Backert Labs preamp, now a New Power Amp

odyssey’s are very well built no nonsense amps, hegels are excellent too, i have both -- most importantly, both have the critical solid state amp quality in my view, which is being grainless and without any noticeable self imposed ’etch’, the classic solid state nasty seen in way too many ss amps

the h20 is a very neutral sounding amp, crystal clear, fantastic low end grip and as close to straight wire with gain as you will find...  my upgraded stratos is more rolled off up high, less airy than the hegel with the best sources, and adds a touch more midbass bloom

minor note -- klaus’s odyssey’s can have a funky wiring convention with his balanced inputs, so watch out for that, and his amps can have less than ideal ergonomics (deep case, power switch on the rear panel...)

@vette5451 

Congratulations on the new preamp. And TBH when it comes to amp and preamp combination - our system matched almost to the T before I upgraded from a Parasound A21 to the Accuphase A-48S. You will be pleasantly surprised by how much the Rhumba responds to tube rolling.

I recently upgraded to an Accuphase amplifier, from the Parasound A21, and this is a huge upgrade in my system. What I am surprised was that - even after I moved from a 250 Watts Parasound to a 50 Watts Accuphase, the "clarift", "harmonics", "drive" and "sense of ease" with the Accuphase is unreal. I keep wondering how can the bass sound so strong with this lower powered amp compared to the previous amp. The Parasound is a fantastic amplifier for the money; but the Accuphase "brings out the realism" and creates "touch me" sound images. 

My Accuphase might not work with your speakers as they are lower sensitivity. But there is a used Accuphase on US Audiomart that will pair very well with your Rhumba and will provide you with a nice upgrade.

Accuphase P-4500

I you want to understand more on the Accuphase amplifiers, please go through the thread I started -  Accuphase amplifier choice.

Good luck and I hope you find and love whatever route you choose - from one Rhumba owner to another!!

Lots of experience w Odyssey - great amplifiers

There’s a good deal on a pair of Van Alstine DVA M225 monoblocks. Any thoughts on these?

I would consider a current model Bryston power amplifier. Bryston amps perform well with tube preamps. As previously mentioned I would contact Backert Labs for the technical information.