[quote name='Paul S' timestamp='1444992705' post='2887916']
I've recently gone back to a Trace head - RAH-300-12 SMX - after some years of using Class Ds. Tone is very subjective - some people hate them, some love them! But, like you, I find that pushing in the pre-shape does everything I want a bass amp to do.
The amp I have kept as back up (right up until I can get another Trace head that is similar) is a TC Electronic RH750. To my ears it sounds the closest to the Trace sound of the amps I have tried (GenzBenz Streamliner, Markbass Tube 800) and also it is nearly as loud. Doesn't make me smile in the same way, though.
I'd be interested to try an Orange Terror Bass as a direct comparison but haven't got one yet.
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Paul, just had a look at the TC Electronic stuff - very interesting, especially the features: 3-button memory, on-board tuner etc. Trouble is that 750 Watts is too much for my cabs (2 x 10 at 250W and 1 x 15 at 300W, both 8ohm). The RH450 might be better for me - any idea whether it sounds generically the same as its bigger brother?