Model 230
Studio Technologies
Model 230
Studio Technologies Model 230 Announcer's Console
This device simplifies audio setup at the talent positions where talent talkback to the control room is required.
It contains a complete 2-channel (interrupted and non-interrupted) RTS-equivalent IFB station. The talkback circuitry in the box produces a line level (nom -10db) output transformer isolated to eliminate ground loops.
The single push-button on the top of the box removes the microphone from the air circuit and routes it to the talkback circuit.
The AIR Microphone circuit is completely passive. If the power to an IFB station is lost, only the IFB and talkback functions will be lost; the air microphone circuit will still function normally.
The talkback output level is fixed at about -10db. This level, when fed into the line level input of a speaker amplifier, should allow the amplifier gain pot to run about midrange. The level is low enough that no crosstalk problems should be experienced in bringing the talkback signal back down the mic level audio mult.
It contains a complete 2-channel (interrupted and non-interrupted) RTS-equivalent IFB station. The talkback circuitry in the box produces a line level (nom -10db) output transformer isolated to eliminate ground loops.
The single push-button on the top of the box removes the microphone from the air circuit and routes it to the talkback circuit.
The AIR Microphone circuit is completely passive. If the power to an IFB station is lost, only the IFB and talkback functions will be lost; the air microphone circuit will still function normally.
The talkback output level is fixed at about -10db. This level, when fed into the line level input of a speaker amplifier, should allow the amplifier gain pot to run about midrange. The level is low enough that no crosstalk problems should be experienced in bringing the talkback signal back down the mic level audio mult.
Product Weight: 4.5 lbs
Dimensions: 8.1"W x 3.3"H x 8.5"D
Technical Tools
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Manufacturer Specs
General Audio
Frequency Response: 20 Hz to 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, IFB In, Intercom Interface: 3-pin female XLR-type
Main Out, Talkback Out: 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
Spare Connectors: 3 Neutrik NC*D-L-1 (*=3F, 3M, 5F, 5M, 6F, 6FS, etc.)
Microphone Input/Preamplifier
Type: electronically balanced
Input Impedance: 2 kΩ
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
Line Inputs
Number: 2
Type: balanced, transformer-coupled
Impedance: 10 kΩ
Nominal Level: –12 dBu to +6 dBu, adjustable
IFB Input
Type: 2-channel, unbalanced (pin 1 common; pin 2 DC with channel 1 audio; pin 3 channel 2 audio)
Impedance: 10 kΩ
Nominal Level: –10 dBu
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 kΩ
Nominal Level: –10 dBu
Main Output
Type: balanced, transformer-coupled
Nominal Level: –2 dBu
Maximum Level: +20 dBu into 2 kΩ
Impedance: 100Ω
Line-Level Talkback Output
Type: transformer-coupled with series capacitors and isolation resistors
Impedance: 600Ω
Nominal Level: +4 dBu
Maximum Level: +11 dBu (compressor restricts maximum)
Headphone
Output: 1, binaural (stereo)
Compatibility: mono or stereo headphones or headsets with nominal impedance of 100Ω or greater
Type: voltage driver
Maximum Output Voltage: 8 Vpp, 150Ω load
Auxiliary Relay
Contacts: 2, form C (Common, Normally Closed, Normally Open)
Rating: 1A, 30W (resistive)
Power
Acceptable range: 20 to 30 VDC
IFB Input: 24-32 VDC, 125 mA
Intercom Interface: 24-32 VDC, 125 mA
External: 24 Vdc, 90 mA
All units include a universal input/24 Vdc output power supply
Physical
Dimensions (Overall): 8.1"W x 3.3"H x 8.5"D (20.6 x 8.4 x 22.4 cm)
Weight: 4.5 pounds (2.1 kg)
Frequency Response: 20 Hz to 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, IFB In, Intercom Interface: 3-pin female XLR-type
Main Out, Talkback Out: 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
Spare Connectors: 3 Neutrik NC*D-L-1 (*=3F, 3M, 5F, 5M, 6F, 6FS, etc.)
Microphone Input/Preamplifier
Type: electronically balanced
Input Impedance: 2 kΩ
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
Line Inputs
Number: 2
Type: balanced, transformer-coupled
Impedance: 10 kΩ
Nominal Level: –12 dBu to +6 dBu, adjustable
IFB Input
Type: 2-channel, unbalanced (pin 1 common; pin 2 DC with channel 1 audio; pin 3 channel 2 audio)
Impedance: 10 kΩ
Nominal Level: –10 dBu
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 kΩ
Nominal Level: –10 dBu
Main Output
Type: balanced, transformer-coupled
Nominal Level: –2 dBu
Maximum Level: +20 dBu into 2 kΩ
Impedance: 100Ω
Line-Level Talkback Output
Type: transformer-coupled with series capacitors and isolation resistors
Impedance: 600Ω
Nominal Level: +4 dBu
Maximum Level: +11 dBu (compressor restricts maximum)
Headphone
Output: 1, binaural (stereo)
Compatibility: mono or stereo headphones or headsets with nominal impedance of 100Ω or greater
Type: voltage driver
Maximum Output Voltage: 8 Vpp, 150Ω load
Auxiliary Relay
Contacts: 2, form C (Common, Normally Closed, Normally Open)
Rating: 1A, 30W (resistive)
Power
Acceptable range: 20 to 30 VDC
IFB Input: 24-32 VDC, 125 mA
Intercom Interface: 24-32 VDC, 125 mA
External: 24 Vdc, 90 mA
All units include a universal input/24 Vdc output power supply
Physical
Dimensions (Overall): 8.1"W x 3.3"H x 8.5"D (20.6 x 8.4 x 22.4 cm)
Weight: 4.5 pounds (2.1 kg)