Sonifex CM-ULX1 | Unbalanced to Balanced Audio Converter

This product allows the connection of a stereo unbalanced line input on phono connectors to a balanced line output via 2 x male XLRs. It is transformer balanced, with a 1:2 ratio, so 6dB of gain is added to the input to help interface with the higher signal levels associated with professional outputs. This unit is a passive version of the RB-UL1, and provides you with an alternative to wiring an unbalanced output directly into a balanced input. By placing this box close to the unbalanced output (before the cable run to the balanced input), the connection will benefit from the input device’s common mode rejection capabilities, reducing noise and interference. This unit uses a stereo unbalanced line phono connector with the following connections: Pin Type & Connection: White Tip: Left. White Screen: Ground. Red Tip: Right. Red Screen: Ground. The stereo analogue balanced line output is on two male 3 pin XLR connectors with the following pin assignments:

Product Features

• Stereo unbalanced input on RCA phono connectors.
• Stereo balanced line output via XLR-3.
• Transformer-balanced input with 1:2 ratio.

Typical Applications

Creates a connection of a stereo unbalanced line input on phono connectors to a balanced line output via 2 x male XLRs.

Product Category

Passive Converters

Technical Specifications

Audio Specification

• Input/Output Level Ratio: 01:02
• Input/Output Impedance Ratio: 01:04
• Max Input Level: +22dBu
• Max Output Level: +28dBu
• Frequency Response: 20Hz to 20kHz, +0/-0.5dB
• Noise: <-100dBu A-wgtd
• Distortion Ref +8dBu (Output): <0.02%

Connections

• Stereo Unbalanced Line Input (CM-ULR1 & CM-ULX1): 2 x RCA phono connectors
• Balanced Line Output (CM-ULX1): 2 x male XLRs

Equipment Type

• CM-ULX1: Unbalanced to balanced audio converter, XLR output

Physical Specification

• Dimensions (Raw): 7.7cm (W) x 8.3cm (D) x 4.2cm (H)
• Dimensions (Raw): 3.0” (W) x 3.3” (D) x 1.7” (H)
• Weight: Nett: 0.22kg Gross: 0.33kg
• Weight: Nett: 0.49lbs Gross: 0.73lbs

Support and Downloads

Handbooks & Guides

• CM-ULX1 Handbook

Brochures

• Click to visit the brochures page.

Declarations

• Click to visit the declarations page.

Related Products

• CM-LUR1 Balanced to Unbalanced Audio Converter
• CM-LUX1 Balanced to Unbalanced Audio Converter
• CM-MNT1 Desk Mount Panel
• CM-ULR1 Unbalanced to Balanced Audio Converter

Official Links

• Official Product Page