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What tube amp for Harbeth 40.1

I am looking for a tube amp for Harbeth 40.1.  I know many suggest SS amp such as Accuphase, Luxman, Hegel, McIntosh ... etc for Harbeth, but I decided to keep it with tube.  I also don’t think I need a lot of power.  I currently have a 8W custom built 300B and had a 18W Almarro 318B, and to me, they sound fine.  However, I think more power will help, and I never know what I missed until I try it out.  Having said that, I don’t think I need crazy power.  Anything 30-80W is good enough for me.  I am 3m away from the speakers, listen to Jazz at avg 83dB.

i have the following short list:
1) PrimaLuna Evo 400 integrated
2) Leben CS600X 
3) Linear Tube Audio Z40

Which one do people like with Harbeth?  Any other suggestion?

Among all qualities, I value holographic presentation the most.  I really like the feeling as if the singer is floating in front of me, if you know what I mean.  And my current 300B do pretty well in this regards, and I read this is what SET amps are good at.  Will I be disappointed with the above?
Thanks.
gte357s
gte357s OP
281 posts
 
I also don’t think the power makes it flat or dull.  It is more depending on the circuit.  I have two 300B amp, one is 11W and one is 8W.  Tested on my Spatial Audio X5, the 8W one sounds more dynamic. 
atmasphere's avatar
atmasphere
11,800 posts
 
Tested on my Spatial Audio X5, the 8W one sounds more dynamic.
Naturally- SETs make distortion in such a way that the distortion sounds like 'dynamics' to our ears. But I get your point- we have a lot of Harbeth owners as customers and somehow they seem to work quite well together.
saxman14m
1 posts
 
Try out the Vinni Rossi Lio
Excellent amp that will solve your problem

bbenzaquen6343
13 posts
 
I have a PrimaLuna Evo 400 Integrated for the past three months. It is an incredible amp. 38w Triode and 70w Ultralinear. And if you need more power, you can roll tubes (KT88, KT120 and KT150) with the auto bias, no calibration required. I listen to 50's and 60's jazz and it is extremely sweet, detailed and creates a very special atmosphere.
I'm upgrading my whole system to Audionote (amp, speakers, dac, etc) so the amp is available if you are interested.
jayctoy's avatar
jayctoy
4,043 posts
 
If those Harbeth need power , Tsakadiris apollon mono willl work beautifully, they run my hungry power Andra speakers effortlessly,they are 150 watt. Few powerful amps I heard has the musical virtue like the Apollon.they are only 4K.
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