What is the maximum amperage on the 15 volt side for the Pro-ject Power Box ds2 Sources

So what is it or what was it that requires 18V/~0.5A, per oldhvymec's post?  He refers to "it", and I thought for sure he was referring to the TT.  Now I am just curious.

Millercarbon, What the heck are you talking about?  Who wants to get 100A out of a wallwart?  Furthermore, not all wallwarts are simple transformers; some contain rectified power supplies and can directly deliver DC voltage; I suspect that is the type we are talking about, unless I too have misunderstood the OP.


Thanks to oldhvymec, we now know that the OP is off base a bit, as he needs 18VDC (and ~0.5A) into the TT, not 15V, just to begin with.  And any transformer, whether its part of an AC or a rectified DC supply, will get warmer than normal, even hot, if it's overtaxed.  But one can't ask a 15VDC supply to deliver 18VDC.

I realize that to detect a voltage sag, you need a voltmeter and access to nodes on the power input side of the tt where you can assess DCV.  That might be a problem.  In which case, you might just hook it up and let the turntable run for an hour or so while monitoring the temperature of the PS chassis.  If it gets hot, stop.

I appreciate your predicament. Since wall warts are not very expensive, why not avoid the issue by using two discrete supplies? In any case, what erik is saying is that if the PS cannot supply 1.6A of current under the load represented by turntable, the result will be that the DC voltage measured at the turntable will sag below 15V. That might or might not noticeably affect performance of the tt, depending of course on how deep is the sag. If there is no voltage sag, then at least you are not vastly exceeding the capability of the PS. But most of us worthy of the appellation "audiophile" would want to know that the PS potential is in excess of what is needed. If you see 15V and the PS does not get hot or very warm to the touch, then you are nevertheless probably OK.