A Shockingly Straightforward Query


Good morning to the Community!  I am in the market for new amplifiers and have it narrowed down to the Bob Carver 350s or the Theta Prometheus.  The selected amps will be driving a pair of Martin Logan 11A speakers.   I have heard that the Carver monoblocks are a good fit for my speakers but am still impressed with the Prometheus. 


I am intentionally excluding the rest of my gear as I simply don’t want to make this question more complex than it already is.  In addition, the option to audition these amps is not feasible.   


PLEASE – no haters or flamers!


So, Carver or Theta?  Thanks and a great weekend to all!!

an10490413
I have the Carver Crismon 350 monoblocks.
mac 2600 tube pre with SF Olympica 3s.
Carvers are wonderful. Clear, smooth and detailed. 
I sold my solid state 300x2 two days after getting them. 

Ryan
Since you can't audition either one then the choice is simple: buy the one you can return no questions asked.

If neither one can be returned then the choice is even easier: keep looking.
an10490413
  Bob Carver 350s or the Theta Prometheus. The selected amps will be driving a pair of Martin Logan 11A speakers.




"MartinLogan doesn’t publish impedance, phase-angle or frequency response curves for this speaker. However, they do state that their impedance dips significantly at higher frequencies. This low impedance, (0.6 ohms at 20KHz) with a corresponding increase in phase-angle suggests that amplifiers that aren’t stable into low impedances shouldn’t be used.
MartinLogan’s online FAQs recommend an amplifiers that doubles in wattage between eight and four ohms and again increases its wattage at two ohms. This would seem to eliminate most amplifiers from consideration."

 This tells you what sort of amp to look for, and it's not tubes, if you want to extract the very best out of these speakers.
But if your happy with "a bit of a compromise" the the Carver tubes will be fine.

Cheers George  

Thanks to all!


George - I'm not happy with "a bit of compromise" at all.  Are you thinking something along the lines of Pass Labs monoblocks? 

What I did to decide on the ’best amp for the speakers I want’ was to ask what most other owners of the particular speaker used.
For my (Magnepan 3.6) speaker (back in 2010 when I asked) the answer was overwhelmingly Bryston. So lucky for me my dealer sold both Magnepan and Bryston. 
What I would suggest is doing some Google searches with your speaker name and see what others are using. You may find a consensus. or at least a few most liked brand and models of amplifiers.