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Studio Technologies Model 5205 2-Channel Mic/Line to Dante Interface

  • Dale #:

    STUD-M5205
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Description

The Model 5205 Mic/Line to Dante Interface is a general-purpose audio device that supports applications utilizing the Dante audio-over-Ethernet media networking technology. Two analog microphone or line-level audio signals can be connected to the Model 5205. They are amplified as required and the... Read More

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Description

The Model 5205 Mic/Line to Dante Interface is a general-purpose audio device that supports applications utilizing the Dante audio-over-Ethernet media networking technology. Two analog microphone or line-level audio signals can be connected to the Model 5205. They are amplified as required and then converted to digital audio channels on an associated Dante connection. With the inherent interoperability of Dante, the Model 5205 can be used with other Studio Technologies Dante-enabled products or a multitude of devices from many other manufacturers.

Microphone or line-level balanced analog audio signals are connected using two 3-pin XLR connectors. Using front-panel pushbutton switches the gain of the associated microphone preamplifier circuitry can be selected for 0, 20, 30, 40, 50, or 60 dB. P48 phantom power is provided to support condenser microphones. Separate pushbutton switches control the on/off status of phantom power. LEDs display the status of the gain and phantom power functions. Multi-step LED meters provide confirmation of the level of the two Dante transmitter (output) audio channels.

The audio quality of the Model 5205's two audio channels is excellent, with low distortion, low noise, and high headroom. Careful circuit design and rugged components ensure long, reliable operation. A wide range of applications can be supported, including TV, radio, and streaming broadcast events, corporate and government AV installations, and post-production facilities.

The Model 5205 requires an Ethernet connection to supply both the data interface as well as Power-over-Ethernet (PoE) power. This requires an Ethernet connection from a PoE-enabled Ethernet switch. Alternately, the Model 5205 can be powered by an external midspan PoE power injector.

Features:

  • Dante audio-over-Ethernet technology
  • Two analog mic/line inputs to Dante digital audio outputs
  • Selectable preamplifier gain and P48 phantom power
  • Audio channel level metering
  • Excellent audio quality
  • Power-over-Ethernet (PoE) powered
  • Standard connectors; compact, lightweight design


The Model 5205 is perfect for use in conjunction with a variety of fixed and portable audio applications where one or two analog audio signals need to join a Dante "network." The unit's high-performance audio circuitry allows virtually any source to be handled correctly. Essentially all condenser, dynamic, or ribbon microphones are compatible, as are most balanced and unbalanced analog line-level sources. The simple user controls, along with an extensive set of status indicators, help to ensure optimum performance is maintained. With the unit's compact size and PoE powering, it's simple to deploy multiple units to integrate a distributed set of sources into a Dante application. For permanent applications there's no reason why a Model 5205 can't reside within an equipment rack or be mounted, using optional brackets, underneath a table or on-air studio set. In a conference room setting the unit can be permanently connected to a PoE-enabled Ethernet port, ready to accept a signal source from various user-provided devices.

Mic/Line Inputs
Two microphone or line-level analog audio signals can be connected to the Model 5205's 3-pin female XLR connectors. Using pushbutton switches, the input gain of each channel can be independently adjusted from among six settings: 0 (line), 20, 30, 40, 50, or 60 dB. To support condenser microphones P48 phantom power can be independently selected as required for each channel. LEDs are provided to display the configuration of the gain and P48 phantom power functions. Six pushbutton switches, located on the Model 5205's front panel, allow rapid selection of the input gain and P48 power on/off status. A simple button-press sequence allows the six pushbutton switches to be temporarily "locked out" to prevent accidental adjustment. This can be very useful in field applications, helping to prevent undesired configuration changes from being made.

Audio Quality
The Model 5205's audio performance is very good. The low-noise, wide dynamic-range microphone preamplifier circuitry ensures that input audio quality is preserved. The outputs of the microphone preamps are routed to high-performance analog-to-digital conversion (ADC) sections that support sampling rate of 44.1, 48, 88.2, and 96 kHz with a bit depth of 24. A precision voltage-reference integrated circuit supports the ADC circuitry in performing accurate signal conversion. The audio signals, now in the digital domain, are connected to the Dante interface section where they are packetized and prepared for transport over Ethernet. The P48 power source is extremely low noise, providing microphone power while causing little signal degradation. This is important for demanding applications.

The mic/line inputs were carefully designed for use in permanent, as well as portable and field, applications. Extensive filtering minimizes the chance that radio frequency (RF) energy will interfere with the audio input signals. Other components were included to specifically address ESD ("static") situations, helping to ensure long-term reliable operation.

