As suggested by Jimmy, I'd be very tempted to use the MacIntosh, though if that's sacred, there are many good options. Before I go on, what a really beautiful bass - great that it's gone to somebody that will treasure it. Right, back to options. I actually use my Series II through a MacIntosh set-up (in part, at least). I have an MB50 streamer that has a really nice pre - so, it's bass into the MacIntosh and then into a pair of powered ATC monitors. Obviously, one needs to keep the volume at a reasonable level, though dynamics and range capture are exemplary. If the Mac is definitely a no go (and much depends on your speakers), then AER is worth some investigation. They're German-built so not cheap in the US but the company's Amp One is a superb, small combo and one that will capture the nuances of a Series bass. I haven't had the pleasure of using Phil Jones gear but hear nothing but good things. I appreciate that the size of the Acoustic rig may be prohibitive, but if it sounds good... Also, I've used quite a bit of Bergantino gear - some of the powered cabs (if you can find one), might make a decent, reasonably compact practice rig. I'll admit that with Berg, I'm a bigger fan of the cabs than the amps.