Specifications – Studio Technologies 55 1996 User Manual
Page 33

Model 55/56 User Guide
Issue 3, December 1996
Studio Technologies, Inc.
Page 33
Specifications
Model 55 Central Controller
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 Inputs and Outputs: dual, ¼-inch,
3-conductor phone jacks, gold-plated contacts
(Manufactured by Neutrik). Mates with all plugs
specified by EIA RS-453.
Talent Amplifier Output: 3-pin XLR-type, male
(Neutrik)
Control Console/MIDI In: 5-pin DIN-type, female
AC Mains: standard 3-blade plug, meets IEC 320
specifications
Audio Inputs
Qty: 4, stereo (separate left and right input
connectors)
Type: electronically balanced, direct coupled,
compatible with balanced or unbalanced signals
Impedance: 24k ohms
Nominal Input Level: –10dBV or +4dBu, each input
individually software configurable
Common Mode Rejection: 100dB @ DC and 60Hz,
70dB @ 20kHz, 62dB @ 40kHz (typical)
Control Room Output
Qty: 1, stereo (separate left and right output
connectors)
Type: electronically balanced, intended to drive
loads of 600 ohms or greater, balanced or
unbalanced
Output Level (input source at nominal level):
–69dBu at 0% rotation (fully counterclockwise),
–58dBu at 25% rotation, –37dBu at 50% rotation,
–17dBu at 75% rotation, +4dBu at 100% rotation
(fully clockwise)
Maximum Output Level: +27dBu into 10k ohms,
+26dBu into 600 ohms
Frequency Response: 10Hz-40kHz +0/–0.5dB
(down 1dB @ 80kHz)
Distortion (THD+N): 0.02% (measured at +4dBu
input, +4dBu output)
S/N Ratio: 87dB (20Hz-20kHz)
Dub Output
Qty: 1, stereo (separate left and right output
connectors)
Type: electronically balanced, intended to drive
loads of 600 ohms or greater, balanced or
unbalanced
Nominal Output Level: –10dBV or +4dBu, software
configurable
Maximum Output Level: +27dBu into 10k ohms,
+26dBu into 600 ohms
Frequency Response: 10Hz-40kHz +0/–0.5dB
(down 1dB @ 70kHz)
Distortion (THD+N): 0.004% (measured at +4dBu
input, +4dBu output)
S/N Ratio: 92dB (20Hz-20kHz)
Meter Output
Qty: 1, stereo (separate left and right output
connectors)
Type: unbalanced, intended to drive loads of 2k
ohms or greater
Nominal Output Level: +4dBu
Maximum Output Level: +21dBu into 10k ohms
Frequency Response: 10Hz-40kHz +0/–0.5dB
(down 1dB @ 70kHz)
Distortion (THD+N): 0.004% (measured at +4dBu
input, +4dBu output)
S/N Ratio: 92dB (20Hz-20kHz)