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The Model 354A Talk Station is a unique product intended to support a variety of voice paging, background music, audio-file playback, broadcast talent cueing (IFB), and general-audio applications. The unit supplies four independent "talk" channels that can be individually configured to match the needs of an application. A monitor section allows one of the four Dante receiver (input) channels to be routed as desired to a connected amplifier or amplified speaker.
The Model 354A supports Dante audio-over-Ethernet digital media technology with AES67 compatibility for integration into contemporary applications. In addition, the unit is compatible with the Dante Domain Manager (DDM) software application.
Voice audio is supplied by way of a gooseneck microphone, purchased separately, which is attached to the connector/threaded bushing combination that is located on the front of the Model 354A. (Using the Studio Technologies' GME-3-12 Gooseneck Microphone is highly recommended.) Two audio sources or "messages," up to 40 seconds each in length, are stored in non-volatile memory within the Model 354A. These two audio sources, saved in the common 16-bit monoaural WAV format, can be easily updated by way of a standard USB flash drive. The audio files can contain whatever "pre-page" (preamble) audio signals that are desired to support an application. They could be the sound of natural bells or chimes, an "electronically created" audio sequence, or a voice message. By using WAV files, the desired sources can be created outside of the Model 354A and then easily loaded for use. Configuration choices determine how and when the preamble audio files will be played.
The Model 354A is extremely simple to deploy, is "pro" quality throughout, and provides an intuitive user experience. The Model 354A's audio quality is excellent, with low distortion, low noise, and ample headroom. Careful circuit design and rugged components ensure long, reliable operation. Only a Power-over-Ethernet (PoE) connection and attachment of a gooseneck microphone are required for operation. If desired, the analog monitor output can be connected to the input of an associated device. Two "custom" WAV audio files can be loaded by way of a USB flash drive.
Model 354A operating features are configured using the STcontroller software application. An extensive set of parameters allows the unit's functions to be tailored to meet the needs of a myriad of applications. STcontroller is a fast and simple means of confirming and revising the unit's operating parameters. The Model 354A is housed in a compact, rugged steel enclosure that's intended for table-top use. Its small size makes it ideal for applications in space-constrained locations.
Applications
For theater or live-event spaces the Model 354A can be a complete solution for routing up to four channels of background audio with voice paging and preamble audio capability. Pre-recorded "tones" or "chimes" can be configured to play prior to voice audio being presented to one or more of the outputs. The unit could be located in a box office or manager's office location.
A Model 354A function allows high-frequency "call" audio signals present in a Dante receiver (input) channel to be detected and displayed in the LED indicators associated with a pushbutton switch. This allows users to observe the on or off status of call signals that may be associated with intercom audio channels. In addition, this function can be used to display when a channel is active. This allows multiple Model 354A units to be deployed in a single application, with each unit displaying the talk status of all the others. A configuration option allows an associated pushbutton switch to be disabled whenever talk activity is taking place in other units. This feature will help prevent multiple users from simultaneously activating a talk function.
Broadcast applications can utilize the Model 354A to create a simple 4-channel talent cue (IFB) master station. "Program" audio sources can be routed to the unit's Dante receiver (input) channels and then interrupted with gooseneck microphone audio as desired.
Deployment of Dante applications could benefit from the unit's ability to store and playback WAV audio files. Test messages could be created in WAV format and then loaded into the Model 354A for continuous playback during system commissioning.
Security or management personnel could use the Model 354A as a combination voice paging console and monitor resource. Audio from the gooseneck microphone can be routed to up to four Dante transmitter (output) channels. The monitor section allows one of the four Dante receiver (input) sources to be monitored using a connected amplifier or amplified speaker.
For further information please refer to the attached Datasheet.
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.
