Anyone willing to help newbie with crossover design?

[zachary]

I am working on my first speaker project. I have done a lot of research, but the details of crossover design still confuses me, and it seems that this is the most important part.

I am putting together a pair of MTM speakers.

I purchased the following equipment:
- Stryke Audio's SA071 7" drivers (not the best driver out there, but at <$10 each, they seemed like a good choice for my first project)
- Morel DMS-30 tweeters
- Cabinets (21"h x 8.5"w x 11"d - exterior) made of 0.75" MDF, sealed, rounded corners, offset from center tweeter, volume = .75 cu ft
- Dampening material (dacron?), purchased from Meniscus

I found a crossover on Stryke's website for the same drivers and cabinet, but he used the lower-end tweeter that he offers on his site, and not the Morel DMS-30. There are very few specifications on his site for this other tweeter, so I cannot determine the differences between it and the DMS-30.
Is the tweeter a consideration in crossover design? Most of the software I have tried do not even seem to consider the tweeter.

I tried several of the free applications out there, such as Passive XO Designer, WinISD, Speaker Workshop, and many others, but I ran into problems...
1. I do not have the FRD or ZMA files for the drivers or tweeters (apparent requirement for Passive XO Designer)
2. The tools are not robust enough to create a "real" crossover
3. I just do not have the technical knowledge to understand all the software's parameters and how they affect the crossover and speaker's performance
4. I do not have measurement equipment

Can someone please help me? I would appreciate any suggestions and guidance that you could provide!

Thanks very much!!!
Zach

[Mark25]

http://sound.westhost.com/lr-passive.htm may make an interesting read for you.

[rick57]

eg here :
http://www.diyaudio.com/forums/print...0648&perpage=8