A maximum
Dimensions (Overall):
19.00 inches wide (48.3cm)
1.72 inches high (4.4cm)
6.65 inches deep (16.9cm)
Mounting:
One space in a standard 19-inch-type rack
Weight:
7.0 pounds (3.2kg)
Specifications and information contained in this
User Guide subject to change without notice.