Tube amplifier upgrade suggestions welcome.


I currently have a Musical Fidelity m2si and some Tekton Lore speakers and would like to buy a power amplifier to upgrade my system.  I'd like to keep the m2si in the system as a preamp.  I'd like more clarity, bass, and dynamics in my setup.  I have up to $2K to spend and thought I'd try out a tube amp since my speakers are supposed to be very tube-friendly.

I have considered something like a Parasound A23+ or Rotel 1582 amplifier -- what are the equivalent tube amplifiers to these?  I'm in an 11' x 12' room with horrible acoustics but I've treated it with 8 GIK 244 bass traps and have added an SVS-SB1000 to fill in the low end which helped a ton.  How should I proceed from here?
128x128shawn3997

Showing 10 responses by shawn3997

Upon study, it seems I am looking for something like a First Watt amp but you don't see them for sale very often and not at my price level.  I had a Linn LK280 some years ago and that was a great amp but it ran so hot it burned the boards which is what keeps me from buying a used Klout. 

I think like 10 watts class A used or the like is what I want, used.
Oh, I won't be selling this beauty.  Just need to fix a scratch and tweak a few things.
Would you consider a used Raven Nighthawk integrated to be a better move than buying, say, the Parasound A23+ new and using my m2si as a preamp?  This is kind of where I'm at decision-wise. 

I ask this particularly as I have (supposedly) very high sensitivity speakers and right now I'd rather have fewer watts that sound better than the other way around. 

A long time ago I had a much better audio system and I know I'm missing a lot when I play recordings that I know really well.  For instance, on Holly Cole's train song I know the person doing all the funny percussion effects moves around the soundstage from right to left and front to back and you can clearly hear that on a good system. 

I miss that level of clarity.  Everything is kind of scrunched up and fuzzy right now, sound wise.  Can I fix that at least partly without spending over $2K? 

Right now I am running Roon to a Chord Mojo, the m2si, and then to the Tektons which I really like.  I really like the Mojo too, actually, so it's the m2si that seems to be the weak link.
I'd love a Raven but that's out of my budget and I don't see any used models available, unfortunately.

You are saying I'd be better off buying a tube integrated than using my m2si as a preamp and buying a tube amplifier to add to it?  I was thinking at least that would get me into separates for later upgrading and I'd not have to count out the m2si entirely.


Ok, thanks guys!  I know very little about tube amps but I have super high efficiency speakers and I think I'd like tubes -- we'll see!  :D  I do believe the smartest thing for me to do is to go used and trust what you, the experts, say is a great buy so that's what I'll do. 

I'm still leaning towards just an amplifier rather than an integrated because it will give me a better upgrade path, so I'm considering either of the two on Audiogon posted above. Thanks to @lowrider57 for the help!

I'm not sure I can afford one of these until the next round of stimulus money comes.  But maybe I can.  Not sure yet.  If I don't get one of the ones listed now can I come back and ask about other tube amps that might show up here or on other sites?  
Thanks!  What would I be looking for in the pics?  I kinda know what to look for in a solid-state amp because my old Linn LK280 had major heat issues over it's lifetime, like the traces were coming off the PC board and caps were failing.  What do I look out for in a used tube amp?
OK, so the Music Reference RM-10 sure looks like what might like and checks out so far, but is $1800 a good price, including shipping?
I just purchased the RM-10. Hopefully it’s 35 watts of pure bliss. Thank you to everyone here for your feedback and help.

It will be interesting trying out a tube amp. Many years ago I had a VK-5i preamp but I never thought it had any sort of a "tube" sound. However I did agree with one reviewer I read who said it was a bit "dark".

If asked today I could never explain to anyone what "dark" meant but it is the word I’d use looking back on the sound -- not in a bad way, just the particular coloration it gave to the music. It was clear as a bell though. I bought it via Audiogon about 25 years ago, back when Audiogon was young like me. ha!

Thanks again and I’ll post my impressions when I get the new toy. :D  Special thanks to @lowrider57 for your expertise.

Shawn
I'm getting a sporadic scratchiness from the left channel of the RM-10.  I'm guessing I need to try replacing some of the tubes to see which one is the problem?  Anyone want to give some tube replacement advice for this amp? 

The amp itself sounds wonderful but I'm breaking in some new cables now and still trying to re-EQ my room, so I won't comment totally until everything gets in place and worn in.  So far it's clear is can be and with better cables I'm getting some decent bass now.  You never know how good your speakers are until you give them a good signal though.

Thank you to everyone who commented and offered advice -- I read it all but I could only afford one amp so I went with this one.  I did get exactly what I wanted though in 30 great watts instead of 200 so-so amps.   Thanks again to everyone for your help.  I feel like I have achieved entry-level audiophile status now.  :D

Listening to Steve Gadd Band right now -- linked to this from Michael Landau's Liquid Quartet Live on Roon radio.  Both really good.

Damn, there's that scratch again!