P&S's Opto-Potentiometer is designed with a totally new approach. It is clearly different from the existing mechanical or digital audio volume control. It took long hours of works and trial and errors to make this product. 

Opto-Potentiometer made by P&S Technologies Inc. is designed and developed for the high end audio system aiming at true high performance and sound quality desired by professionals. It is a non-contact optical audio volume control using optical devices with high purity. Its performance surpasses all other existing high quality audio volume controls and it is compatible with various audio volume control ICs and software such as PGA2310, PGA2311 and CS3310. So, P&S's Opto-Potentiometer can quickly substitute for the existing high performance volume controls in the world's market of high-end audio products