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.

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:

Pin Type & Connection:
White Tip: Left.
White Screen: Ground.
Red Tip: Right.
Red Screen: Ground.
The stereo balanced line output is on a female RJ45 connector with the following standard StudioHub+™ pin assignments:

Connection:
1 Left Phase.
2 Left Non-Phase.
3 Right Phase.
4 Ground.
5 N/C.
6 Right Non-Phase.
7 N/C.
8 N/C.

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

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
 

Handbooks & Guides

CM-ULR1 Handbook[Download]

Brochures

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Declarations

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Firmware

Firmware Notes