Utah-100/3 MADI Terminal

Multiple Audio Digital Interface or AES-10

Multiple Audio Digital Interface (MADI or AES-10) is increasingly being used as a simple and reliable means of audio signal transport for high-density installations in studio and mobile production applications.

The UTAH-100/3 MADI Terminal offers a compact, flexible, and cost-effective means of converting audio signals, both analog and digital, to and from the MADI signal format. Each 2-RU frame can house one or two MADI channels, and each channel can carry up to 64 individual audio signals (32 AES or stereo pairs) with full 24-bit, 48KHz resolution.

The UTAH-100/3 MADI Terminal frame includes internal power supplies and optional redundancy, with a controller card that accepts a DARS reference signal for synchronizing the audio elements. The frame includes two bays for the installation of MADI card sets. Each card set consists of four cards that provide connection for one MADI stream (in coax or optical format) and 32 AES signals (balanced or unbalanced). Analog card sets are also available, providing A-to-D or D-to-A conversion for 64 mono signals or 32 stereo pairs.



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Technical Specs


I/O impedance: 75 ohms

Capacity: Up to 32 pairs of 24-bit, 48 KHz audio

Cable range: Coax – 100 meters Fiber – 2,000 meters

Digital Audio I/O

Balanced or unbalanced

Balanced impedance: 110 ohms

Unbalanced impedance: 75 ohms

Input level:                          Minimum: 200 mV p-p

.                                          Maximum: 7 V p-p

Maximum common mode level: ±7 V (DC-20 kHz)

Analog Audio I/O

Converter resolution:                     24 bits (20 or 16 selectable)

Total harmonic distortion:            0.1% (30 Hz to 20 KHz, +24dBm)

Hum and noise:                                 -85dBm (15KHz weighting)

Crosstalk:                                           -85 dB (20 KHz, +24dBu)

Gain uniformity:                               +/- 0.15dB

Frequency response:                        +/- .25dB (20 Hz to 20 Khz)

Input impedance:                            >100K ohms

Output source impedance:            <50 ohms

Common mode rejection:               70dB (50/60 Hz)


All supplies are UL-listed and IEC950- approved

100-240 VAC, 50-60 Hz

Power consumption: 100 watts max


Width: 19” rack-mount (48.26cm)

Depth: 14” (35.6cm)

Height: 2-RU, 3.50” (8.9cm)

Weight: 12 lb (5.4kg


Operating temperature: 32-113 degrees F, (0-45 degrees C)

Relative humidity range: 0-90%, non-condensing