GRS Poly "surface mount" 4" 4 ohm and ND28F in waveguide

Ken is printing waveguides for the tweeters, and I just bought 0.34 cubic foot flatpacks from Cinergy since it is too cold to spend too much time out in the garage. I can glue them up indoors, and then maybe cut one driver hole at a time as weather permits.

I will flush mount the tweeter, but surface mount the woofer.

In this enclosure, it will extend to 43 Hz!

Granted, it won’t play super loud at that low of a frequency but it should do fine for nearfield usage.

So anyways, should be a super fun budget banger that should rock as nearfield PC speakers (as long as I do not fuck up the XO).

Measured parameters:

These are nearly perfect parameters for a small driver, check out excursion control below tuning:

I have noticed on many smaller drivers provided Q is > 0.5 and they are relatively low compliance you can expect excellent cone control below tuning - at the cost of a somewhat large (relatively speaking) enclosure.

Anyways, will be my last budget banger for awhile, need to focus on some of the nicer designs I have in the queue.

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Yeah been waitin on that all cone 3-way :wink:

That is still very much on the docket, likely one I’ll build cabinets for this summer and complete next winter.