box design

[laki101]

building my firs ever DIY amp and speakers and cause of that I would like to stick to some checked design.

I need a design for 2 way speaker box with a 25cm bass and about 10cm middle (not sore yet exactly for middle tone one) 4 ohm if it matters some how

and one question more is do I need some different middle tone then if I were making a 3-way?

 

[Inductor]

Look here for a lot of experience and ideas, matching speaker drivers and xovers.
SEAS constructions

You mean that if you use a tweeter (*middle tone?) in a 2-Way config. (w. Woofer/Tweeter), that you can use the same tweeter in a 3-Way (Woofer/Mid-Woofer/Tweeter), yes that looks like it.

*By middle tone do you mean the mid frequencies or voice band like from a Mid or a Mid-Woofer, 300-2KHz range, (Squawker) or the top/high frequencies 2K-20KHz tweeter (?).

 

[laki101]

By mid I mean the speaker for middle range frequencies like the one on a 3 way.
So to simplify the question: in 3 ways you use bass, mid range speaker and high tone speaker.In 2 way you use bass+mid range or high tone or some speacial for 2 ways?

 

[barackuda]

laki101
search for a F.A.S.T. projects in FULL Range forum

D

 

[PeteMcK]

Examples from the designs of others can be quite instructive:
Zaph|Audio
DIY Loudspeaker Projects
Projects
Humble Homemade Hifi

 

[planet10]

In 2 way you use bass+mid range & high tone (tweeter)

Or, as barackuda alludes to, bass & mid-tweeter. This is my preferred approach as it puts the (evil) crossover in a place where the ear is less sensitive to XOs (because the wavelengths are longer and effective driver separation becomes much, much smaller)

Here is a place to start if this catches your imagination http://www.diyaudio.com/forums/full-range/144099-thread-tysen-variations-fast.html

dave