Looking for an amp that punches way about its weight and I can grow with

Hi, Justin (OP) and all, 

Subject to... your system, ears, preferences, etc. 

I have had great results with Odyssey (Kismet mono's in the Khartago cases). 

I don't have Martin-logans but have run the Kismets through my various systems that include B&W, KEF. Gallo and Quad ESL speakers, variously and comparatively driven by Levinson monos, Peachtree and Pathos integrateds, Kenwood LO-5 MII monoblocks (total sleepers, still good to this day, also very fast, well damped, etc.). 

The Odysseys are perfectly stable into low impedance loads, very fast (slew rate?), good control (damping without overcontrol), etc., = reliably great sound.

Another benefit of working with Klaus & Co. at Odyssey is that you can pick & choose / customize many aspects as well as upgrade later. 

A good example of which is setting the bias (Class A vs A/B). From the website: 
"All amplifiers: Custom bias for your system prior to purchase. The customer has to provide system information to check feasibility. Free of charge." Nice. Might make sense for your Martin logans. 

It is a smaller family owned business and the ability to speak with the CEO/designer, customize your amps, etc. means that it can take a bit longer than walking into a dealer (support your local dealer, too!) and taking it home that day. Well worth the extra time, "patience is a virtue", at least sometimes.

Lots of great gear out there. Enjoy the hunt... 

Ken

If you can find a better value than an odyssey kismet... I’d be shocked and would love to hear it. Extraordinary sounds at a ordinary price.  And customer service to match any in the industry. 

If you can wait a couple of months and flex your budget to $5100, get the new Atma-Sphere Class D mono blocks.

Hi
Don Sachs here.  Someone posted above that they have my version of the Bob Latino kit.  Ummmmmmmm, no.   There is not really anything in common between the Latino kits and my amp.  The kits are great bang for the buck.  About all they have in common with mine is that they are both KT88 push pull amps.  Mine is built cost no object.  It has epoxy potted toroid power and output transformers, fully independent REGULATED high voltage supplies for each channel, VCap ODAM coupling caps, premium wire and resistors, fully auto biasing, etc....   The Latino kits are great value and great amps, but mine really has nothing in common.  Well maybe his also has an octal front end with long-tailed pair, but mine has a CCS tail.  I mean really, they are completely different amps and priced accordingly.  I know which one I would prefer to listen to:)   

Don your gear is beautiful!   It is a tiny bit out of my price range right now but I do enjoy looking at your gear.