Filter
Top Products
Issue 1, September 2007 Model 233 User Guide
Page 44 Studio Technologies, Inc.
please refer to the Additional Connectors
section in the Technical Notes area of this
user guide.
Specifications
General Audio:
Frequency Response: 20 Hz-20 kHz, ±0.1 dB,
mic in/main out
Distortion (THD+N): 0.008%, measured at 1 kHz,
mic in/main out
S/N Ratio: 80 dB, referenced to –46 dBu mic in/
–2 dBu main out
Connectors:
Mic In, Line In 1 & 2, Intercom Interface: 3-pin
female XLR-type
Main Out, Talkback Out 1 & 2: 3-pin male
XLR-type
Headphone Out: ¼-inch 3-conductor phone jack
24 Vdc Power In: 2.1 x 5.5 mm coaxial power jack
with locking bushing, compatible with Switchcraft
S760K plug
Spare Connector Locations: 3
Allows up to three Neutrik NC*D-L-1 connectors
to be installed (*=3F, 3M, 5F, 5M, 6F, 6FS, etc.)
Microphone Input/Preamplifier:
Type: electronically balanced
Input Impedance: 2 k ohms
Gain Range: 20 to 60 dB, adjustable in 10 dB
steps
Compatibility: dynamic or phantom-powered mics
Phantom Power: 48 Vdc, nominal, meets
IEC 61938
Compressor:
Threshold: 2 dB above nominal level
Attack/Release Time: 2 mSec/100 mSec
Slope: 5:1
Status LED: compressor active
Line Inputs: 2
Type: balanced, transformer-coupled
Impedance: 10 k ohms
Nominal Level: –12 dBV to +6 dBu, adjustable
Intercom Interface:
Type: 2-channel, unbalanced (pin 1 common; pin 2
DC with channel 1 audio; pin 3 channel 2 audio)
Compatibility: single- and dual-channel intercom
systems such as from RTS™ and Clear-Com®
Impedance: 10 k ohms
Nominal Receive Level: –10 dBu
Nominal Talkback Level: –10 dBu
Sidetone (Null): 0 to –18 dB, adjustable
Main Output:
Type: balanced, transformer-coupled
Nominal Level: –2 dBu
Maximum Level: +20 dBu into 2 k ohms
Impedance: 100 ohms
Line-Level Talkback Outputs: 2
Type: transformer-coupled with series capacitors
and isolation resistors
Impedance: 600 ohms
Nominal Level: +4 dBu
Maximum Level: +11 dBu (compressor restricts
maximum)
Headphone Output: 1, stereo
Compatibility: intended for connection to mono
or stereo headphones or headsets with nominal
impedance of 100 ohms or greater
Type: voltage driver
Maximum Output Voltage: 8 Vpp, 150 ohm load
Auxiliary Relay:
Function: software configurable
Contacts: 2, form C (Common, Normally Closed,
Normally Open)
Rating: 1 A, 30 W (resistive)
Access: requires user-implemented connector
scheme
Tally Output: 3.5 Vdc, 12 mA maximum, nominal
Power Sources:
Intercom Interface: 24-32 Vdc, 125 mA
External: 24 Vdc, 90 mA @ 24 Vdc; acceptable
range 20-30 Vdc. Units shipped to North America
and Japan include a 120 V input/24 Vdc output
power supply. Units shipped to all other locations
include a universal input/24 Vdc output power
supply.
Dimensions (Overall):
8.1 inches wide (20.6 cm)
3.3 inches high (8.4 cm)
8.5 inches deep (22.4 cm)
Weight: 4.5 pounds (2.1 kg)
Specifications and information contained in this
User Guide subject to change without notice.