Product Details
CM-CU21

Commentator Unit 2 Commentators & 1 Guest

The CM-CU21 is a high quality, portable Commentator Unit with a sturdy construction and flexibility of features that make it suitable for use in a wide variety of environments.It provides two fully featured commentator positions and a third guest position that can alternatively be used as a line-level input.

Product Details
The CM-CU21 is a high quality, portable Commentator Unit with a sturdy construction and flexibility of features that make it suitable for use in a wide variety of environments.
It provides two fully featured commentator positions and a third guest position that can alternatively be used as a line-level input.

Each position has an individual output, with two additional outputs providing a mix of all active commentary channels. A limit indicator on the main panel shows when the adjustable limiter on the mix outputs is active, and a bright 21 segment LED PPM meter, which can be disabled, shows the main output level.
Two talkback output channels, with a built in limiter, are available to each of the two main commentators and they can be linked to provide simultaneous operation.

A flexible range of options allow the Commentator Unit to be customised to better suit the operational and user’s personal requirements. These include options for momentary or latching operation of the talkback buttons, permanently enabling or disabling any of the commentator inputs, default headphone signal routing and main panel indicator illumination levels.

The CM-CU21 Commentator Unit can be powered from a universal mains input between 85-264V AC at 47-63Hz, or from a 12-24V DC input.

• 2 Commentator positions plus a guest position, each with individual outputs; plus 2 mix outputs.
• Talkback outputs selectable by the two main commentators, with built in limiter.
• 4 Return audio circuits that are routed to headphones along with all the commentator inputs. Any source can be individually level controlled and sent to left, right or both ears.
• A wide input gain range and switchable phantom power on each commentary position allows support of a variety of microphone types including low output ribbon, headsets and high output phantom powered microphones.
• Individually switched 48V phantom power on all microphone inputs.
• User preset adjustable limiter on main mix outputs with limit activity indication.
• Built in line-up tone for initial cabling checks.
• 21 Segment LED PPM meter showing main output level.
• Transformer balanced inputs and outputs.
• Fitted formica ‘Sharpie’ designation strips.
• Robust mechanical design with protection for potentiometer knobs.
• Universal AC mains, or 12-24 volt DC power.
Technical Specification
Gain Range +20dB to +86dB
Maximum Input Level -6dBu
Equivalent Input Noise 130dB Ref. 80dB gain with 150Ω termination
Equivalent Input Noise 128dB Ref. 50dB gain with 150Ω termination
Frequency Response ±0.5dB 20Hz to 22kHz Ref 50dB gain @ 1kHz
Gain Range -83dB to +10dB
Maximum Input Level +25dBu
C.M.R.R. >70dB
Frequency Response ±0.2dB 20Hz to 22kHz Ref 0dB @ 1kHz
Gain Range -66dB to +11dB measured @ Headphone output
Maximum Input Level +25dBu
C.M.R.R. >60dB
Frequency Response ±0.5dB 20Hz to 22kHz Ref 0dB @ 1kHz
Maximum Output Level (Limiter Off) +24dBu
Frequency Response ±0.5dB 20Hz to 22kHz Ref 0dB @ 1kHz
Noise -94dB Average weighting Ref +8dB Line input
THD & N <0.02% Ref. 1kHz @ +8dBu
THD & N <0.065% Ref. 1kHz @ +18dBu 1% Distortion Point: +18dBu @ 24Hz
Maximum Output Level Limited +8dBu
Frequency Response ±0.5dB 20Hz to 22kHz Ref 0dB @ 1kHz
Noise -94dB Average weighting Ref +8dB Line input
THD & N <0.02% Ref. 1kHz @ +8dBu
Maximum Output Level Limited +25dBu
Frequency Response ±0.2dB 20Hz to 22kHz Ref 0dB @ 1kHz
Noise -98dB Average weighting Ref+8dB Line input
THD & N <0.002% Ref. 1kHz @ +8dBu
Gain Range -66dB to +11dB
Maximum Output Level +19dBu
Frequency Response ±0.5dB 20Hz to 22kHz Ref 0dB @ 1kHz
Noise -85dB Average weighting Ref +8dB Line input
THD & N <0.005% Ref. 1kHz @ +8dBu
Headphone Outputs 2 x locking headphone jack socket for positions 1 & 2
Microphone Inputs 2 x XLR-3 pin latching female for positions 1 & 2
Microphone/Line Input 1 x XLR-3 pin latching female for position 3
Prog, A, B & C Inputs 4 x XLR-3 pin female (transformer balanced)
Comm1-3 Outputs 3 x XLR-3 pin male (electronic balanced)
Talkback A & B Outputs 2 x XLR-3 pin male (transformer balanced)
Mix 1 & 2 Outputs 2 x XLR-3 pin male (transformer balanced)
GPIO Port 15-way ‘D’-type socket
Mains Input Universal filtered IEC, continuously
Fuse Rating Anti-surge fuse 1A 20 x 5mm
DC Input XLR-4 pin male 12V DC, 650mA Typical, 850mA Maximum
Earth PointM4 stud.
Dimensions 270mm (W) x 230mm (D) x 70mm (H - front) x 95mm (H - rear)
Weight 3.34kg
Dimensions 46.5cm (W) x 36cm (D) x 17.6cm (H)
Weight 3.0kg
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