Excellent news, thanks ... this Amp is simply STUNNING! I have never heard such complex lower and mid-mids with such weight without things getting too heavy and adversely effecting the upper mids and highs. I just run everything straight up and get lost in the sound. Want more throaty Mid sounds ... back off the Contour control**. And the Bright switch... just the right kind of annoying alone that in a dense mix dulls down to be just perfect.
I have ALL kinds of Pre control in my Millennia, and the Hand Box 400 just cuts to the chase and eliminates the need. I run the Millennia flat, fed by the HB-400 DI (post) right now, and that feeds a class-D self-powered cab. Cool to change the Mil input path structure for additional tubes or pure solid state or a mix of the two ...but thats it. NO additional EQ. Wow!
I have to say, running the R-400 direct into a passive cab, and then running the HB DI thru the Millennia and into the same cab via a high-end 1200 watt class-D amp, the R-400 by itself with its class A/B power section wins for me by a wide margin for a given volume, at least against this particular 1200 watt amp (although the 1200 can ultimately get louder of course). More tone, beef, and weighty aggression. My Marcus never sounded so good. Don't mean to bring up the age old class D vs class A/B again, but there you have it IMO.
A really, really special piece.
**Favorite Setting: Bass and Treble at noon, Bright switch 'ON', Contour in just a bit, nudged up to around 7
*** New Favorite setting (thru my Berg 210 Ref anyway) Bright Switch 'On', Contour 'Off', Bass Control 1 O'Clock. Treble Flat (+1 Live)