Sonifex CM-TBU Line Power Telephone Balance Unit *USA Small Business*

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Sonifex CM-TBU Line Powered Telephone Balance Unit

Need to connect a phone line to your audio setup? The Sonifex CM-TBU Line Powered Telephone Balance Unit makes it simple. This small but powerful device lets you send and receive phone calls through professional audio equipment, making it perfect for interviews, live broadcasts, or remote communication. No need for batteries or a wall plug—just connect it to a phone line and you're good to go.

Sonifex CM-TBU Line Powered Telephone Balance Unit Review

The Sonifex CM-TBU Line Powered Telephone Balance Unit gives you a reliable 4-wire connection to any standard analog phone line. It runs completely off the phone line itself, which means fewer cables and no hassle with power adapters. Designed with clarity and control in mind, the unit includes separate knobs to adjust what you send and hear. It also features built-in tools to reduce echo or feedback, helping your audio stay clean and focused even across long distances.

Sonifex CM-TBU Line Powered Telephone Balance Unit Features

• Doesn’t need batteries or a power outlet to work
• Helps cut out echo so voices stay clear
• Easy-to-see lights show when a call is coming in
• Simple knob controls to adjust volume
• Can plug straight into a presenter’s earpiece
• Small and tough enough to take anywhere

Sonifex CM-TBU Line Powered Telephone Balance Unit Specs

• Input impedance 10k ohms, transformer coupled
• Output impedance 150 ohms, transformer coupled
• Audio level range from -12dBu to +6dBu
• Sidetone rejection averages 30dB to 40dB
• Off-hook voltage at least 6V
• Size 3.0" W x 3.3" D x 1.7" H
• Weight 0.60 lbs