"So 2 pairs of output transistors"
This is OK for "Upgrade" or version MKII
Since this amp is heavily based on REVOX A 740 amplifier (year 1983 !)
and original ( REVOX A 740 ) had 3 pairs output transistors , I think
new version of DartZeel MK III amplifier will be with 3 pairs output...
"warmer, more liquid " ???
711 based on new SMPS power supply will bring just more headaches
to the owners
So far found seven amps 710 refurbished after just 2-3 years in work ?
"Amazing build quality really", sealed modules, black painted PCB like made in China,
to HIDE masterwork ...
And...