The RDL STA-2A is a professional dual-channel line-level audio preamplifier designed for high-gain, high-fidelity applications. Each channel features bridged 20 kΩ inputs that accept balanced or unbalanced signals, with adjustable gain up to +24 dB using precision 25-turn audio taper potentiometers. The STA-2A is capable of driving long balanced audio lines into 600 Ω loads, making it ideal for demanding installations.
Equipped with wideband circuitry, the STA-2A delivers low noise, ultra-low distortion, excellent phase response, and superior audio clarity. Its outputs are designed for low-impedance, high-current operation, ensuring reliable performance even when interfacing with challenging audio loads.
The module includes RDL SupplyFlex™ power input, allowing operation from floating 24 Vdc, bipolar ±12 Vdc/±15 Vdc, or ground-referenced 24 Vdc sources, providing installation flexibility in commercial, studio, and AV environments.
Key Features – RDL STA-2A
-
Dual-channel line-level preamplifier
-
Adjustable gain up to +24 dB per channel
-
Balanced or unbalanced audio inputs
-
Conversion between high and low impedance
-
Low-impedance, high-current line drivers
-
Wideband design with low noise and distortion
-
RDL SupplyFlex™ power input configuration
