Good Pre Amp W/Remote for Marsh A400s Amp??

Hi all,

GuidoCorona...The specs are 56k OHM for Unbalanced and
4K OHMS for Balanced inputs. I love tube smoothness
to be sure, but also love a firm grip on the bass. That's
kinda what I already love about the Marsh amp.
Music wise, just about anything except Country & Rap.
Mostly Jazz & various Rock.

Guido,

Thanks! So what should I look for in a match?
Any problems if I just run unbalanced? Or should
I just hold out for a Marsh pre to be safe either
way?

Bob