1) These are all Stereo Mix kits (not discrete mics) but with discrete channels for mixing, correct?
These are stereo kit pieces which do allow individual control of the volume of each kit piece - so you can adjust snare, kick, each tom, hats, crashes, rides etc. But you can't adjust the individual discrete mics of each kit piece. We call those "Multitrack" in Drum Masters world and "Multichannel" in the OWD world. However, there is one extra thing you can do in THIS group buy which is mix in the convolution room ambience from the various studios Drum Masters and OWD are recorded in. This allows you to match up ambiences between kits and do other cool things. So it is semi-multitrack at the end of the day. Just not as deep but also not as intensive on the computer, ram and HD.
2) Can all the pieces from all the kits be mixed and matched with each other (i.e. OWD kit 10 snare with a DM kick, etc.)?
Yes! That's the idea. When I say one of the bonuses may be HYBRID KITS that is what I mean. Kits that combine the different kit pieces between them. Of course half the fun is doing that yourself... until the cows come home. The combinations you can make between 27 kits is HUGE.
3) Are the OWD DL kits an assortment (you don't get all the treatments for each kit) or do you get all 3 treatments for each DL kit in the package?
If you mean "mixes" (ie. Dry, Medium and Ambient) then you only get what is specified. Most of the kits you get one mix of except Kit 4 and Kit 10 where you get two mixes to get an idea of what the full DL edition (that has all three mixes per kit) is like... or you get an idea of what the Silver/Gold/Platinum Editions are like because they have 6 mixes (and you can make your own mixes). By mixes I do mean in this case the blending of the discrete mics (such as directs, overheads, various room positions etc.)
Here's a list of the kits and the mixes from OWD that you get in this:
Ocean Way® Drum Kit 1 Dry
Ocean Way® Drum Kit 2 Medium
Ocean Way® Drum Kit 4 Dry
Ocean Way® Drum Kit 4 Ambient
Ocean Way® Drum Kit 5 Medium
Ocean Way® Drum Kit 6 Ambient
Ocean Way® Drum Kit 8 Dry
Ocean Way® Drum Kit 9 Dry
Ocean Way® Drum Kit 10 Dry
Ocean Way® Drum Kit 10 Ambient
Ocean Way® Drum Kit 12 Dry
Ocean Way® Drum Kit 13 Medium
Remember also that we give away Kit 10 Medium for free too (and we'll have it for Infinite Player as well) so you have all three mixes for Kit 10 just to know what that's like.
4) What is new or different here for those that might already own OWD DL or Drum Masters 1?
Well, first, OWD DL Edition comes with 5 Kits and then you can pick 2 more. While they do all have three mixes each vs. 1-2 mixes each in this GB, you do get 10 different OWD Kits in this... and for half the price of DL. So, unless you have Kits 1,2,4,5,6,8,9,10,12 and 13 then it might be a good deal for a variety of kits perhaps. There are a total of 15 possible DL kits to get and each one is normally $39. so for potentially just $99 in this GB you get a bargain... and that's not even considering the expandable Infinite Player that comes with this and the Drum Masters 2 kits.
From Drum Masters 2 compared to Drum Masters 1, besides the updated scripts/patches (which are free to DM1 users anyway) there is brand new sample content that can be found in the following kits:
Drum Masters 2 Collins Kit
Drum Masters 2 Duke Kit
Drum Masters 2 Doctor Nirvana Kit
Drum Masters 2 JB Sensitone™ Kit
Drum Masters 2 JB Danger Ogletree Kit
Drum Masters 2 JB Supraphonic™ Kit
Drum Masters 2 JB Brady Deep
Drum Masters 2 Bonhm Ludwig® Kit
Drum Masters 2 Stairway Levee Kit
Even those last two Bonham kits are a bit different than the Bonzo Drum Masters kit. They use different mics and hits from the same session as well as an echoey "castle-like" room (not a real castle but a stone wall room that is similar). The others are mainly brand new snares and tailored Tama, Sonor, Gretsch and Premier kits with various combinations of kit pieces (part new samples and part hybrids with other kit pieces in DM). You get the Nirvana Tama snare and a bunch of other cool snares.
Plus, when you say Drum Masters 1 - there were many different products in that series from Silver to Gold to Platinum to the Complete Kits or a la carte kits. So obviously there are even MORE new kits for people that didn't have everything to begin with. But even if you DID have everything in Drum Masters 1 there are enough NEW samples in this to be worth it, not to mention all new patches including some potential exclusive hybrid multis (ok, we're pretty set on doing it no worries but I'd like to see the GB hit the big numbers before we say officially) with kits that combine all of the various OWD and DM kit pieces together for some very interesting new animals that you will only find this one time here.
I hope that answers your questions Berf!