cap and amps install

I, for one, am reading and learning.......and I do have a rather loooonnnggg learning curve!  These types of intelligent posts make me happy to be a part of this forum, too.  I just can't speak with the big brains on mattters like this.  Someday, it will all come together.....

WinISD is free software available here:   http://www.linearteam.dk/default.aspx?pageid=winisdpro

You plug in the speaker parameters and it helps you design the box.  Plug in the parameters you found on that page.  Try to set the tuning frequency lower, and see if you have room for that large of an enclosure.  Play around with it and try to see what happens to the SPL curve.

haemphyst,

First, thank you for the very thorough and interesting response.  Your post made a lot of sense and I am much less concerned with these problems.  I'm learning a lot from you on this board - I feel like I should be paying you.    God knows I've learned less from some formal education credits costing quite a bit.

Alright.  So my question is this, and I know this is off-topic for AJRX, but I'll continue to keep helping him...  When _does_ something like this start to matter for daily drivers looking for a little more output from their otherwise SQ system? 

The situation I'm thinking of is a very quick pluck of a bass guitar or a tight thump to the kick drum.

I've been trying to find some credible references regarding time smearing and what audible effect delay actually causes over the bass region.  Another reason I'm so interested in this topic is because I'm currently trying to plan my HT system.  I'm trying to decide between porting my L/R mains or leaving them sealed and between whether or not to use 2 subwoofers or one.  Anyway, I know this is far removed from car audio, but I hear all sorts of bable about 'transient' response and phase issues in the bass region on various websites.  Some of it is conflicting.  So, I'm trying to make a real determination of how audible delay problems actually are in the bass region.

On that note, I finally found an interesting post (see the last post on the page) here: http://www.trueaudio.com/post_003.htm 

John's post seems to support that you are very right.  His probable conclusion, based on some experiment data, seems to be that reasonable delay, (on the order of that probably resulting from different inductance and Q values), has very little audible effect in the bass. 

Now, put enough difference in distance between the drivers and it seems to make sense that you'll clearly start having an audible issue.  So, after my feeble analysis, it seems that reasonable speaker placement in the bass region probably has much more effect on transient response than either driver or box differences.

Would you say this is a correct conclusion?