A little MM two-way

[Geek]

So, just what does one do with a pair of Aurasound NS3-198-8A's on hand? Call for a pair of dollar tweeters and go nuts on a little two-way I designed for multimedia use.

The baffle is laminated pine with a 1/8" chatke-kok bezel for the speakers in a design inspired by Chris B.

Finish is 3 simple layers of Minwax hand rubbed. The cab is painted with enamel and sputtered with black laquer.

More pics:

http://bb.sicomm.us/diyAudio/Aurasound/Cab.jpg
http://bb.sicomm.us/diyAudio/Aurasou...fle_detail.jpg
http://bb.sicomm.us/diyAudio/Aurasound/Seals.jpg
http://bb.sicomm.us/diyAudio/Aurasound/blends_in.jpg
http://bb.sicomm.us/diyAudio/Aurasound/rear_port.jpg

These two were difficult to cross and the online calc's and spreadsheets were less than helpful. Final values done with a speaker testing setup and FFT:
http://bb.sicomm.us/diyAudio/Aurasou..._crossover.gif

I'd like to thank Planet10, as he was instrumental in these by supplying the speakers and putting up with my emails for advice

The sound is impressive for their size, but I find room placement far more critical than the front-firing ports of my DP-II's. Moving them 15cm meant the difference between soggy mud and acceptible bass.

My only problem now is the WAF of these is so high, I'm not allowed to put the FR's back until I rebuild their cabs

Cheers!

[DigitalJunkie]

Ohh Sekzy!

Nice work Bud!

[Cal Weldon]

Those look really nice Gregg. The red is a nice accent.

What are you doing up at 1 in the morning?

[Geek]

Thanks guys

Originally posted by Cal Weldon
What are you doing up at 1 in the morning?

Much online work I do is with Aussies, Asians and Orientals - your 1AM is my 4PM

[JasonB]

They look great! Nice work.

I really like the look of those Aura drivers too, I have had my eye on them for a while and might use a pair in a future project.

What are you planning for the re-build of your FR enclosures?

Jason(from Chilliwack)

[Geek]

Originally posted by JasonB
They look great! Nice work.

I really like the look of those Aura drivers too, I have had my eye on them for a while and might use a pair in a future project.

Thanks!

C'mon over for coffee and have a listen sometime

Originally posted by JasonB
What are you planning for the re-build of your FR enclosures?

Bwaaahahahaaaa! A real sexy dampened bottom firing unit with similar baffle and finish to this one. High sound, high WAF

[Geek]

Update:

After a week of listening, I did a tweak on the crossover (original schematic link in the first post updated).

The correction is simple - change the 5 ohm resistance bridging the tweeter to 10 ohms.

I also had the opportunity to replace the capsule in my test mic with the correct one, so the following is the corrected frequency response. It appears the $1 tweeter peters out at 18K