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Category: Matching Converters



cm-ulr1
cm-ulr1
cm-ulr1
cm-ulr1
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Studiohub logo

StudioHub+™ is a registered trademark of Radio Systems Inc.

CM-ULR1 Unbalanced to Balanced Audio Converter.


What The Press Said:
KitPlus, July-August 2018 >

 

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 istransformer 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.

Block Diagram

cm-ulr1 Diagram

Connectors & Controls

RCA Phono Inputs

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

Analogue Outputs CM-ULR1

The stereo balanced line output is on a female RJ45 connector with the following standard StudioHub+™ pin assignments:

Pin No 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

 

CM-ULR1 Technical Specification

Audio Specification

 

Input/Output Level Ratio: 1:2
Input/Output Impedance Ratio: 1:4
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)
3.0” (W) x 3.3” (D) x 1.7” (H)
Dimensions (Boxed): 12.7cm (W) x 22.9cm (D) x 7.6cm (H)
5” (W) x 9” (D) x 3” (H)
Weight: Nett: 0.22kg Gross: 0.33kg
Nett: 0.49lbs Gross: 0.73lbs

 

More Information About This Product

  • Brochure
  • Handbook
  • Accessories & Spares
  • Software Updates
  • Example Of Usage

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Sonifex Ltd. 61 Station Road, Irthlingborough, Northants, NN9 5QE, UK. Tel: +44 (0)1933 650700 Fax: +44 (0)1933 650726 EMail: sales@sonifex.co.uk