The pioneer in optical phono cartridges, DS Audio elevates the sound of vinyl playback with its new Grand Master system. This pure analog playback system combines a new “dual mono” cartridge design featuring 50% lower weight moving parts with a massive 2 chassis phono stage weighing over 100 lbs.
 
DS Audio's  flagship 2 chassis optical phono stage/equalizer - it sounds like 100 lbs.
The DS Audio Grand Master phono stage features 2 massive chassis, weighing together over 100lbs. Separating the dual mono audio circuitry from the power supply chassis, which houses 3 independent supplies, provides unmatched dynamic realism.
The Grand Master audio chassis incorporates discrete design and meticulous layout, with both special film capacitors and non-induction winding resistors custom built to DS Audio’ s specifications. The equalizer offers both single-ended RCA and balanced XLR outputs and a total of 6 selectable low-frequency cut-off points allowing the Grand Master to work seamlessly with any hi-fi system.
 
Inside the Power supply chassis, large copper bus bars connect a total of three transformers, each with a capacity 1.5 times greater than found in our Master 1 equalizer. Independent transformers are dedicated to the left and right channels, with the third handling the power to the optical cartridge.
 
Combining  2.34 million uF and 2.97 million uF electrolytic capacitors within both the equalizer and power supply units results in a significantly stronger power supply with extended reproduction of deepest low frequencies and dynamic range.
 
DS Audio’s technology allows unmatchded performace and flexibility
The Grand Master cartridge and phono stage are compatible with all DS Audio’s optical cartridges and equalizers providing many choices and upgrade paths for the ultimate in pure analog vinyl enjoyment.