Unfortunately I had to order a few xo parts for these, so no listening until some time next week. My final sim'd design ended up with 12 parts, 5 for the tweeter and 7 for the woofer. I may end up having to add a small bypass cap across the tweeters' padding resistor to give the top octave a little lift like I did with the Keramiskas. Oh well, xo parts are pretty cheap considering all of the time/labor spent designing and constructing speakers.
So you went and hit with double the resistance, but started the effect lower in frequency for a narrower band. I bet it took more resistance in the narrower applied bandwidth to get the required effect. Initially, I thought 8 ohms was being overzealous, but came out just right. They will honk if not suppressed enough.
Well our different baffle dimensions and different low pass slopes dictated a slightly different notch. My sims with my on-axis, off-axis, and my standard weighted average measurements all show what I want.
My 47 uF caps measure more like 54 uF, so I'll need to unwind my inductors a bit and possibly tweek the resistor too in order to hit my target response.
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Unfortunately I had to order a few xo parts for these, so no listening until some time next week. My final sim'd design ended up with 12 parts, 5 for the tweeter and 7 for the woofer. I may end up having to add a small bypass cap across the tweeters' padding resistor to give the top octave a little lift like I did with the Keramiskas. Oh well, xo parts are pretty cheap considering all of the time/labor spent designing and constructing speakers.
Ben, I used a parallel notch in the F6 filter with parts somewhat close to your suggestion... .60 mH/ 47 uF / 16 ohm.
FWIW my design is LR4 at ~3k.
So you went and hit with double the resistance, but started the effect lower in frequency for a narrower band. I bet it took more resistance in the narrower applied bandwidth to get the required effect. Initially, I thought 8 ohms was being overzealous, but came out just right. They will honk if not suppressed enough.
I think you'll like your pairing...
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Well our different baffle dimensions and different low pass slopes dictated a slightly different notch. My sims with my on-axis, off-axis, and my standard weighted average measurements all show what I want.
Yay, PE box full of xo parts showed up today. I should have a prototype whipped up and will be voicing this weekend.
My 47 uF caps measure more like 54 uF, so I'll need to unwind my inductors a bit and possibly tweek the resistor too in order to hit my target response.
Electrolytic? The PE electrolytics have been right on for me.
Yes, PE NP electrolytics.
GASP, right in the middle of the vocal and midrange too...
For shame!
(j/k)
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Digging through my parts I found a pair of 27 uF Cross Caps. Paralleled two 10 uF Madisound caps so no more NPEs.
'Ataboy!
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When I'm done voicing these, and if they sound good, I'll order a pair of 47 uF Audyn Q4 caps...
That's what I used on mine.
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Having spent a little time with these now here are my first impressions:
1) I messed up on the BSC. Presently these are a little bit too bass heavy. Easy crossover mod.
2) Really great midrange from the F6's!
3) Tweeters don't disappoint. Bells, whistles, cymbals, etc are excellent.
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Made a few small crossover changes and these guys rock! Looking foward to feedback in Grand Rapids.
If anyone is interested in using this midbass, PE has the F6 on sale this weekend for $34.20.
That's a good price, FWIW, $42 is regular price. It's a very underappreciated midbass that does a LOT right.
I look forward to hearing them...
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