[quote name='Musicman20' timestamp='1383489494' post='2264932']
Ratings are always a strange one. The Markbass amps don't hit the 500W claimed (the LM3) so that's something to consider.
The Markbass may APPEAR louder because the taper on the Markbass master is one that allows most of your headroom between 0 and 1/2 o'clock...and then they clip. It's a common thing for a manufacturer to do...trick you into thinking you have another 5 or 6 notches of volume left. You don't. The Genz and TC heads let you turn ALL the way up in small increments.
The Markbass LM3 DOES have a wider low end, I agree, that is the nature of that amp. It depends what you want.
Ive rehearsed and gigged both the RH amps and the Markbass LM3. The RH450 sounded tighter and more defined and easier to control with the band. More mid push, better control of the EQ, etc. It was indeed louder or at least as loud as the LM3 rated 50W more. No contest with the RH750 and LM3.
Yes, there is compression there. It's part of the sound...like it or not.
The Genz Shuttle amps are much tighter in the lows and have a lot of complex power management which as a non-engineer, I don't need to know about. That's why I pay a company to make me an amp! Genz reacted and made the Streamliner with HUGE bass, and then everyone moaned it was too much. Both work if you use the EQ.
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Lmiii vs Rh750 is an unfair fight, my Lm800 would be fairer battle with that amp