suggestions - my first DIY speaker

[stephen123]

Hi. I'm new to this diy speaker building community, but i am very interested and eager to learn.
I was wondering about a couple of things.
I am going to be purchasing 2 audax hm170c0 6.5" woofers and 2 vifa xt25tg30 tweeters, and looking to build 2 way bookshelf speakers

1. I was thinking about making the cabinets about 15 inches tall (inside measurement), which using the golden ratio (1.618-1-0.618) the width works out to be about 9.25 inches (inside measurement). What should my depth be to maximize lower frequencies but not compromise mid and high?

2. I am open to suggestions for crossover design, as i don't know much about designing a crossover so help is much appreciated.

3. I know the audax hm170c0 has a db jump from 90db to 93db at about 600hz. Is that anything to worry about? And if it is, how would i regulate that?

Audax HM170C0 datasheet
vifa xt25tg30 datasheet



Thanks for encouraging and helping a fellow DIY'er get on his way to attempting to build a great set of speakers .

[Piek]

Hi,

do you own, or plan to get decent measurement-equipment for this project?

(If not, I would strongly suggest building a kit first, for example:
Audax Pro 21 )

Regards, Micha

[tinitus]

Originally posted by stephen123
Hi. I'm new to this diy speaker building community, but i am very interested and eager to learn.

1. I was thinking about making the cabinets about 15 inches tall (inside measurement), which using the golden ratio (1.618-1-0.618) the width works out to be about 9.25 inches (inside measurement). What should my depth be to maximize lower frequencies but not compromise mid and high?

Thanks for encouraging and helping a fellow DIY'er get on his way to attempting to build a great set of speakers .

At least you need to calculate box size...its the most simple thing, and its easy to find software
Some are easy and simple, others are more complicated doing graphs and all

As fore the last bit, I have to dissapoint you...thats not likely going to happen

I suggest you find a proper design, designed and develloped by good skilled people...and learn from that

http://www.troelsgravesen.dk/Diy_Lou...r_Projects.htm

This one I dont know anything about...but sure looks good

http://home.versatel.nl/chiararomee/diy/indexeng.htm

And there several others