Right, that's the great thing about this amp, it can handle two sources so you can try direct and with a pre. You can A/B two dacs, or two preamps. Pretty sure I'll be using the Zesto for a while, it's THAT good. When I first started looking for an amp I thought $3500 or $4500 would be my budget. That I think would have only been a lateral move as my Quicksilvers are pretty damn good. And of course once I committed I added options so I'm a little over budget...... just a little.
Look forward to hearing how you like it.