Where to now.?

Keep the KR P135. You like it! That's all that counts! 

Where to now?  Take delivery of your new amps and listen to them for a couple of months. Then think about what you want to do, if anything. One step at a time. 

@chayro +1

I'd would need to know your complete system before I would recommend any path for improvement. 

I would think that the KR Audio amps and preamps would be a perfect match for one another. 

@chayro +2.

Charles

@chayro +3

I would like to keep both but the reality is I may not be able to. 
of course. The WAVAC is reputedly one of the best out there. So I am of the thought that it would be at least as good as the p135. And could and should be superior. Is there no one out there that might ha tried them both. 

LOL Plus 4 chayro

Congratulations on you purchase, tne KR Kronzilla monos sound like top level amps. I have to agree with @chayro, get a good 500 or more hours an them with your current system before considering your next step. 1,000 hours better. Know the ins and outs intimately before thinking on your next step.  
 

Enjoy your upgrade!

Thank you all. I will do as advised here. I will revert back in a little while. 👍🏼

@prehig

It is wise to be patient and methodical in this scenario. Listen and evaluate how the KR amplifiers and preamplifier work together as a pairing. Your P135 preamplifier is very highly thought of and considered to be very good sounding. Using the DHT 45 tubes is an excellent approach and by many accounts, well implemented.

With regard for the Wavac PRT1 preamplifier, is your supposition based upon it’s much more expensive and is better by default? It may or may not be better sounding. Granted it does possess an undeniable intriguing mystique and aesthetic beauty. It’s a circuit based on the 12Au7 tubes and I suspect exceptionally well implemented and has a separate external power supply.

I do not doubt it sounds terrific. But is it necessarily better? Obviously, only a direct component to component comparison will determine that. But I would not underestimate what you currently have. The KR designer is very talented and experienced.

Best wishes

Charles

Thanks Charles. You are spot on. I do rate the p135. I have heard better but it wasn’t with kr amps. Yes. I’m thinking that WAVAC is considerably more to buy but also has had incredible reviews.  My thoughts are P135 must be good enough otherwise KR would have made another model. 
thank for you advice. 
best. 

@prehig 

👍

Let us know how the KR Audio siblings sound paired together.

Charles

Purely out of curiosity, what speakers are you using with those beautiful amps?

Horns symphony 13