CU001 Ravenna

3 Commentator Unit With Analogue I/O & Ravenna

  • Positions for 3 commentators 3 x mic/line inputs with 48V phantom power
  • Individual outputs plus a mixed output
  • 5 external inputs for monitoring plus sidetone
  • Output compressor / limiter
  • 3 common talkback outputs with Config+ push buttons
  • 7 segment LED PPM
  • Analogue audio and Ravenna/AES67 I/O

Description

The CU001 Ravenna is a highly versatile commentary unit. It was designed after close consultation with end users and the result is a stand alone unit which offers a wide range of facilities, and it is equally at home on the terraces, as it is in a studio.

The CU001 Ravenna version now adds the following as standard features:

  • analogue and Ravenna/AES67 I/O
  • 48v phantom power
  • upgraded input gain pot
  • input gain range increased from -20 to +10 dB
  • GPOs on Mic and talkback buttons to allow integration with main intercom or talkback system

Inputs
3 front panel inputs are mic/line switchable with selectable 48v phantom power. The front panel also has a small gain adjustment pot. Mic on/off switches can be selected in on/off mode or in cough mode. There is a global low frequency cut that can be selected on or off, and a preset compressor/limiter per input.

Oututs/Talkback
Each input has a direct discrete output on the rear panel along with a mixed output of all of the inputs, all on XLR. The mixed output is also available on an un-balanced 3.5mm jack socket as a local record. The direct output levels can be set in 3 positions:

  1. 0dB + limiter: This is the normal operation and it limits peak levels.
  2. 0dB: This feeds the output with an un-compressed nominal level of 0dB, for when the peak signal level will be controlled by outboard equipment.
  3. -20dB: This feeds the output with a nominal level of -20dB providing extra headroom.

There are 3 common talkback circuits with individual buttons on the two main commentators’ sections (Position B's input cannot be switched to a talkback output). The operation of the talkback buttons features Config+ for configuring in different modes.

Monitoring
There are 2 main commentator monitoring sections, each with two separate 6.35mm A or B gauge jack sockets for headphones. In this way, the centre position B commentator can choose to share the monitoring of commentator A or C. There are 5 common external sources available for monitoring, plus an additional control which is the sum of the other 2 commentators/inputs. Each of the 6 pots has variable level control and left/both/right switching allowing commentator A and C to achieve their desired mix and balance levels. The sidetone control is located on the rear panel for commentator A and C to adjust the level of their own voice. There is a 7 segment LED PPM meter.

The Ravenna inputs are mixed with the analogue inputs so only one of the analogue or Ravenna inputs should be used at a time.

Power
There is an internal switch mode power supply 100-250v AC, with external power via a 4 pin XLR 9-18v DC.

Networking
There are 2 x RJ45 network connections for a primary and secondary network.

Flight Case
By popular demand a hard wearing strong polypropylene flight case is now available for all of the GS-CU001 range. It features long life hinges, easy to use catches and being made out of hardwearing polypropylene plastic, it will last for years. Internally the case is lined with cut out medium density foam. The multipurpose cut outs can be adapted to accept any of the different size GS-CU001 units. A second small cut out is included suitable for two HMD25 headsets & mains cable.

Specification

Audio
Mic Input Gain Range -20dB to +10dB
Dynamic Mic Line Up 60dB
Mic + Phantom Power Line Up 35dB
Line Input Line Up 0dBu
Mic Input Impedance 1k1
Input Impedance 100k
Phantom Power +48V @ 6mA
Equivalent Input Noise -126dBu (22-22kHz RMS terminated 300 Ohms)
Maximum Input Level
  • Dynamic Mic: -10dB
  • Dynamic Mic: +10dB (with O/P set to -20dB)
  • Mic + 48V PH: +15dB
  • Mic + 48V PH: +35dB (with O/P set to -20dB)
Band Pass Filter Selectable On/Off, when on -3dB points are 80Hz and 12.5kHz (12dB per Octave)
Frequency Response -1dB 40Hz to 16kHz (Filter off)
Maximum Output Level
  • +20dBu (limiter off)
  • +11dBu (limiter off)
Output Impedance 50 Ohms
THD + Noise < 0.027% @ 10kHz ref +8dBu
Headphone Source Input Impedance > 15k
Maximum Headphone Input +26dBu
Maximum Headphone Output +19dBu into 600 Ohms
Headphone Volume Pot Range +10dB to Off (+10dB to -30dB factory fit option)
Headphone Impedance 100 - 1000 Ohms
Headphone Frequency Response <= -0.5 dB 20Hz to 20kHz
Headphone Distortion < 0.016% @ 10kHz ref +8dBu
Power
External Mains PSU
  • Filtered IEC, 100 to 240VAC
  • 47 - 63Hz
AC Consumption < 25 Watts
DC inputs 4 Pin XLR Plug +/-12V
Power On LED Bright Blue
Physical
Size 214 x 158 x 66mm (WxDxH)
Weight 1.16kg
Mechanics All aluminium construction, anodized and laser etched, powder coated sides
Shipping Carton Rugged export quality cardboard carton 610 x 420 x 170mm (WxDxH)
Shipping Weight 2.6kg
Network
Network Standard Dante/AES67
Ports 2 x RJ45. Primary & Secondary
Channels 8 bi-directional

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