I am curious how the unit performs after your upgrades? I have the same unit and may consider doing the same things you have done. Appreciate your thoughts ! Thanks Dave
Hi Dave.
For these upgrades I had two specific goals. #1 - Eliminate DC power contamination, and #2 - Continue the product evolution shown in the PURE POWER ONE 5.0SE and TCHAIK 6.
In my home the PPONE would intermittently "rattle" due to DC power contamination. This was not an audible buzz through the speakers, rather it was a physical rattle/buzz from inside the PPONE. The addition of the DC trap filter has completely silenced this rattle.

For the other upgrades I can't comment on any audible differences. My system sounds fantastic but it sounded fantastic before the upgrades.
I used the following info from Silver Circle to plan my upgrades. -
https://www.lauferteknik.com/product-descriptions-silver-circle-audio
PURE POWER ONE 5.0SE
I had been wondering how to improve upon the performance of the Pure Power One 5.0 when I received a call from Scot Markwell, manager of Elite AV Distribution, the importer of Furutech products.
He mentioned that Furutech was releasing a new receptacle, the GT-XD series, and he felt they were exceptional. Skip ahead: I tried them, and they were BEYOND exceptional. They are, bar none, the finest receptacles made anywhere. Exceptional receptacles, if you will.
That led to the question: offer the 5.0with a choice of receptacles as an upgrade, or as a wholly new product? The answer lay in several other improvements that we decided to incorporate. We were introduced to HiFi Tuning Fuses, imported into the US by The Cable Company in New Hope, PA. They are far from inexpensive, but they improve the sound immensely. The new unit would use the HiFi Tuning Fuses Supremes!
Then we got to thinking about what else could be upgraded to further improve the sound of the 5.0.
The 10 AWG silver-plated wire we used inside the 5.0s is a fabulous conductor that accurately relays the information fed into and through it. The blocking points or points of restricted power transfer were at the points where silver-plated wire met tin-plated ring terminals or stainless steel jumpers in terminal blocks. We turned to our metal fabricator and had them make up high quality jumpers for the terminal blocks. The jumpers and copper ring terminals went to a metal coatings company here in Houston, for a double-thickness plating of gold.
The Pure Power One 5.0 with all the upgrades mentioned has been designated the "SE," or special edition. And it is indeed, special. Most who have bought it say that it has brought the "giggle factor" back to listening sessions. "It makes the music more organic."
The specs are pretty much the same for the "SE" as the Pure Power One 5.0. The receptacles, gold terminal block jumpers, gold-plated ring terminals, HiFi Tuning Fuses are the internal changes. The front panel of the "SE" is gold anodized aluminum. The dimensions are the same as the Pure Power One 5.0.

TCHAIK 6
Just as the new Furutech GT-XD receptacles helped spawn the Pure Power One5.0SE, the development of Magnetic Innovations' new Wave Stabilizers have helped spawn our new TCHAIK 6. Pyotr Ilyich Tchaikovsky wrote 6 symphonies, the sixth of which was also named the "Pathetique."
The third movement of this symphony encompasses all that is great in music: delicate strings and woodwinds, flowing sweeping strings, powerful low brass and percussion. It is the only time I have heard and seen an audience almost burst into cheers at the conclusion of a single movement that was not the finale.
The Wave Stabilizers were developed by Rick Schultz of Magnetic Innovations.
This new product includes the following:
Five (5) Wave Stabilizer modules; 2 on the input (hot and neutral), 2 on the output; 1 on the ground

Matt