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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 heard good things about atma-sphere.  But  ... it takes many tubes, it would add to the cost.  I am not sure how expensive are the tubes ... 
Post removed 
gte357s OP
281 posts
 
Probably a long shot.  Anyone has experience with Luxman mq-60?  It is a vintage in 1970s.  It is a push-pull in triode mode.  It originally use 50CA10, but I am going to change it to 6L6.  It outputs 30W.  I know 30W is likely not enough, but just think to try based on the price tag.
atmasphere's avatar
atmasphere
12,103 posts
 
 But  ... it takes many tubes, it would add to the cost.  I am not sure how expensive are the tubes ...
@gte357s the power tubes are about 27.00 each. In a lot of cases a full set of them for our amps is less than one tube for some SETs!


You will need some power for this speaker. It appears to have a benign impedance curve but if the sensitivity number is real, a 60 watts will be a lot better than 20! A lot depends on how conservative Harbeth is about their numbers- As I recall they are pretty conservative so the speaker is probably easier to drive than the specs suggest. 
verdantaudio's avatar
verdantaudio
1,523 posts
 
I would look for used VTLs.  I sold a pair of MB-185s last year that would have fit your budget.  They would be a brilliant pairing and give you a little more oomph which the Harbeth's like.  
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