I've been using bass amps for decades and the poor old bass player has always had the heaviest and bulkiest setup in the band!
Not any more!
This class D (switch mode) amp is light weight, mega powerful, and looks absolutely pristine.
Oh dear! - it's got a fan! - I didn't realise before it arrived! - but it is VERY quiet - truly madly deeply honestly!
There is a simple trade off. With no fan (and I was seriously considering one) then if it overheats it has to shut down! - Silence! - in the middle of a gig! - do you really want to risk that ?
The controls are simple and straightforward - and I am used to a graphic EQ and a parametric on the same amp! However, these controls are more than adequate. With everything set at 12-o-clock (and this is a very good test) the amp sounds clean and powerful. I suppose I'd better add NOT the contour control - set this to minimum. I don't like either of the contours, but that is entirely personal preference.
What's with the 2.67 Ohm setting ? Well if you do the maths, that's 3x 8 Ohm speakers or cabinets together.
I was originally intending to use an 8 Ohm cabinet, but couldn't get the right speakers at the right impedance. No 16's with the right frequency response, no 4's in stock, or not at the power rating I really wanted.
Eventually I opted for a pair of 8 Ohm 500 Watt Eminence Kappa Pro-10A. That means I could theoretically hit them with 800 Watts into their combined 4 Ohms. All theoretically within their limits. There is more than enough EQ available with the controls on the front panel to get just about any sound and I'm not one for turning everything up to "Number eleven".
Not really given much time to the Drive channel.
The 2.67 Ohm setting on the back means that I can add one more 8 Ohm cabinet - A 15 inch LF driver! - without any instability. The sound on 2x 10 inch Eminence is perfectly ok to me, with DI to the main desk.