Maxon D & S II Distortion/Sustainer Guitar Pedal Japan

Originally released in 1974, the D&S II Distortion & Sustainer II is a precursor to the amp-overdrive simulators of later years. With its mild drive, relaxed sustain and high output, the D&S II sits the fence between an overdrive and a distortion. This unique "split personality" makes the D&S II perfect for players that seek a natural-feeling drive sound but with more drive and output than an OD generally provides.
The D&S II uses germanium diodes in this clipping stage, so the D & S II can distort even low level tones, thus making a smoother distortion. In addition, the germanium's rectifier creates a somewhat rounded waveform of the clipped signal that contributes to the unit's warm, natural distortion.  Germanium diodes are now a very rare component and have generally been replaced with silicon diodes in other manufacturer's circuits.
The D&S II tone control uses a low range boost/cut circuit for added bottom end and features the JRC4558 IC chip, generally regarded as sonically superior to other op amp models. The combination of these two elements creates a pedal with more low-end punch than your typical overdrive.
This is just a great sounding quality pedal – period !  This one is in good condition, couple of scratches on the case shown in the pictures and a Velcro strip on the back for mounting to you pedal board.