Independent LED and photo-detector arrangement for the left and right channels
The new DS003 optical cartridge system has been optimized, by implementing an independent LED and photo-detector arrangement for the left and right channels. As a result the cartridge output voltage has greatly increased from 40mV to 70mV. The DS003 cartridge offers a greatly improved S/N ratio when compared to its stable mates, resulting in an even lower noise floor and far greater musical clarity.
Weight of shading plate reduced by more than 50%
The implementation of independent left and right channel LED’ s allows for the positioning of the optical system to be optimized as well as necessitating the use of a new shading plate that has been significantly reduced in size compared to our earlier designs. In addition to this reduction in size, the material used to produce the shading plate has changed from aluminium (as used in the second generation cartridges) to 99.9% pure beryllium.
Aluminum cantilever & Aluminum body
The DS003 cartridge features the combination of an aluminum cantilever with a line contact stylus. The cartridge body is made by aluminum and the structure has been designed in such a way as to promote maximum rigidity. In addition to these features, the DS003 utilizes internal wiring 1.6 times thicker than used in the second generation cartridges in order to
Changed the thickness of the circuit board and the thickness of the copper foil.
Compared to the DS002 equalizer, the thickness of the circuit board has been changed from 1.6 mm to 2.0 mm, and the thickness of the copper foil has been changed from 35µ to 70µ.In addition, the DS003 equalizer allows you to select the cutoff frequency for the low frequency range from four types, allowing you to select an output that better matches your system.
Hand-made in Japan circuit board
Every component part used in our products is tested and evaluated by our expert Japanese technicians.
In addition to using a specially printed circuit board, twist-connection of the component legs is further evidence of DS Audio’ s excellent attention to detail.
Each and every product is hand-made and quality assured by our skilled engineers.
DS 003 Optical Cartridge
Signal output: Photo-electric Conversion
Channel separation: 27dB more（1kHz）
Output signal level: 70mV (1kHz cartridge output)
Body material: Aluminum(A5052)
Cantilever holder material: Stainless
Needle pressure: 2.0g~2.2g(2.1g is recommended)
Stylus: Line contact
DS 003 Equalizer for Optical Cartridge
Output voltage: 500mV(1kHz Equalizer output)
Output impedance: RCA 120Ω
Pre amp input impedance: More than 10kΩ
Input terminal: RCA terminal
Output terminal: RCA terminal×2