I guess I'm the newest member of the Genz Benz Streamliner 600 club.
So far (got it today) I've only had the opportunity to use it as a pre-amp to power a QSC K10, which I used as bass amp before (I'm really a guitarist). I'll have to test the "face-melt" potential later.
My Gear
I'm playing a Hagstrom HB4 and a Schecter Hellcat VI with bunch of guitar gadgets (dirt, boost, modulation, delay, reverb) and I'll eventually get to use the STR-600 with my SWR Workingman's 410 at 8 ohms, and MAYBE a Carvin PB115 at 8 ohms.
My Style
I play postpunk stuff. I love chorus on bass (go ahead, mock me!) and a little overdrive and fuzz too, as long as I don't lose low end (I'm thinking an MXR Bass Fuzz Deluxe would do a better job than my lovely Wren and Cuff Box of War). I don't slap or play funk. I like the bass lines in Tones on Tail, and maybe a little Peter Hookish stuff with the Hellcat VI.
Sonic Goals
I want to cut-through and provide plenty of low-end without enshrouding my fellow musicians in low frequencies: to provide the proper place in the mix in a variety of venues.
I figure that 375/600 watts is more than enough to cover venues from the Troubadour to Satellite (Hollywood represent)--surely I'm mistaken.
Cabs
All the cabinet suggestions scare me. I've read lots about not mixing speaker sizes, driver sizes, and a bunch of other stuff I don't understand. I weigh 120 pounds, so I'm thinking about selling the SWR 410 (100 pounds) for some neos. "Looks" are more important for my band than for me, and they would prefer I play Ampeg. I think 2 or 3 210s stacked vertically looks rather sexy, and they would have that Grateful Dead tall-stack appeal, but you and I (you know who you are), we're poor. We've read that Avatar 210s neos are great, but they are less efficient than GB Neox210s. And yet, the idea of a 6x8 cab kind of excites me, but I'm dumb when it comes to cabs, and the pairing of cabs with cabs, and cabs with amps. I'm also weary of "whatever sounds good to you" bro science, especially since what sounds good to when I'm standing in front of the amp is not what would sound good to me standing amongst a room full of people in a crowded venue. And then back to that issue of efficiency: does efficiency necessarily sound better? Or to put it another way, might inefficiency (on some level) help break through? Might an inefficient 810 cab perform better than an efficient 210 cab? I'm dangerously toeing the line between acoustics and subjectivity, but I suppose we all do that.
I feel like what would work best for me is one 410 cab and one 210 cab. That way I can have 610s (which I think would be sufficient) with a 210 cab for rehearsals: all neo, if possible (remember, I weight 120 pounds!).
If both are rated at 8 ohms, does that mean I can't push the volume, since I would assume that maybe too much power would be fed to the 210?
(It depends on the power-handling of the 210, of course!)
So we're back to brands and deals: suggestions for excellent neodymium speaker cabs at piss-poor prices for STR-600s?
Danyo
I highly recommend a Genz NeoX 212T with a Streamliner. It is a 4 ohm cab that is rated at 600 watts and only weighs in at just over 50lbs. I use one with my Streamliner 900 and it is a great match. There is a newer version of this cab also that would also be a great match. You can find them on the used market for around 450 or so. There are other cabs that people have reported great success with but the NeoX is the only one I have experience with. Prior to this I was using a Hartke HyDrive 410. It is an 8ohm Cab with a 1000 watt rating. Though I liked it ok it just didn't seem to give me what I was looking for with the Streamliner. It is reasonably light for a 410 at 72lbs and they can be had used for under 400.00.
Good Luck and welcome aboard!