Well, it's here. I'm in day 3 or 4 of ownership of the new rig, and so far I'm digging it like an old soul record! Obervations - - These Avatar cabinets are great. Why would anyone pay double or more for name brand cabinets when these are available? - I got a 1x12" instead of a 1x15" as my "second" cab. Glad I did. It seems to have enough bass to round out the low end from the 210 Neo, but it's lighter and probably a little punchier. Actually I think it would sound great as a single cab with an electric upright. I need to get one of those... - The MK500 head is very strong, and pretty simple to use. The tone is great, the EQ is responsive, and it's damn powerful. - I notice that I have to turn the "input" knob up to at least 3:00 to get noticeable movement on the input strength meter. Both of my basses are active, so I would be tempted to think that the output signal from the bass would be strong, not weak. Has anyone else noticed this with Ashdowns? - I like the Harmonic Emphasis feature, although only used judiciously. It has the effect of adding some high-end shimmer to the sound. It's definitely more noticeable when playing thumb slap than with finger style. I would almost describe it as an extremely, extremely subtle chorus sound. In any case, it makes my TRB5 sound a little more hi-fi than it actually is. I do wish that it were foot-switchable, however. I can't wait to gig with this setup. You may notice that there's some space available in my rack. I'm going to add a RackRider and a Really Nice Compressor soon, and that should fill it up nicely. Here it is - comments welcome!