System advice

@soix PA is short form of power amplifier, I saw it in Ayon Audio so I thought it's in common use. Sorry for that!

Octave RE 320 provides, based on the documentation: "maximum output power of approx. 2 x 130 W with two tubes in push-pull mode. The performance bandwidth of the RE 320 extends from 5 Hz to 85 kHz. The pulse power can even reach over 200 watts. ". 130 WPC on pentode mode, 75WPC on triode mode. I guess you are concerned about triode mode?

I suppose more triode power will require much more expensive monoblocks.

Yeah the way they listed the specs was confusing as they listed output as “low” and “high” that I didn’t realize was pentode or triode.  I’d have no reservations in pentode, and it might even work in triode for most music/situations. 

Would you consider it now yourself?

I'm really wondering how the sound characteristics would change after upgrading from Arcam to Octave RE 320. I'm sure it would be better because it has more power and so on, but I'm not sure if it will provide this tube magic that I count on a little. A lot of people say Octave works like a solid state. As long as it refers to dynamics and bass - great, but I still hope for some tube magic in it.

I think the Octave has plenty of tube magic, but the only question is if it has enough warmth as it tends to sound more neutral.  The Octave won’t sound thin or sterile by any means, but If you’re looking for an amp to add warmth it may not be your best option.  But that’s a personal taste thing.  

Yeah, thanks. I read so many positive comments about Octave that it's really hard to believe I woudn't like it. As there is a real issue with finding Lampizator with preamp, I started toying with the idea of buying Lampizator DAC, Octave RE 320 and.. HP500/700 for pre. Am I crazy? :-)