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Driver suggestions for DIY project

I'm getting ready to build a set of monitors and need fairly effecient drivers for my Cary 2A3 15 wpc push-pull amp. I'm considering an MTM configuration with 5" or 6" mid-bass drivers. I don't need drivers with low base for this set-up. What I want is wide dispersion in all the drivers with efficiency of at least 89db.

I have decided on the Hiquophon OW1 tweeter but need mid base driver suggestions, or at least want to know what graph or Thiel-Small parameters I should look for to compare drivers. Others on this board have suggested that dispersion is mainly a function of driver size and crossover frequency. I'm designing the system to crossover at 2500 hz.

I have heard good things about the Focal mid-base drivers as well as PHL. PHL's are real efficient mainly due to to paper cones.

Any thoughts would be appreciated.
bennett
dekay's avatar
dekay
2,959 posts
 
Bennett:

Still using that old amp (thought you /killed/buried it)?

If the listening room is medium/large I'll suggest that you look into more sensative speaker designs.

For starters you may find the following site interesting.

http://f18.parsimony.net/forum31999/

There are always exceptions to the general watts/efficiency guidelines (I have ran a few with success), but with the trial/error factor of DIY I imagine that there aren't many.
johnk's avatar
johnk
1,490 posts
 
How about 2 pair of fostex f200a drivers and a raven r1 ribbon tweeter,perside use the foste 100t transformer and a hovland music cap do your mtm .Would be arround 93bd 1 watt easy for a 2a3 to run and would have deep bass arround 32hz.Just a thought
eldragon
707 posts
 
I have experiance with Focal 7K4211DB, Kevlar midrange but is quite expensive. Another one i had built my Watt/Puppy clones with is Seas CB17RcY. Paper cone with phase plug. The same driver Wilson used in his Cub, that is also a MTM design. Good Luck!
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