Metering
Two 8-step LED meters provide a real-time level indication of the two Dante transmitter (output) channels. Scaled in dBFS (decibels referenced to full scale digital) the meters offer a direct view of the audio signal levels as they are transported via Dante in the digital domain. This is important as optimal audio performance requires transporting signals at their proper levels — without an accurate indication this can be difficult to achieve.

Ethernet Data and PoE
The Model 5205 connects to an Ethernet data network using a standard 100 Mb/s twisted-pair Ethernet interface. The physical interconnection is made by way of a Neutrik® etherCON RJ45 connector. While compatible with standard RJ45 plugs, etherCON allows a ruggedized and locking interconnection for harsh or high-reliability environments. An LED displays the status of the network connection.

The Model 5205's operating power is provided by way of the Ethernet interface using the 802.3af Power-over-Ethernet (PoE) standard. This allows fast and efficient interconnection with the associated data network. To support PoE power management, the Model 5205's PoE interface reports to the power sourcing equipment (PSE) that it's a class 2 (low power) device. An LED is provided to indicate when power is being supplied to the Model 5205. If a PoE-enabled Ethernet port can't be provided by the associated Ethernet switch a low-cost PoE midspan power injector can be utilized.

Dante Audio-over-Ethernet
Audio data is sent from the Model 5205 using the Dante audio-over-Ethernet media networking technology. As a Dante-compliant device, the Model 5205's two transmit audio channels can be assigned to other devices using the Dante Controller software application. The bit depth is 24 and sample rates of 44.1, 48, 88.2, and 96 kHz are supported. Two bi-color LEDs provide an indication of the Dante connection status.

Future Capabilities and Firmware Updating
The Model 5205 was designed so that its capabilities and performance can be enhanced in the future. A USB connector, located on the unit's back panel, allows the application firmware (embedded software) to be updated using a USB flash drive.

To implement the Dante interface the Model 5205 uses Audinate's Ultimo™ integrated circuit. The firmware in this integrated circuit can be updated via the Ethernet connection, helping to ensure that its capabilities remain up to date.

Remote Control Capability
The Model 5205's circuitry was designed such that remote control of key functions will be possible. Preamplifier gain, phantom power on/off status, button lockout, and module identification functions will be accessible remotely in future software offerings. An expanded number of steps and an increase in the maximum gain of the preamplifier will also be available when remote control is active.

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Product Specs

Network Audio Technology Type: Dante audio-over-Ethernet
Bit Depth: 24
Sample Rates: 44.1, 48, 88.2, and 96 kHz
Number of Dante Transmitter (Output) Channels: 2
Dante Audio Flows: 2 transmitter
Analog to Digital Equivalence: a +4 dBu input with 0 dB gain selected results in a Dante digital output level of –20 dBFS
Network Interface Type: twisted-pair Ethernet with Power-over-Ethernet (PoE)
Data Rate: 100 Mb/s (10 Mb/s Ethernet not supported)
Power Power-over-Ethernet (PoE) per IEEE 802.3af class 2 (low power, ≤6.49 watts)
General Audio Parameters Frequency Response (48 kHz Sample Rate): +0.0/–0.5 dB, 20 Hz to 22 kHz
Frequency Response (96 kHz Sample Rate): +0.0/–0.5 dB, 20 Hz to 40 kHz
Distortion (THD+N): 0.001% (–100 dB) at –1 dBFS, 40 dB gain, 22 kHz bandwidth
Dynamic Range: greater than 114 dB, 0 dB gain, A-weighted
EIN: –123 dBu, 22 kHz bandwidth, 60 dB gain, 150 ohm source resistance
IMD (SMPTE): less than 0.002%, 60 Hz/7 kHz, 4:1, –20 dBFS
Mic/Line Inputs 2
Type: electronically balanced
Input Impedance: 3.7 k ohms
CMRR: greater than 75 dB, 20 Hz to 22 kHz, 40 dB gain
Input Gain, Nominal (Button Selected): 0 (line), 20, 30, 40, 50, and 60 dB
Input Gain, Actual (Button Selected): 0 (line), 19, 31, 40, 49, and 61 dB
Input Gain (Remote Control Selected): 0 dB (line), 10 dB, 19-70 dB in 3-dB steps
Compatibility: dynamic, ribbon, or phantom-powered mics
Phantom Power: P48 per IEC 61938 standard, +45 volts DC nominal, on/off selectable
Meters 2
Function: displays level of Dante transmitter (output) signals
Type: 8-segment LED, modified VU ballistics
Connectors Mic/Line Inputs: 3-pin female XLR
Ethernet: Neutrik etherCON RJ45
USB: type A receptacle
Dimensions (Overall) 4.2 inches wide (10.7 cm)
1.7 inches high (4.3 cm)
5.1 inches deep (13.0 cm)
Mounting Option bracket kit
Weight 0.8 pounds (0.35 kg)

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