[SteevA]

I probably did not listen to the Versalex long enough without the DPS to get its sound ‘institutionalised’ in my mind so while I think the DPS made an improvement to that I may have just been imagining things.

However, I do know the sound of the system when running my CD player and I am certain that adding the DPS has improved that.

So this seems to be pointing to the addition of the DPS indirectly improving things by the removal of a switch mode power supply from the mix since the DV P-75, which I always leave on, now also runs off the DPS.  Based on hearsay regarding swith mode PSUs, rather than prior experimentation, this was not really a surprise and is one of the reasons I wanted to try the DPS.

Had I used the Versalex longer on its own switch mode PSU then adding a DPS would possible have made an even more obvious improvement to both CD and Vinyl, by removing two switched mode power supplies.

This does not rule out the DPS having some additive benefit as well as this subtractive one.

Steve

[threadkiller]

Hi Steve,
I'm confused.. what does the cd player have to do with the DPS?
And can't you go back to the wall wart if you want to hear the Versalex on its own?
Are you using the cueing lift on the Versalex?

[SteevA]

The CD player has nothing directly to do with the DPS, but they both plug in to the same mains supply, as does the rest of my system.  The DPS replaces switch mode power supplies.  In my case, one for the P-75 and now one for the Versalex. 

I have read on many occasions that having a switch mode PSU connected to the mains supply of your system has, or can have, a negative influence on that system.  I have never actually tested this however.

If it were true, then removing the switch mode PSU(s), by replacement with a DPS, could be expected to improve the performance of not only the CD player but also the pre amp and possibly, although less likely, even the power amp.

My recent experience seems to support this in that the sound of the system when playing a CD has improved when I added the DPS and the only possible way I can think that adding the DPS could have caused this is by the removal of the P-75’s original PSU from the mains supply.

Yes I do use the cueing lift, but have not installed the finger lift.

Steve

[threadkiller]

Ah, I see now.  I have heard of that as well, but never did any AB comparisons.

Leave the finger lift off if you can manage without.  That I have AB'd, and it is better without.  And for most even easier to cue.

[SteevA]

...Leave the finger lift off if you can manage without.....

I have no plans to install it.