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RE: Indeed a 'diy scaled down 30.7'! ...

Posted by andyr (M) on May 20, 2021 at 15:43:13

In Reply to: someone diy a scaled down 30.7 (kinda) posted by Green Lantern on May 18, 2021 at 18:28:28:

I put that ad on Aussie Audio Mart - and had no idea it would be replicated across their other sites.

Yes, the end of an era - nearly 30 years with Maggies. :-(( The combination of:
a. wanting to get some brownie points from wifey, and
b. the room really being overwhelmed by 4 large panels

... prompted me last year (during lockdown) to start thinking of what I could replace them with - which would:
a. satisfy me, musically, and
b. have a minimal impact on the room (which is not a man-cave), and
c. be 2-way active - and able to go down to where the subs would take over.

This is what I came up with:

They hand over to my subs (in the front corners of the room) at 100-160Hz - still playing with that - while the XO between mid/bass and ribbon is @ 2800Hz.

Yes, Tim - they were inspired by the Kyron 'Gaias'! :-))

Having no baffle, there is a big hole below 500Hz; I had originally thought I might get away with only one mid/bass driver but the REW measurements I did with this setup showed that this just wasn't going to happen! :-((

With four mid/bass drivers ... only a small amount of EQ is required on the mid/bass drivers, with:
* subs being attenuated by 12dB, and
* tweeters by 8dB.

Drivers are:
* mid/bass - SB Acoustics 6 1/2" 'Satori' Textreme driver (MW16TX-4), and
* tweeter - Satori ribbon tweeter (AT60NC-4).

They are completely satisfying to listen to - and my wife is delighted with them!

Andy

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