Puritan 156 and Furman

Don't plug the Puritan into the Furman.  First, the Puritan is better than the Furman (I own a Furman Elite-15 PFi and a 156).  Second, cascading power conditioners like that is very likely to rob your music of dynamics, especially the amplifiers with no real positives that I can see.  An affordable tweak that is talked about in other threads on here are the Vera-Fi Snubway and MainStream plug ins.  I think they make an audible difference and they have a 30 day return policy.

+1 @pinwa 

Review here: https://www.audiosciencereview.com/forum/index.php?threads/puritan-audio-psm156-review-ac-filter.26136/

Conclusions: As you see, I have run a number of tests to give the PSM156 ample opportunity to show it can do something to improve audio but it can't even move the dial one hair. There is no indication or logic that would tell us that it can make an audible improvement. Yet the company says this in the feature list of this product:

* 52 cumulative stages of purification removes common and differential mode interference, enhancing clarity, staging and dynamics.
* Equal resistance routing to all outputs realises full dynamic performance.
* Integral earth management system inbuilt with cleansed ground and star earthing format further lowers the noise

None of these things is observed in the measurements.

The device however seems to have real filtering in there as opposed to toy implementation we see in other audio devices. So if you have audible mains related interference that is above a few hundred Hertz, then the PSM156 may have an effect.

As an audio fidelity improvement device, I can't recommend the Puritan Audio PSM156. As a mains filter in general, it seems to be well built and does a far better job than typical consumer gear sold for this purpose.

There will be no electronic damage by daisy-chaining the two units. How it affects the SQ needs to be determined.

My electricity is very dirty. For my source components, I daisy-chain an active balanced power conditioner with a passive power conditioner. For my 200w amp, I only use a non-current limiting passive power conditioner.

Black background. No loss of dynamics whatsoever. None. Much depends on the system synergy. It took years for me to get it right. Lots of trial & error.

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Experiment with which unit is in front of the other. It made a difference in my system.

Also, experiment by putting the analog components on one unit and the digital components on another.  Perhaps another experiment with each of the units on a different household circuit.