PS 1000 doesn't seem to isolate as well as expecte

Hi Guys,

I'm a neophyte. Been listening to music forever. Became an audiophile a few years back. Despite my board name, I'm a contemporary jazz listener. I listen to stuff I-tunes doesn't sell. Watercolors is a good idea of what I like. And of course... Keep on Rockin.

I have a couple PS Audio, PS 1000s and a Premier.

I'm listening to Martin Logan SL3s with a PS1000.

I had a wake up call. I turned off a very small light and there was a noticable "Pop" from the speakers. This is unsettling. What do you make of it? It repeated itself.

I just set up a new listening room in a new house. What bliss. It's been 18 months this time that I've been an audio exile.

Right now I'm patching together some stuff.

Q-Sonix 100 (running analogue out) as a source
EAR 868 as a pre-amp
Red Dragon Leviathans amps
Martin Logan SL3 speakers
No special ICs or PCs in the system yet. Onix speaker cables.
Exemplar Extant DAC out for repair.

I'm saving the good stuff...
Epiphany Audio 21-20
Bob Carver/Tim DeParavacini very low production tube amps
Virtual Dynamics (I bought Rick Shultz's personal cables)

Plus, I'm going to vinyl. Building a TT based on an 80s Victor 801.

But.. That Pop !!

Any thoughts?

I'm learning.

And loving the heck out of it. I never knew it could be so good.

My thanks in advance,, and,,

Keep on rockin ! :)
I own a PS Audio P600, and a PS Audio PPP as well. And a Furman REF20i for just the amp (and alternatly the video stuff)
So i can relate.
Two possibilities: first, if a wire is loose in the light switch, it will magnify the transient pulse a great deal. You should check the switch connections, and the receptical connections in the wall receptical for tightness. Copper deforms easily, and with a new house, they also may have been in a hurry. So turn off the power and check and tighten those connections at/in the walls.
A loose wire at a screw really does magnify the switch change greatly.
And remember the PS Audio reduces bad stuff by about ninty percent so some bad stuff still gets through the PS Audio designs.
A second possiblility: (though less likely)
Perhaps your light is not sending a pulse through the wiring, rather through the air? You may have some interconnect, or internal wiring of a component which is particulary susceptible to a radiated pulse.
Audio Research Phono boxes are very susceptible to outside noise entering, and i am certain other stereo items are also. Then any non insulated non coax interconnects like Kimber may be the source. EMF is a strange thing.
I would check the wiring thing first.
If it is a freestanding lamp, add a ferrite to the cord. ordinary 1" long 1/2 thick tubes work, i squeeze the folded wire through the hole and flip it over the other end so it is caught in it's own loop on all my non stereo cords, like for lamps... even the refrigerator.
You might also just replace the switch that is making the pop. Nearly any construction bits are the cheapest possible. Replacing it with a part from Menards or Home depot may make it quieter electrically.
If it is a small 12 volt light, the transformer inside it may be causing the transient, and sticking the ferrite on that cord might help. The lamp transformer may just not be very good and cause a back emf wave to travel into the powerline. but it too may have a loose wire at it's wall receptical.
Is everything connected through a PS Power Plant?
Yes. everything is plugged into the P-1000 except the swithand light which is across the room. It is a wall monted mini florescent.

It just surprised me so much. I put a lot of faith in the PS elecreical regenerators and the first time it happened...Well I just had to repeat it. The Pop is loud enough to make me feel the amp is at work.

Yesterday I realized it seems like the right channel only. So I'll take some time this evening trying to learn a bit.

I will look into the wires but something tells me to suspect that transformer.

Thanks for suggestions. I'll keep you informed of my progress.

This has me stumped since all your electronics are isolated with the use of the Power Plant. I would have thought that any spike and/or interference introduced into the power line by a contaminating source on the same circuit would have been filtered out.
Exactly my thoughts.

I spent some fruitless hours trying to set up a second system this afternoon.

But I did some simple tests. I wouls have no music playing. I turned the light on. I could hear light clicks from the right speaker synchronized w the flickering of the florescent light coming on. Then the loud pop turning off. Same thing three times in a row.

I don't believe it was effecting the left channel. It is further away.

I'm thinking airborne RFI. The powered speaker has something to do with the magnitude of the pop IMO.
Florescent light in or around audio equipment is a big NO-NO! Several threads regarding this have been discussed in the past. Do a search and read the replies/ remedies.

Can you replace with LED or battery type halogen?
Transformers/ballast in florescent lights and light dimmers are well known for introducing noise into the ac circuit. I would have thought that this noise/interference would have been filtered out by the PPP. Can you put your PPP on a different curcuit?
Are your ML stats isolated? Try plugging them each into their own isolated receptacles. Make sure that the amp that they are connected to is also isolated on its own.

If this fails, I would contact Alex at PS Audio to get some advice.

If it is at all practical, I would highly recommend running a dedicated line(s) to your system. I realize that this may well entail tearing out some drywall, but the results are well worth the effort.

Let us know how you come out…

Note: owned a pair of the SL 3’s years ago. I remember that the midrange and treble regions were outstanding, with a huge soundstage.
Hi there. Sorry to be slow. I thought I had responded.

I switched to the Acoustic Zen Adagio speakers just to hear them again. I did the same test. Same results.

I found an IC on the back of the right amp that seemed loose. The right was and still has the pop.

Changed the ICs and got a much lesser pop on either pair of speakers.

Everything is on the PS1000.

I really believe there is airborne interference because of these tests. It's not so bad now (much less)w a different set of ICs.

Thanks all for your help. I hope to be of some value here myself.
Oh yes. One more thing. The soundstage on the SL3s is indeed very large, and one of the reasons I have them.