If you're looking for a compact, sturdy component to power your subwoofer, then look no further! The NHT SA-2 is a powerful and versatile monoaural amplifier optimized for powerful low frequency reproduction. Its Class G design enables cooler operating temperatures and has dual-rail power supplies for high-output, low-distortion audio. Perfect for getting all the power to your subwoofer that you need! CONDITION SPENCERTIFIED- Fully certified by Spencer Refurbished and SPENCERTIFIED Every function has been confirmed 100% working. We have cleaned it inside and out and replaced any worn parts. A recap was performed if necessary. All pots, knobs, connectors and boards have been cleaned with CRC cleaner. Cosmetic Condition: Very Good. Functional Condition: Works Like New . WHAT'S IN THE BOX? NHT SA-2 Component Subwoofer Amplifier Power Cord Other information about the NHT SA2 System Type: 120 watt discrete monaural subwoofer amplifier. Class G. Frequency Response: 25Hz ? 150Hz, +/-3dB. Distortion: Less than 0.03% at full power. Crossover: Continuously variable low pass crossover: 35-150Hz, 18dB/octave Selectable high-pass crossover: 50, 75, 100Hz, 12dB/octave (line level) Fixed high-pass at 100Hz, 6dB/octave (high level) Connectors: Line level inputs and outputs Speaker level inputs and outputs Defeatable auto-standby mode 2 position selectable phase control (0 and 180 degrees) DIMENSIONS 16" x 11.5" x 3.7" (Length x Width x Height) MANUFACTURER Made in Taiwan