RDL ST-UBA2 2-Channel Unbalanced to Balanced Amplifier

For integrators who need clean, reliable audio conversion for AV, security and monitoring systems, the Radio Design Labs ST-UBA2 2-channel unbalanced-to-balanced amplifier delivers professional-level performance and easy integration. This pro amplifier converts consumer-format sources—CD players, PCs, DVR audio, TV audio and other unbalanced gear—to a stable +4 dBu balanced output, reducing noise and improving signal integrity into mixers, recorders and surveillance head-ends. With two channels and a mono-sum output, the ST-UBA2 lets you feed monitors, patch-bay jacks or subwoofer amps from a single device. Dual-LED VU metering gives fast visual confirmation of levels, while the 20 Hz–20 kHz frequency response preserves full audio detail. The Stick-On form factor and low-power 33 V DC input make it simple to mount in racks, control rooms or discreet surveillance enclosures. Ideal for security, surveillance and professional AV installations that demand consistent audio levels and trouble-free operation. Add the RDL ST-UBA2 to your next monitoring or recording deployment to eliminate hum and level mismatch—order now for immediate system upgrades.

• Converts consumer-level unbalanced sources to professional +4 dBu balanced outputs for reliable, low-noise integration
• Dual-channel design with mono-sum output gives flexible routing for monitors, patch bays or subwoofer amps
• Dual-LED VU metering provides instant visual level monitoring for left and right channels to simplify setup and troubleshooting
• Wideband 20 Hz–20 kHz frequency response preserves audio clarity across the full audible range
• Compact Stick-On form and 3-year warranty deliver durable, rack-friendly deployment and long-term reliability