The different compression drivers are for different design needs, but that doesn't really mean one design is "better" simply based off the CD being used. Most designers would pick the one they need for power handling or a certain crossover point.
The DNA-205 is like the B&C DE10. The DNA-360 is like the B&C DE250. Some would say the Mylar diaphragm (205 or DE10) will sound smoother than a polyimide (360 of DE250). But those smaller compression drivers can't really be crossed over low enough for many powerful 12" or larger woofers. So there's a need to step up to the larger compression drivers, and most have polyimide or titanium diaphragms.
As mentioned before, they're all good designs. I just broke them into 3 categories based on price differences. And the price differences are completely due to the cost of the speaker parts because I'm not adding gobs of profit for certain designs. I simply add up the price of the parts and post it. Most speaker companies list their different models based on price, so I'm not sure how else to do it.
As for descriptions: if anyone wants to help make the website better, or write better descriptions, that would be great. When I first started helping with all of this, I was hoping to just do the grunt work of pulling all of it together and package things up. As most can see, I'm no website programmer, photographer, or product reviewer. I hoped someone in the DIY community would help with those things while I did the other stuff. I've packaged up hundreds....and hundreds.....and hundreds of packages, but people forget to write reviews. Reviews help better explain products and would help me write better descriptions.
I have a brand new website sitting here ready to go, but pretty much completely empty of content right now.
One AVS forum member even made up some new logos for the site. I had photo instructions for assembling boxes made up, etc. The new site has tabs on each product page to allow for videos, instruction uploads, graphs and all that neat stuff. But I'm not a website expert, so there's not much I can do with it. My spare time is better spent packaging right now. Edited by Erich H - 7/31/13 at 9:54pm