Vortex wrote:

Based on sonic quality and reputation, I'd go with the Studer 1st
seeing as it's the MKIII. Studer is still the "Rolls Royce" of recorders.

Although the parts on the Otari might be easier to find and a little
less expensive.

You can see some response curves of the Otari MX-80 and Studer A80 MKII
on Jack Endino's web site from tests he performed:

The A800 seems to be a favorite among the Studer lovers.