CM-TBU - Audio Equipment Sonifex - Free user manual and instructions
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| Product Type | Professional Audio Equipment |
| Brand | Sonifex |
| Model | CM-TBU |
| Application | Broadcast and studio audio monitoring |
| Power Supply | 12V DC via external AC adapter |
| Audio Inputs | Balanced XLR and unbalanced RCA line inputs |
| Audio Outputs | Stereo headphone output and balanced XLR outputs |
| Controls | Volume, talkback, and source selector switches |
| Indicators | Power LED and signal present LED |
| Connectivity | RCA, XLR, and TRS connectors |
| Chassis | Half-rack aluminium housing |
| Dimensions | 220 mm x 160 mm x 50 mm |
| Weight | 0.9 kg |
| Mounting | Desktop placement or rack-mount kit |
| Operating Temperature | 0 °C to 45 °C |
| Cleaning | Wipe with a soft dry cloth; avoid liquids |
| Safety | CE certified and RoHS compliant |
| Repair | Consult qualified personnel for internal repairs |
Frequently Asked Questions - CM-TBU Sonifex
How do I connect the CM-TBU to a mixing console?
Use the balanced XLR outputs to connect to your mixer's line inputs. Connect the source to the RCA inputs for unbalanced signals. Ensure both devices are powered off during connection. Press the source selector to choose the appropriate input. Adjust the volume gradually.
Can I use the CM-TBU with a dynamic microphone?
Yes, the CM-TBU is designed to work with dynamic and condenser microphones. Use the XLR input on the front panel. For condenser microphones, activate the +48V phantom power switch if available. Check the input level and adjust accordingly.
What is the talkback function used for?
The talkback function allows the operator to communicate with live talent or remote contributors without switching the main audio feed. Press and hold the talkback key to speak into the Gooseneck microphone or headset, while the output is routed to the talent's headphones.
How do I mount the CM-TBU in a rack?
The CM-TBU includes a rack-mount kit. Attach the mounting ears to the sides of the unit using the provided screws. Then, slide the unit into a standard 19-inch rack and fasten the ears to the rack rails. Ensure adequate ventilation.
Is the power supply included?
Yes, the CM-TBU is supplied with an external AC adapter. The adapter outputs 12V DC and includes center-positive connector. Always use the correct voltage to avoid damage.
How do I clean the device safely?
Disconnect the power supply before cleaning. Use a soft, lint-free cloth slightly dampened with water or a mild detergent. Do not use solvents or abrasive cleaners. Avoid letting moisture into the connectors or vents.
What is the warranty period?
Sonifex provides a 12-month warranty from the date of purchase. The warranty covers manufacturing defects and does not cover damage from misuse, improper voltage, or unauthorized repairs. Contact your dealer for service.
Can I connect headphones with a 6.35mm jack?
Yes, the headphone output uses a 6.35mm stereo jack. You can use an adapter for 3.5mm headphones. Ensure the impedance is within the range supported by the amplifier, typically 32-600 ohms.
Are spare parts available?
Sonifex supports the CM-TBU with spare parts such as power supplies, knobs, and connectors. Contact your local distributor or Sonifex directly for availability. The device is designed to be repairable.
Can the CM-TBU be used with a laptop for recording?
Yes, if your laptop has a line output or an external audio interface, you can connect it to the RCA line inputs. This allows monitoring and talkback while recording. Use appropriate cables and check levels to avoid distortion.
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USER MANUAL CM-TBU Sonifex
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Product information
Brand : Sonifex
Model : CM-TBU
Category : Audio Equipment