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Re: Acoustic Revive DSIX 12 volt Power supply

Posted by jcarr (M) on October 9, 2008 at 12:53:18

In Reply to: RE: Re: Acoustic Revive DSIX 12 volt Power supply posted by frequentflyer on October 9, 2008 at 11:26:28:

The magic of the synchro-isolator design is in the design concept and schematic. With a decently laid-out circuit board, building the circuit shouldn't be particularly challenging. If the guys doing the circuit-board layout and assembly are competent and can follow directions precisely, I fail to see why there is any need to enlist the assistance of old veteran audio craftsmen (^o^).

FWIW, the flying cap / synchro-isolator principle has the potential to be very much more battery-like and quiet than any conventional AC mains-driven power supply. If the DPS1 was conventional in its approach, the King-Rex is likely a good substitute, and the synchro-isolator circuit will likely sound better than either (Shibazaki noted that the choice of power supply used had a clear effect on the sound of the DSIX). If the DPS1 is based on the synchro-isolator circuit or is similar in approach, it would be the one to get.

I don't remember if I own the commercial version of the DSIX or not, but I do have Shibazaki's hand-drawn schematic for Generation 11. This uses an EIAJ-4J power connector with the center as +12V and the surrounding ring as ground. If in doubt, I would ask the advice of a competent electronics technician, since he should be able to tell you what the polarity should be (and rewire the umbellical cable if required).

BTW, if you want to see more information, the M&J issue that contains the DSIX article introducing the synchro-isolator is December 2000. regards and hth, jonathan carr

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