I'll have to spend tomorrow reading this whole post and getting caught up. Its quite a bit of reading!
The current center channel I have is an Infinity (something) that I bought several years ago and is WEAK compared to what I'm needing. Since I got a projector and about a 8' screen, the picture isn't matching the sound coming from the center channel if you know what I mean. I need a much more "grand" of a center channel to match the picture a little better. I've definitely noticed a lack of sound from my center channel. So....
I have a desire to build the Audax center channel with some slight modifications depending on some answers I get from you guys.
#1 Modification would be the construction of the enclosure. All internal dimensions, speaker configurations, and porting would remain the same. I saw a sub woofer design sometime ago (can't remember where) that was constructed by use of 3/4" mdf inside + 3/4" sand + 3/4" mdf outside. Let me explain this further. Every side (except the front where speakers mount) was composed of sandwiching 3/4" of regular playground sand between two pieces of 3/4" mdf which would result in each side being 2 1/4" thick. This was done by edging every edge of each mdf side with 3/4" strips and then filling the void with sand and putting the other piece of mdf on top of this securing it with glue and screws. This was done for resonance purposes. I'm not a speaker builder, but the design principle made sense and heck it just sounded like a pretty cool thing to do. Heh! Yes, I know this adds much to the construction process, but I believe it would be worth it and obviously would add to the "weight factor" mentioned above. (yes i know weight isn't everything)
#2 Modification would be replacing the Audax speakers with some higher end speakers of the same cone sizes. This of course would mean changing the crossover design appropriatly. I have NO experience in this at all. Speaker choice nor crossover design. This is the main part where I'm looking for guidance.
Is anyone up to the challenge of helping me choose some different speakers and doing a crossover design to reflect this. I don't think the enclosure should have to change any if we're using the same speaker cone sizes, but I could be wrong here. This modification would also mean that its not a true "Audax center channel" anymore. :P
Now for some basic stuff that I just don't know and questions I have...
How exactly are power ratings for speakers compiked? I've noticed that this Audax center channel uses several speakers with varring nominal power ratings. If I have a receiver that is 100W per channel, I would obviously desire a speaker with a max of 100W+ worth of power handling. What is the max of this Audax Center channel? Do you just take the nominal power of each speaker in the system and add them together or what?
Please let me know if anyone wants to help with my design challenges or if you can guide me to a place that can help, that would be great too. I think the addition of the sand to the construction of this center channel would be interesting to see and hear.