Any comparisons of the puma 500 to a markbass F500, shuttlemax 9.2 or a thunderfunk 750A. Will have all three of these for a bit to test and need to know if the puma 500 is going to be next. Already tempted.
Owned them all (actually, my Thunderfunk was the 550b, but had the 750a at the house quite a bit when in Detroit).
Puma500 and Markbass F500 are quite similar to my ear (I again served as a field tester for the Puma500 prototype), and the only reason I don't own one is the similarity with my F500, which would make it redundant. Doesn't, of course, sound EXACTLY alike (Puma500 sounds a bit clearer and has a bit less compression when pushed), but with very slight EQ, VERY similar to me. I prefered the feature set on the F500.
Shuttle Max 9.2.... not surprisingly a bit louder in an absolute sense, a LOT brighter up top (if you remember, I had a clip up, EQing the FET channel to sound virtually identical to the F500 set flat a while back... got there pretty well. GREAT EQ, and you can get pretty close to either amp with the Max 9.2 (takes a lot of smoothing of the upper mids and sculpting of the low end with the FET channel). Lots more sounds in there also. GREAT head.
Thunderfunk 750a.... a lot of people get a bit confused with the output of the 750b. It is 630 watts into 4ohms, so it is in the same 'max volume' as these other heads (and a bit less than the Max 9.2). The 750b is a bit of the mirror image of the Max 9.2 set neutral out of the box... warm, organic and relaxed up top, lots of low mid push... another great head. I found that I could get close enough to the 750a with my F500 that the extra size, price and slight additional overall volume was not worth it for me. However, it is a beautiful piece of handmade iron, and short of needing a lot of upper treble sizzle and super bright upper midrange, it can do anything these other heads can. It does have a more 'creamy' sort of warm mid midrange than the others, which cab be very cool sounding for some tone goals. The new 800 is optimized (from what I understand) to run nicely at 2ohms, which none of these other heads do (runs a bit cooler at 2ohms than the 750a).
Obviously, since I owned and gigged all these heads, I could be quite happy with any of them, and it would be surprising if anyone 'loved one of these and hated the others'. Since I never hit the limits of my F500 with the cabs I used, and ended up EQing the other heads to sound close to the F500 set neutral (which is kind of the 'tone in my head'), they all went and the F500 stayed.
IMO and a lot of IME on this one! Look forward to hearing what you think about these amps. All 'top of the line' IMO.
Edit: Since the F500 is no longer in production, the Puma500 or 900 (depending on cabs and power needs) is my 'go to recommendation' for those looking for a powerful, small, high quality amp this is relatively 'neutral and transparent' but still warm/not sterile.