Studio Technologies 68A 2001 - Manual (Page 38)

Issue 1, March 2001 Model 68A/69A User Guide
Page 38 Studio Technologies, Inc.
for Surround
Specifications
Model 68A Central Controller
General Audio:
Frequency Response: 20Hz-20kHz ±0.1dB
(down 0.5dB @ 60kHz), monitor outputs
Distortion (THD+N): 0.03%, measured at 1kHz,
+4dBu, monitor outputs
S/N Ratio: 92dB, ref +4dBu out
Crosstalk: 78dB, ref +4dBu in
Audio Line Inputs: 16, organized as two
6-channel inputs and two 2-channel inputs
Type: electronically balanced, direct coupled
Impedance: 24k ohms
Nominal 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)
Monitor Outputs: 6-channel surround, 2-channel
stereo
Type: electronically balanced, intended to
drive balanced or unbalanced loads of 600 ohms
or greater
Nominal Level: unity gain, audio inputs to monitor
outputs
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—Balanced: 50 ohms
Level Control Method: laser-trimmed voltage-
controlled-amplifier integrated circuits manufac-
tured by THAT Corporation
Attenuation Range: 72dB, nominal, using rotary
level control
Bandpass Filter:
Type: created by cascading (connecting in series)
a high-pass and low-pass filter; each filter 2
nd -order
(12dB-per-octave) Sallen-Key
Response: –3dB@100Hz and 5kHz, nominal
Connectors:
Audio: 3, 25-pin D-subminiature female
Control: 2, 9-pin D-subminiature female
AC Mains: 3-blade IEC-type
Remote Control Inputs: 4, HCMOS-type logic,
“pulled up” to +5Vdc using 10k ohm resistors,
activates on closure to system common
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)
8.75 inches deep (22.2cm)
Mounting:
One space in a standard 19-inch-type rack
Weight: 8.2 pounds (3.7kg)
Model 69A Control Console
Application: operates in conjunction with Model
68A Central Controller
Power: provided by Model 68A Central Controller
Output Data: generates MIDI system-exclusive
messages
Connector: 1, 9-pin D-subminiature female
Dimensions (Overall):
7.2 inches wide (18.3cm)
2.2 inches high (5.6cm)
5.4 inches deep (13.7cm)
Weight: 1.9 pounds (0.9kg)
Specifications subject to change without notice.