Thanks, how does the OB compare?
The Genesis were such an under rated speaker.
Two totally different beasts. They both load the room and interact with it differently. My brothers and I were just listening to them last night over at my ex'es place, being powered by an older Yamaha HT receiver and supplemented by my old pair of Polk Audio PSW505 subs.
The Genesis' have crisper highs while still remaining silky smooth thanks to those wonderful phenolic inverted tweeters and those super fancy and expensive crossovers I put in them. The OB's surprisingly enough have about the same crisp, silky smooth treble, only not as pronounced, and they do roll off just a touch early. For 12" drivers, they do extend shockingly high.
The midrange on both are excellent. They both produce a nice, wide and open sound stage, but the OB's do it in a larger, more true to life scale. Also, with the OB's, the center image stays perfectly locked in the center, one of the benefits of having no crossovers. IOW, no phase shifts.
Mid-bass and bass... Both very tight, tuneful, detailed and natural, but the Genesis' have more "bass" because of a couple of things, they LOAD the room with it, and because I'm not yet finished with my OB's. Right now, I'm only running a single 12" woofer on smaller than should be baffles. I have SIX more 12" drivers sitting (a total of four woofers per channel), waiting to be added to the setup, all on larger, taller OB's.
The Genesis' are fairly efficient, requiring little power to get loud. I think I've seen max of about 30 watts and they were extremely loud with that amount of power. The OB's however, are REALLY efficient. Even with a single 12" woofer doing all bass duties from 200 Hz on down and with their fair share of EQ down low, it gets terribly loud in here with max power of about 15 watts going into them. The Audio Nirvana Super 12's on the other hand, to keep up with the woofers, maybe ever see an absolute max of 1 watt! Most of the time on really loud passages, they're seeing swings of about 0.3 - 0.5 watts!
Funny thing is, these 12" woofers are rated at 94 dB @ 150 Hz at 1w/1m. When I finish the OB's and have four of these woofers running per channel, their efficiency is going to be up around 103 dB @ 1w/1m! The Audio NIrvana's are rated at 96 - 97 dB @ 1w/1m. The amps just loaf along the entire time.
Just a fun note. The AN fullrange drivers receive a full range signal. Only the woofers are crossed over at 200 Hz via the dbx Driverack Venu 360, and the OB's are vertically bi-amped.