Puritan PSM156

Finally purchased my second Puritan unit, the156. I'm currently burning it in on my second system in my office.

Such an odd journey this world of audio equipment takes us on. On classical music, the 156 has immediately improved the sound top to bottom. When I play electronic music - house or ambient - it sounds muddy and veiled. Why it sounds so different based on genre of music is a mystery to me.

I'm only about 15 hours in. From my experience with the 136, I have confidence things will improve. 

Can anyone remind me what the typical burn-in period is? 100 hours or so, right? 

I honestly don't remember so much with the PSM156- it sounded pretty darn good right from the get go, and I don't recall a large downturn, or a huge upturn after the fact. The Furutech outlet I just went through on the other hand had a much greater variance in sound quality and burn in character than anything else I've had before. 

Typically it is around 200 hours for cables, and I assume you are using a new one that came with that unit right? so that would be my guess. 1 week of constant playing is 168 hours, I would say that is a good minimum. 

@bluethinker I don’t recall a radical change with the PSM156 throughout the break in process.  But that was with the Classic power cord. When I got the Ultimate power cord, it took about 200hrs to settle. Which power cord are you using?

@audphile1 - Using their classic cable that came with the unit. I'll upgrade when funds allow. 

@mclinnguy - Thanks for those estimates. Sounds about right! 

Update - I guess I'm about 30 hours in with burn in. I continue to be impressed with Puritan products. It's possible my ears have adjusted... or it's psychological... 

But my second system in my office sounds better than it ever has. I'm just hearing way more of the music. And the soundstage has increased. The Luxman 590axii has never sounded so good before. 

This is my second Puritan product. Continue to be impressed with the value of these Puritan products. 

After reading so many positive reviews and experiences, I finally bought a PSM156 myself (with upgrade to Classic plus power cord) to replace an Audio Quest Niagara 1200. My set already sounded quite nice, but probably caused by mains fluctuations and external influences from power supplies and electronic devices in the area, it was a lot less pleasant at certain times. It just wasn't consistent in sound quality. The Puritan almost completely solved that problem right out of the box. But moreover, even if it wasn't properly burned in, it improved the SQ in several aspects already. 

I experience a (slightly?) deeper sound stage, it is less cluttered, less chaotic, especially with orchestral music. In addition, I hear a deeper and more tightly defined bass and there is more spaciousness: the acoustics of the space around the instruments are displayed better and more beautifully. Any sharp edges in the high tones of some instruments have also virtually disappeared. All in all, it has undeniably brought more calm and tranquility to the music.
As you can imagine, I am already very happy with it!

By the way, my set consists of a Cambridge Audio CXN V2 streamer, a Matrix Audio X-Sabre Pro dac, a (vintage) Marantz CD 17 KI Signature SACD player, a Cayin A88T MK2 tube amplifier and finally a set of Martin Logan's Ethos hybrid electrostatic speakers (with active subs).