Sonifex CM-ULR1 | 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 a RJ45 with StudioHub+™ pinout. 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:

Product Features

• Stereo unbalanced input on stereo phono connectors.
• Stereo balanced line output via RJ45 with StudioHub+™ pinout.
• 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 a RJ45 with StudioHub+™ pinout.

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-ULR1): 1 x RJ45 female StudioHub+™ pinout

Equipment Type

• CM-ULR1: Unbalanced to balanced audio converter, RJ45 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-ULR1 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-ULX1 Unbalanced to Balanced Audio Converter

Official Links

• Official Product Page