RDl STA-2A Dual High Gain Line Amplifiers

RDl STA-2A Dual High Gain Line AmplifiersThe STA 2A is a dual channel, line level audio preamplifier. Each channel is identical. The audio inputs are bridged at 20 k and accept either an unbalanced or a balanced audio signal. Gain is adjustable from unity to +24 dB using a 25 turn precision audio taper trimming potentiometer. The output line driver circuits are designed to drive long balanced audio lines into 600 loads. The STA 2A features wideband circuitry for excellent phase response, low

The STA-2A is a dual-channel, line-level audio preamplifier. Each channel is identical. The audio inputs are bridged at 20 kΩ and accept either an unbalanced or a balanced audio signal. Gain is adjustable from unity to +24 dB using a 25-turn precision audio taper trimming potentiometer. The output line driver circuits are designed to drive long balanced audio lines into 600 Ω loads.

The STA-2A features wideband circuitry for excellent phase response, low noise, low distortion and exceptional audio clarity. RDL's SupplyFlex power input configuration is included in the STA-2A. The power supply input may be fed from a floating (not ground-referenced) 24 Vdc power source, from a bipolar power supply (+/- 12 Vdc or +/-15 Vdc) or from a ground-referenced 24 Vdc power supply.

Many audio products provide optimum performance when feeding into a bridging input, but may not provide the output needed to directly drive low-impedance lines terminated with 600 Ω transformers. The STA-2A is specifically designed for such installations, and is also ideal in installations requiring high gain in line-level audio transmission.

Specifications

• Up to 24 dB Gain in Audio Lines
• Conversion between Unbalanced and Balanced
• Conversion between High and Low Impedance
• Low-Impedance, High-Current Line Drivers
• Dual-Channel Line-Level Preamplifiers
• High Gain, High Output, High Performance
• RDL® SupplyFlex™ Power Input Configuration