1. When will the new design with the ribon tweeter and the new XBL^2 woofer be available (if it already has,please let me know where can I find it)? How much more will the new kit cost compare to the old a/v-
It will be some time around the first of the year before I get in the new XBL^ equipped drivers.
The RA/V-3 (A/V-3 with the ribbon tweeter) may be available in mid Oct.
I don't know exactly how much more it will effect the price as I still have to design the crossover for it.
2. If I decide to get the current a/v-3 kit that is on gr-research site now, can I switch out the tweeters with the ribons later on? Same goes with the woofer? Do I need new crossover for those?
Yes, and yes, and you will need to change the crossovers to use the new ribbons.
3. Danny, how much is the shipping cost for the a/v-3 kit with the upgrade sonicap to California 90033? I would like to get an estimate to budget myself.
$18.00 with insurance, ground UPS.
4. Any tips or suggestions for the project? Something like when building the cabinets, which side will I glue first? and so...?
Cabinet building is not hard. If you order a kit, then I will personally walk you through any aspect of the build process.
Typically I put tops and bottoms on the side walls. Then add the rear wall. Then slide in all the braces, and the front baffle last.