ITEM NAME:2x HIFI Preamp Tone Board Bass Treble Volume Control Pre-amplifier Board Description: Module: DX338A series preamplifier volume control boardï ¼â€ºVoltage: dual AC12v Operational amplifier type: NE4558 (with four buttons for treble, bass, balance, total volume control). AA-type tone circuit technology, capable of driving composite dynamic impedance load headphones, combined with attenuated tones. With four 25V 1000UF filter capacitors. With equal loudness and through switch for improving sound characteristics. The circuit board has reasonable wiring, low noise, and beautiful component layout. Package Includes: 2 Piece Preamplifier Volume Control Board Note: Please allow 0-1cm difference due to manual measurement.(1cm=0.39inch, 1inch=2.54cm) Due to the difference between different monitors, the picture may not reflect the actual color of the item. Please understand. Thank you!.With equal loudness and through switch for improving sound characteristics. The circuit board has reasonable wiring, low noise, and beautiful component layout. AA-type tone circuit technology, capable of driving composite dynamic impedance load headphones, combined with attenuated tones.
