If you think they are identical you may be confused; - the OZ set doesn't have tweakable crossover points like the Germaniums, and the Germanium tweeter attenuation is superior; the fourth level of attenuation not only attenuates -6db, but also includes a gradual -2db slope going from 2.5khz up to 20khz to help round off the ultra high freq's for tweeter mounting very close to the listeners ear. The Germanium crossover's allow you to adjust both the woofer low-pass frequency AND the tweeter high-pass frequency independently giving you the ability to underlap or overlap the tweets...and of course you can always simply swap a single wire location to change phase. Personally, I got nasty peaks around 2khz with the tweets and woofers both set to 2.2khz, so adjusted up to 2.6khz and eliminated the problem...which allowed me to attenuate the tweets less giving a fuller sound overall. I might've been able to accomplish this with EQ settings, but not really in the same way and i'd be using several PEQ bands on my setup just for that purpose. Some of the things the Germanium x-over offer are simply not possible without going fully active with the OZ set. The question, of course, comes back to the buyer and weather or not they find these features beneficial. Unfortunately, if you go with the OZ's and discover those features would be useful afterall, you're stuck without them //content.invisioncic.com/y282845/emoticons/wink.gif.608e3ea05f1a9f98611af0861652f8fb.gif