RDL STA-1 Dual Balanced/Unbalanced Line Amplifier

Dual Balanced/Unbalanced Line Amplifier - 12 to 20 dB Gain The STA-1 is a dual-channel line-level preamplifier with bridging inputs, adjustable gain or loss, and low-impedance outputs. Each of the two identical circuits is both an electronic line transformer and a line amplifier. Hook up the STA-1 just like a pair of audio transformers with gain. True dc amplifiers produce unsurpassed audio clarity, high common-mode rejection, ultra-low distortion and low noise. The STA-1 is perfect for most line amplification, impedance or balanced/unbalanced conversion. The STA-1 operates from floating or bipolar dc power. For installations where ground-referenced power is preferred, use the STA-2A Dual High Gain Line Amplifiers.Features: Up to 20 dB Gain in an Audio Line Conversion from Balanced to Unbalanced Conversion from Unbalanced to Balanced Conversion from High to Low Impedance Conversion from Low to High Impedance Bridge an Audio Line Feed Precisely Match Audio Levels Specifications: Amps per STA-1: 2 identical circuits (stereo or dual mono operation) Gain: 20 dB (adjustable, separate controls for each channel) Input Impedance: 10 kΩ bridging Input Configuration: Balanced or unbalanced Output Impedance: 200 Ω balanced (drives 600 Ω or 10 kΩ lines) Output Configuration: Balanced or unbalanced Frequency Response: dc to 25 kHz (+/- 0.25 dB) THD+N: 0.003% to 0.009%; (0.005% nominal) Output Level: +4 dBu Headroom: 18 dB (at rated output of +4 dBu) Noise: -80 to -85 dB (referred to +4 dBu); -98 to -103 dB (referred to +22 dBu) CMRR: -70 dB to -80 dB (100 Hz) Crosstalk: Better than 75 dB Power Requirement: FLOATING, 24 Vdc @ 50 mA Ambient Operating Environment:0 C to 55 C