Category: Matching Converters
What The Press Said:
KitPlus, July-August 2018 >
CM-LUR1 Balanced to Unbalanced Audio Converter
This product allows the connection of a stereo balanced line input via RJ45 with StudioHub+™ pinout to a stereo unbalanced output on stereo phono connectors.
It is transformer balanced, with a 2:1 ratio, so 6dB of attenuation is added to the input to help interface with the lower signal levels associated with consumer outputs.
This unit is a passive version of the RB-LU4 (though only 1 x stereo channel), and provides you with an alternative to having to interface a balanced output to an unbalanced input via specialist cables (either by shorting the non-phase to ground or disconnecting it).
It is particularly useful where a shared balanced audio feed needs interfacing to an unbalanced input on one or more pieces of equipment. Using a CM-LUR1 or CM-LUX1 galvanically isolates the audio, allowing you to connect via phono cables to an unbalanced input without compromising the distributed feed.
Connectors & Controls
The stereo analogue input is on a female RJ45 connector with the following standard StudioHub+™ pin assignments:
RCA Phono Analogue Outputs
This unit uses a stereo unbalanced line output on a RCA phono connector with the following connections:
CM-LUR1 Technical Specification
|Input/Output Level Ratio:||2:1|
|Input/Output Impedance Ratio:||4:1|
|Max Input Level:||+28dBu|
|Max Output Level:||+22dBu|
|Frequency Response:||20Hz to 20kHz, +0/-0.5dB|
|Distortion Ref +8dBu (Output):||<0.01%|
|Common Mode Rejection:||>80dB|
|Balanced Line Input::||1 x RJ45 female StudioHub+™ pinout|
|Unbalanced Line Output:||2 x RCA phono connectors
|CM-LUR1:||Balanced to unbalanced audio converter, RJ45 input|
|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