Ok so here's a little bit of the back story, I recently got a new job and relocated back to Seattle. We've had renters in our house for the last year and a half while we lived in Portland and won't be moving back to our house till June/July-ish. So in the interim we are staying at my parent's house. As a bit of a thank you for letting us stay at their place I'm going to build my dad a new sub. When they moved into the house it was all Bose cubes and we finally ended up building some small towers and a matching center using some Dayton RS100-8's which for their use are fantastic and a huge upgrade over the Bose. They are still using the bass cube thing and it absolutely blows. The space is small probably 10'D x 16'W and open to the kitchen, living room, etc but they sit very close and don't ever listen very loud.
I was wanting to build a fairly small-ish 10" sub, most likely ported, to replace the cruddy little bass module. There will be no ability to EQ so I was thinking ported to be able to get the extension down to the low 20's or so. My own system will probably be quad 18's and EQ'd but that'll be a different thread
Here's what I was thinking for the sub:
Dayton RSS265HF-4: http://www.parts-express.com/pe/showdetl.cfm?partnumber=295-460
Bash 300w Plate amp: http://www.parts-express.com/pe/showdetl.cfm?partnumber=300-750
Plus misc box materials.
I was wanting to have the sub and possibly the port firing down and building a pedestal for it to sit on ala some of the old SVS or HSU offerings. The port could face the rear also, just depends on how long it would need to be. I have probably 14-18" depth but probably 1-1/2' or so of width and decent height available as well. There's lots of grandkids running around so keeping the driver facing down and out of harms way as well as being sturdy (IE not tippable) and the port out of the way for putting things/toys/food/etc into it is ideal hence my thought for the sub facing down as well as the port.
So here's where I need some help. I'm not a WinISD or similar expert and so many of you are, I could use some help in designing the proper box. That and I was hoping for some input on the driver/amp combo. I was hoping to stay around $250 or below and note that QUALITY is much preferred over QUANTITY of Bass as again, my parents don't listen loud. 95% of the use will be TV/HT and they are in their mid 60's so they don't listen loud. I'm really going for a quality fill from 80hz below, nothing crazy.
I will be building at the same time a sub for my brother in law but can start a new thread for that if necessary. We'll have the same budget restrictions but the goal will be quality SPL for that one. If one design can fit both parameters with the only difference being the gain applied at setup then perfect. If we need to deviate that is fine as well.
If I haven't answered any preliminary questions please let me know.
Thank you all in advance for the help!