Good small/single outlet power conditioner for preamp.


Anyone know what’s out there? 
I am demoing a very nice preamp but it, for currently an unknown reason, does not play well with my Puritan PSM156 conditioner. The pre exhibits noise/hum from the speakers with any source ICs plugged into it. 
But the preamp straight to the wall is hum free and all is fine. 
If I wanted to keep this pre, straight to the wall is not ideal. So I am preliminarily curious what nice small/single outlet power conditioners are out there for me to consider… 

thanks

128x128jriggy

@erik_squires   Hey, what about Equitech 2Q. Ok it's more than he wants- but Furman is also sizeable  :)

@ptss Furman makes single strips like the PST-8d that include the filter/surge protection features which is much less expensive and much smaller than the Elite versions. 

The must-have features from Furman are SMP and LiFT (Series protection and linear filtering).  Keep an eye out because they make a lot of products that don't include those.

If you plug the new pre-amp into your power amp with no source devices attached (while connected to the PSM156) - any noise from just the pre-amp and power amp?

If so, try a different set of interconnects? Are you using RCA or XLR cables to connect the Pre to the Power? Does the Pre-amp have a three prong power cord or two prong? If all is silent, then add one device at a time and see if one device triggers the hum. I have never seen a Puritan cause noise.

@jriggy  I had the same issue when introducing one of my valve FM tuners to my system. A different tuner works perfectly.

I trialled the 156 and it didn't work in my system, altering piano sound too greatly. I have since enjoyed a UK built "AC-2K Balanced Mains Supply". This reduces noice floor and enhances clarity and impact in my system while not emasculating natural sound of piano or other instruments. Good luck.

Grounding issue? Maybe you need to use a cheat plug on the preamp power cord?