Amp for rock/metal with high efficient speakers

I think Bigjoe said it best, I know what you're looking for, I have a pair of re-built/re-finished JBL-L200's circa 1973 and whereas with older 1960's jazz records, say Louis Armstrong with Duke Ellington, a tube amp is right, however with Robin Trower or Jeff Beck I think a good Krell, Bryston, or especially a Threshold 150 watter would do the trick.
Something about those 15" woof woofs! a certain visceral impact that smaller subs cannot emulate IMHO.

Gotvai, ten inch midrange drivers are an oxymoron. Please research this for your own sake; midrange cannot be produced effectively by this size of driver. It's a matter of physics. What you will get with such a driver is, at best, upper bass, but not true midrange.

Bigjoe - yes, I do need to let 'er rip from time and
time, and I am a bass freak. I've been leaning towards
SS because of good potential syngery with my tubed pre,
and I want speed and solid authority of the 15" woofs
at higher volumes. On the other hand, perhaps I will try a
good tube amp, just to satisfy my curiosity if nothing
else.

I am surprised to hear so many people suggesting beefy
high-powered SS. I was thinking such amps would be overkill
in my setup. Maybe not!

Stevecham - interesting point you raise about the 10"
mids, will have to ask Ty about it.

Thanks for all the responses so far!

gotvai,somthing that ive found out is that there is no such thing as overkill or having to much power,the key is to chose amps that produce lots of CLEAN undistorted power,its far easier to overdrive a speaker with a weak amp being driven to the max than it is with a powerfull amp because the powerfull amp is always loafing,i know the speakers that you are refering to from discussions ive had with another member who is also buying them & from what ive seen of them they should be one hell of a speaker for you.

stevecham is correct that a mid that size will not give you a true midrange but i would think that the designer chose a mid that large to compensate for the horn tweet & to tame the normal horn sound that so many people find hard to listen to,i wouldnt sweat it too much as the types of music you listen to are not highly dependant on having world class mids,im pretty sure that your speaker will also have the option of having either the horn tweet or a ribbon tweet.

what ever you end up choosing for amplification your gonna end up having a lot of fun with your new speakers :)

mike.

some PA systems by JBL contain 10" "mid" drivers... basically if the woofer is 18" or 15" then 10" sounds kinda small.. you want to be on-axis when listening. midrange in this respect is probably between 350 and 2200 Hz. Older two way designs of course used 10" woofers crossing over to a tweeter in the 2k range: Dynaco's, Advents, JBL's, AR's, EPI, etc.