Eminence Gamma 15

300 w rms 15 inch speaker, not too heavy.
Very soft suspension, big magnet, you have all specs on the site.
Bought it to replace a blown 15incher in a bass 115 cab from hughes and kettner(the 410 top also rates at 300 w rms).
Now in use in a 115 open back guitar combo (Peavey usa transtube bandit, just changed the baffleboard).

First this gamma reacts very good to small amounts of volume, must be the soft suspension. It is a fast speaker.
Its treble response is way higher than expected, the soft suspension again?
Its bass response is a bit muddy, not that well controlled. Surely the soft suspension...
The whole sounds very smooth, polished, not ridiculous at all as stand-alone speaker.

In the 115-410 typical bass setup I would choose a low freq special version of a speaker (with no treble above 2khz) because now I have too much 3-5 khz freq amounts. Not ideal, or with a low-pass filter only (or bi-amp if you can afford it).

In my guitar combo it sounds gorgeous, especially with a wild strat hooked. Polished cleans (but the amp is like that, no wonder they are in every Nashville club) and thick&raunchy overdrive. The strat compliments this very well, I could see problems with a mahogany-based guitar.
After a while I had the idea to use a Korg AX3A(coustic) processor as ambience-master volume device and its enhancer improved the sound further(cleans up the midrange).
Difficult to describe the swirl my combo delivers, nothing to do with what us guitarists are used to. I am hooked period.

A soft suspension needs a protective cover, and I could see damp surroundings damage it more than your average 15 incher.
Time will tell.

Good stand-alone speaker, an alternative to specific guitar speakers.
Price asked for is ri-di-cu-lous.