recommendation for stereo tube amplifier for Marten Bird 2 speakers other than EAR....

Vitus
Gryphon
Personally I use Luxman L-590AXII on the Marten Duke 2.

The review of these speak is really excellent. What other equipment do you own? Given their description,  I can’t imagine Audio Research Reference 160 s or m would not sound fantastic. My speakers have 4ohm impedance and are a great match.

Not certain if he still makes it, but Don Sachs offered a custom KT88 based PP stereo power amp that may be of interest.

Think it was around $4K, so half the price of the EAR.

DeKay

Jadis would be my first choice but not an inexpensive solution.  The Rogue Stereo 100 at a modest price would be excellent.  You could also look at VTL and Angstrom.  Both are brilliant sounding.  

At a show the Marten Jango’s driven by all Zesto/Cardas and their Eros 150W mono’s. From the few I’ve listend to Maten’s are in the real deal bunch IMO.

My history: two Marantz 8B’s, MFA D75 and the exceptionally cool running Carver Tube 180’s drive my 87dB, 3.6 ohm three ways since there introduction just fine from the 4 ohm tap with no problems. They also have a 2 ohm tap.

Lots to chose from, have fun.