Radio Design Labs FP-UBC2

The FP-UBC2 is the ideal choice for connectorized conversion from unbalanced to balanced audio. This module features two identical channels. Gold-plated phono jacks are utilized for each unbalanced input channel. Each output is balanced, connected through an XLR jack. A gain trim potentiometer is provided for each channel.

The normal gain setting is indicated for the trimming potentiometer. This setting produces a +4 dBu balanced output for a –10 dBV unbalanced input. The gain is adjustable –5 dB to +10 dB from the normal gain. Therefore, a +4 dBu output signal is possible from input signals ranging from –20 dBV to –5 dBV.

Features:

• Stereo Unbalanced to Balanced Audio Conversion
• Connectorized Audio Converter
• Output Level Trim
• Low-Noise and Low-Distortion Conversion
• Cabinet, Shelf or Rack Mounting
• Convenience of RDL FLAT-PAKs

Specifications:

• Amps per FP-UBC2: 2 identical circuits (stereo or dual mono operation)
• Gain: -5 dB to +10 dB (adjustable relative to +4 dBu output for –10 dBV input); (separate controls for each channel)
• Input Level: -20 dBV to -5 dBV (for +4 dBu output)
• Input Impedance: 10 kO
• Input Configuration: Unbalanced Output Impedance: 150 O balanced, drives 600 O or 10 kO lines
• Output Configuration: Balanced or unbalanced
• Frequency Response: 20 Hz to 40 kHz (+/- 0.25 dB)
• THD+N: < 0.05%; typ. 0.01% (1 kHz)
• IMD: < 0.02%
• Output Level: +4 dBu
• Headroom: > 18 dB (at rated output level of +4 dBu)
• Noise: < -85 dB referred to +4 dBu (20 Hz to 20 kHz)
• Crosstalk: Better than 70 dB (20 Hz to 20 kHz);<-80 dB (typ. 1 kHz)
• Power Requirement: GROUND-REFERENCED 24 Vdc @ 50 mA
• Dimensions: Height: 1.29 in. 3.28 cm; Width: 3.25 in. 8.26 cm; Length:  4.07 in. 10.34 cm