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Studio Technologies Model 233 Announcer's Console

Product Code: ST-M233

Key Features

The Model 230 Announcer's Console is designed to serve as the audio control "hub" for announcers, commentators, and production personnel. The tabletop unit is suited for numerous applications including on-air television and radio broadcasting. The Model 230 is compatible with essentially all broadcast and production audio system environments. Standard connectors are used to interface microphone, headphone, on-air, talkback, IFB, and party-line intercom signals.


Key Features
• Microphone preamp with selectable gain and 48 V phantom power
• Two line-level inputs
• Broadcast IFB input
• Three pushbutton switches offer programmable "click-free" audio path control
• Transformer-balanced main output
• Line-level talkback output
• Dual-channel intercom interface with "auto-terminate"
• Stereo headphone monitoring of selectable sources
• Two rotary headphone output level controls
$3,450.78 inc GST
(EA)
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Estimated Lead time 2-4 weeks
  • Features
  • Overview
  • Technical Specs
  • Documents

Studio Technologies Model 233 Announcers Console

Whether it's the mic preamplifier, audio switching, talkback signals, intercom interfacing, or headphone cue feed, superior audio quality is maintained throughout. A microprocessor provides the Model 230's logic power, allowing precise control of the unit's operation. With extensive flexibility built in, creating the desired operating configuration is a simple matter. While the operating features of the unit can be carefully tailored, the user is presented with an easy-to-use set of controls and indicators. A wide range of resources, great performance, and simplicity during use—these are the hallmarks of the Model 230.

A truly next-generation product, exhaustive research into the needs and desires of field production personnel was integral to the Model 230's creation. Providing a veritable "tool kit" of features, the unit supports a wide variety of applications that include on-air television and radio broadcasting, stadium announcement, and simultaneous interpretation.

Microphone Input

A high-performance microphone preamplifier circuit provides low-noise/low-distortion amplification over a 20 to 60 dB gain range. The gain is adjustable in 10 dB steps. The input is compatible with balanced dynamic and condenser microphones. The microphone power source is 48 V nominal and meets the worldwide P48 phantom power standard. The preamplifier's gain can also be set for 0 dB, allowing a line-level audio signal to be connected. This could provide useful in special applications such as when an external preamp or mic processor is being used.

An LED indicator serves as an aid for optimizing the preamplifier's gain setting. The output of the microphone preamplifier is used by the main output as well as being routed to the compressor circuit that supports the talkback functions.

Main Output

The Model 230 provides a main output that is designed to serve as the on-air, stadium announcement, or other primary audio feed. Nominally –2 dBu, it is designed as a fully professional interface with high output capability, low distortion, and low noise. The output circuitry features a high-performance output transformer expressly designed for use in professional audio applications.

Talkback Functions

The talkback functions are intended to provide personnel associated with production trucks, control rooms, live-performance, and sports venues with talent-originated cue signals. The Model 230 contains two pushbutton switches that control the talkback functions. Each button can be configured to allow talkback audio to be routed to one of three locations: intercom channel 1, intercom channel 2, or a line-level talkback output. The line-level talkback output is transformer-coupled with a +4 dBu nominal signal level. It contains resistors in series with the output connector, allowing line-level talkback outputs from multiple units to be directly "summed."

For non-on-air applications, the Model 230 can be placed in its "production" mode. This software-based mode allows the main output to be used as an additional talkback output. This feature makes the unit even more powerful when used in live-event applications, such as serving as a master console for an orchestra conductor or production director. With this flexibility, the exact needs of many specific applications can easily be met. And, of course, whatever configuration is selected the audio quality will be excellent.

Dynamic Range Control

To enhance the Model 230's talkback functions, a studio-quality compressor circuit is provided to control the dynamic range of the signal coming from the microphone preamplifier. Far from a simple "clipper," the circuit utilizes a sophisticated laser-trimmed voltage-controlled-amplifier (VCA) integrated circuit for quiet, low-distortion level control. The signal from the compressor is used by the talkback functions. This ensures that talkback audio signals remain clear and intelligible under all real-world conditions. In addition, dynamic range control is especially important when talkback signals are being routed to party-line intercom channels.

User Controls and Status Indicators

Three pushbutton switches, four LED indicators, and two rotary controls provide the user with a clear, easy-to-use interface. One pushbutton switch controls the status of the main output. This is the audio output intended for on-air, announcement, or other primary uses. Two LEDs display the on/off status of the main output. Two additional pushbutton switches control the status of the talkback functions. These functions create the audio cue signals used to communicate with producers, directors, "spotters," or other behind-the scenes.

Warranty

We offer a 3 year warranty on this product from its date of purchase. For more information regarding our support, repair and warranty, please download our Warranty Guide here.

Trade Terms
This item is a firm order product, meaning it cannot be cancelled or returned once the purchase order is processed, except in cases of defect. Please verify that part numbers and descriptions are accurate before placing your order. For any confirmation or additional information, please contact AV Sales at 1800 00 77 80.
General Audio:
Frequency Response: 10 Hz-20 kHz, 0.2 dB, mic in/main out
Distortion (THD+N): 0.008%, measured at 1 kHz, mic in/main out
S/N Ratio: 86 dB, referenced to 42 dBu mic in/ 2 dBu main out
Dynamic Range (A-weighted): 108 dB
Connectors:
Mic In, Line In 1 & 2, Intercom Interface: 3-pin female XLR
Main Out, Talkback Out 1 & 2: 3-pin male XLR
Headphone Out: -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: 2
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, nominal
CMRR: >80 dB, 20 Hz-20 kHz, 40 dB gain
Gain Range: 20 to 60 dB, nominal, adjustable in 10 dB steps
Compatibility: dynamic or phantom-powered mics
Phantom Power: 48 Vdc, nominal, meets IEC 61938 P48 standard
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: 12 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. Each unit shipped with 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 subject to change without notice.

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