ST 70 best sounding version?

https://www.prosoundnetwork.com/gear-and-technology/dynaco-ships-st-70-series-3-tube-amplifier

Interesting reading about the RM-10.  Does anyone know what the differences were before the RM-10 and the RM-10 MKII?

FYI: Bob Latino sells his wares on http://www.tubes4hifi.com/, along with Roy Mottram who sells pre-amp kits and customizations to original Dynaco 70s.

Regarding recitfer tube vs SS, Bob’s amp can run either without issue. In addition, there are a lot more upgrades to the amp beyond the power supply (output transformers, better caps, upgraded chokes, high precision resistors, driver circuit changes, a fully modern tube compliment, upgraded chassis, to name but a few). So IMHO Bob’s amps are really just modeled after the Dynaco ST70--his VTA 120 is a fully modern amp that is much closer to the Rouge Magnum and other modern tube amps that can run KT88s and KT120s (and now even includes an auto-bias board option.....)

Full disclosure--I own Bob’s VTA 120--super product with super support (something you might want to consider). Great supporting community as well.

 "....just not a 5AR4."  Noted :)