Applications: Dante-based voice paging, intercom, talent cue (broadcast IFB), and general audio installations
Power Source: Power-over-Ethernet (PoE), class 1 (very low power, ≤3.84 watts), per IEEE 802.3af
General Audio:Internal Digital Audio Processing: 32-bit, fixedNominal Digital Input and Output Level: –20 dBFS
Network Audio Technology:Type: Dante audio-over-EthernetAES67-2018 Support: yesDante Domain Manager (DDM) Support: yesBit Depth: 16, 24, or 32Sample Rate: 48 kHzNumber of Transmitter (Output) Channels: 4Number of Receiver (Input) Channels: 4Dante Audio Flows: 4; 2 transmitter, 2 receiver
Network Interface:Type: 100BASE-TX, twisted-pair Ethernet with Power-over-Ethernet (PoE) supportedData Rate: 100 Mb/s (10 Mb/s and 1000 Mb/s GigE Ethernet not supported)
Microphone Input:Compatibility: Studio Technologies' GME-3-12 Gooseneck Microphone or equivalentMicrophone Power: 3.3 volts DC via 2.49 k resistorImpedance: 2.0 k ohms, nominalGain: 12, 18, 24, 30, 36 dB, selectableFrequency Response: –3 dB at 40 Hz, –1 dB at 16 kHzDistortion (THD+N): 0.022%, measured at –20 dBFS, 22 Hz to 22 kHz bandwidth, 12 dB of gainNoise Floor: –95 dBFS, A-weighted, 12 dB of gainDynamic Range: >76 dB, A-weighted, measured at 36 dB of gain
Compressor:Application: applies only to gooseneck microphone audioThreshold: 2.7 dB above nominal Dante output level (–17.3 dBFS), ±0.3 dBSlope: 2:1Status LED: compressor active
Preamble Audio:Number of Channels: 2, field updatable using USB flash driveSource Type: 16-bit monophonic, 48 kHz sample rate, WAV (.wav) files, stored in non-volatile memoryLevel: –20 dBFS nominal, adjustable ±12 dB in 3-dB stepsDuration: up to 40 seconds per WAV fileDistortion: <0.0001%Frequency Response: 20 Hz to 20 kHz, +0/–0.7 dB
Talent Cue (Broadcast IFB) Capability:Number of Channels: up to 4, configurableAudio Sources: Dante receiver (input) channels 1-4Frequency Response: 20 Hz to 20 kHz, +0/–0.7 dBProgram Audio Attenuation (Dim): 0, 5, 10, 15, 20 dB, Full Mute, configurable
Dante Monitor Output:Nominal Level: –24 dBFS
Analog Monitor Output:Type: electronically balanced, capacitor coupled, intended to drive balanced or unbalanced loads of 2 k ohms or greaterAudio Source: Dante receiver (input) channels 1-4, preamble audio, and microphone audio, configurable and selectableSource Impedance: 200 ohmsNominal Level: –10 or 0 dBu, reference –20 dBFS, configurableMaximum Level: +20 dBu, with 0 dBFS input, measured at 1 kHzDynamic Range: >106 dB, A-weightedDistortion (THD+N): 0.0011% (–99 dB), measured at –1 dBFS input, 22 kHz bandwidthFrequency Response: +0/–1.5 dB, 20 Hz to 20 kHzLevel Reduction (Dim) Capability: 0, 5, 10, 15, 20 dB, or full mute, configurable
Dante Talk Outputs: 4Type: Dante digitalNominal Level: –20 dBFS
Channel Status Signals:Action: independently configurable per channelSend Tone Frequencies: 16, 18, and 20 kHz, sine waveSend Tone Frequency Accuracy: <10 ppmSend Tone Level: –20 dBFS, nominalSend Tone Distortion: <0.0001%Receiver Tone Detect Level Threshold: –23 dBFS at 16 kHz; –28 dBFS at 18 kHz; –30 dBFS at 20 kHzReceiver Tone Minimum On Time: 80 millisecondsProgram Input-to-Monitor Output Low-Pass Filter: –6 dB at 10 kHz; –28 dB at 16 kHz; –55 dB at 20 kHzTone Detect Tone-to-Monitor Output Rejection Filter: –31 dB at 18 kHz; –46 dB at 20 kHz; –70 dB at 22 kHz
Connectors:Gooseneck Microphone: 3-conductor ¼-inch jack with 7/16-20 UNF threaded bushing; 4-40 hex head socket set screw allows microphone to be secured into bushingAnalog Monitor Output: 3-pin male XLREthernet: Neutrik NE8FBH etherCON RJ45 jack (compatible with etherCON CAT5 plug)USB: type A receptacle (used only for updating main firmware and WAV audio files)
Configuration: Studio Technologies' STcontroller personal computer application
Software Updating: USB flash drive used for updating main firmware and WAV audio files; Dante Controller's Dante Updater application used for updating Dante interface firmware
Environmental:Operating Temperature: 0 to 50 degrees CStorage Temperature: –40 to 70 degrees CHumidity: 0 to 95%, non-condensingAltitude: not characterized
Dimensions:3.6 inches wide (9.1 cm)2.7 inches high (6.9 cm)4.7 inches deep (11.9 cm)
Deployment: intended for tabletop applications
Weight: 0.50 kg without gooseneck microphone; 0.64 kg with GME-3-12 Gooseneck Microphone