Thanks tuberist. I'm glad to hear you are pleased with the PL Dialogue. I imagine the new Evo will sound like a very close relative, since there's not much different under the hood.

tablejockey - 
The speakers are Martin Logan CLX electrostatics, and the powered sub is a JL Audio Gotham. I have owned them since about 2010, and they are a great match. I don't need to use a crossover at all, I just feed the sub and CLXs direct from the Audio Research Ref. 2 which has 2 pairs of XLR outputs. That's why I don't use the Coincident line stage preamp, because it only has one pair of XLR outputs, and my best cables are all XLR. I don't use the Coincident phono stage because I like to use unshielded cable from the tonearm, and the Coincident can't handle that, being all tube. So I now use the Moon 810 LP solid state phono preamp which is on the maple block. Everything is fitted with Ayra Revopod isolation feet.
CLXs are not direct from the Ref. 2 of course - they will be powered by the PrimaLunas.
Congrats on the Evos. I just ordered a Pl Dialogue Premium Pre and a Evo 400 amp. I am upgrading to separates from a HP Integrated. I hope I don’t regret not getting an Evo pre, but I The cost savings of the previous generation  led me to the Dialogue. I went with the Evo Amp since I will likely add another one in the future for a mono set up. My understanding are the transformers are slightly improved on the new amps, so I wanted to make sure I would have a match when going monoblocks. They’ll be hear Friday.  Can’t wat. 
"Maybe I missed it but what is new and improved? Been eyeing the Dialogue HP integrated which is now the Evo 400 integrated for quite some time."

Things I could find:
- Stereo Sub/ Variable Out
- Tape Out
- Weighs 2 more pounds
- Mundorf Mcap EVO Silvergold Capacitors
- They also now spec out the headphone power, but I kind of doubt that has changed.
- 93 S/N vs previously 92
- Frequency Response is also slightly tweaked

All in all I think these should be similar enough that it’s worth jumping on the Dialogue HP while you still can. Seems like some new branding, new capacitors, and an incremental price increase. I’m sure it was probably time for a price increase, and it’s easier to position it as a new model vs pricing going up on an older model.

Wonder if the output transformer has better stability in this new one.
As the old one didn't, looking at the peaking FR and overshoot on the SW.
Can't tell till a bench test is done, or some start saying it's a touch sibilant on extended tweeters. 

https://www.stereophile.com/images/1214PLDPIfig01.jpg

https://www.stereophile.com/images/1214PLDPIfig03.jpg

Cheers George