Have played these for several months now. VERY impressed.
When i first got them finished i was using only one for band practice. we booked a bigger rehearsal space just before a gig and i got the chance to try both. i was totally disappointed as they sounded thin and weak, but then had a brainwave..... it turned out either one of my speaker cables, or one of my speakers in the cabs was wired opposite way round to the other, hence, when i plugged in two cabs stacked one on the other, they were producing equal and opposite sound waves whose interaction caused most of the sound to disappear. so i swapped them round.
BOOM. Easily the loudest, clearest bass rig i have ever had, making my Peavey stack sound like a gentle giant. The sound is very much full-range as described on Bills website. The full spectrum of my bass and amp came through (No marcus/victor high end as i havn't yet felt the need to add the optional tweeters. maybe if i get back in to slap at some point...). They don't sound instantly mid-rangey with heaps of punch like a 4x10 nor do they sound booming and LOOOW like a 1x15, but the beauty is that all these sounds CAN be dialled in with EQ, as the whole spectrum is there. At the moment i am playing a lot of reggae/dub/soul and i have to admit that looking at the size and weight of the Kappalite drivers, i wasn't expecting a ground shaking bottom end.... Wrong! The cabs put out ridiculous subs when you want them. i can easily get too much very low end if i roll off all my tone, boost lows on the amp and play muted flatwounds on the neck pickup of my Ovation Magnum. They sound equally good with my VM fretless jazz, responding just as well to the different EQ.
I like playing live with these because their dispersion pattern means the sound is pretty uniform across the stage. i can hear myself, and my drummer says he can clearly hear what i'm playing too. i've recently sold the rack full of amp pictured above and have gone for an Ashdown Little Giant 1000. This amp is very transparent and honest, which is a good match for the speakers, meaning i never have a problem finding the sound for the song. Also, both speakers, my bass, and my amp now fit under the boot cover in my astra so after the gig i'm not worried about having gear on view.
Weight wise, they are middle of the road. Nothing like my Peavey 1x15, but certainly not a markbass 1x10 either. i havn't got handles on them yet but thanks to the odd shape, they are quite easy to pick up once you know which way round to hold them. They fit through doors and up stairs no problem.
All in all, very impressed. i'm happy with the sound and would have spent another £500 or so had i gone for off-the-shelf cabs of this spec.
Anyone who wants to try them out is welcome to pop over if you're in Cardiff, just PM me.
Cheers,
Rich