MCM Electronics

Unbalanced To Balanced Line Combiner By Radio Design Labs (TX-LC2) MCM Part #555-18946

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$91.99 
MSRP: $124.71
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Specifications Top

Unbalanced to Balanced Line Combiner

The TX-LC2 is the ideal choice in installations requiring the active, isolated mixing of two unbalanced line-level audio sources to feed a balanced (or unbalanced) audio line.

The input circuits are high-impedance, line-level (-10 dBV) and are isolated from each other. Therefore the modules may be used to bridge an unbalanced stereo source without affecting the stereo separation. The output from the TX-LC2 is a mono mix of the stereo signal. Gain of the combined signals is adjustable from -10 to +10 dB (rel. +4 dBu output).

The TX-LC2 may also be used to mix two separate sources into a single output. The mixing circuit in the module is an active summing amplifier.

The output driver provides a 150 O balanced source to drive high or low impedance, balanced or unbalanced lines. The TX-LC2 is operated from a 24 Vdc power supply, and with reduced headroom it may be operated from a 12 Vdc power supply.

The input connectors make connection of the TX-LC2 easy. The broad gain range makes the TX-LC2 ideally suited to any installation where a balanced mono signal is needed from a stereo unbalanced source, particularly low-output consumer products such as certain televisions.

Use the TX-LC2 individually, or combine it with other RDL modules and accessories as part of a complete audio/video system.


Features:
  • Mix 2 Unbalanced Audio Signals to Mono Balanced
  • Combine Stereo Into Mono with Balanced Output
  • Output Gain Trim
  • Isolation Between Inputs
  • Unbalanced to Balanced Conversion
  • High-Quality Audio

Specifications:
Inputs (2): -10 dBV nominal, -22 dBV minimum
Input Impedance: 10 kO
Noise: < -85dB below +4dBu (-10 dBV input @ 12 dB gain)
THD+N: < 0.005%
Frequency Response:
. 10 Hz to 20 kHz (+/- 0.25 dB into bridging input)
. 25 Hz to 20 kHz (+/- 0.25 dB into 600 O)
Gain: Unity to +14 dB nominal (adjustable)
IMD: > 0.001%
Output: 150 O balanced, +4 dBu to drive low or high impedance, balanced or unbalanced lines
Headroom: > 18 dB
Power Requirement: GROUND-REFERENCED, 24 Vdc @ 30 mA
Ambient Operating Environment: 0° C to 55° C

Part Numbers
MCM Part #:555-18946
Radio Design Labs Part #:TX-LC2
Package Specifications & Dimensions
Weight:0.25 lbs.
Hazardous:No
RoHS Comp:Yes
Warranty:1095 days
Need to Return?
Length:4 in.
Width:2 in.
Height:2 in.
Shipping Information
Extra Shipping Charge:No
Drop Ship:No

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