NE5532 Preamplifier Preamplifier Tone Board 2 Channel Volume Control Description: Adopts NE5532 front chip for better performance. High quality potentiometer contact well, stable for audio output. with 1.6mm double-sided tin plate in 2.0 spray copper tin process to ensure the size of the current good performance, excellent quality. Fully enclosed dust potentiometer, the performance is more stable, more durable than the potentiometer. The alignment of the entire circuit board layout is very strict and reasonable, the overall traces with little grounding Stable and reliable, constant and low-frequency strong signal-to-noise ratio is very good, wide dynamic range; clear details, excellent transient response, and play a variety of music for the occasion, very good performance in the family playback environment. Specification: Material: ABSMetal; Panel size: about 90mm*23mm Center hole distance: 35MM Working voltage: DC/9V-30V Number of channels: two-channel audio The package includes: 1 piece of NE5532 preamplifier board 2 pieces of line Note: (1 inch 2.54 cm) Please check the size measurement and photo carefully before making payment. Due to the difference between different monitors, the picture may not reflect the actual color of the item.