Regarding tweeter notch... From web calculators nothing good can be derived for any specific driver. Properly implemented notch filter flattens the impedance and reduces the output at Fs. Personally, everything above -25dB at Fs i don't consider a good design. There are tweeters that can maybe endure that, but there is no reason to stress the tweeter. How many octaves the xover frequency is far from Fs doesn't mean a thing. With sharp filter it can be closer, with shalower it must be as far as possible. See pic.
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Morel's curve with 5.6uF falls about 2 or 3dB short of that criteria. I don't want excessive distortion nor stress on CAT378. My sample has ~600Hz Fs, and am willing to use the LCR filter provided it is effective in reducing excursion in Fs region
True.
At least the tweet fs is far below the 4700hz pole.
6db not good with med to loud volumes, let alone dense music.
But an excellent option for time alignment or full range driver folks.
Less distortion, cleaner highs, better dispersion.
At least the tweet fs is far below the 4700hz pole.
6db not good with med to loud volumes, let alone dense music.
But an excellent option for time alignment or full range driver folks.
Less distortion, cleaner highs, better dispersion.
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I'm still considering a cabinet for this combo. Wonder how B102 would sound with a round piezo -? big hole in the response ? there ought to be a mate for KSN1005 to "something"
random old KSN1005 response with SONCE's high pass filter scheme (also a KSN1016a)- the mic had objects close and tweeter just sitting on top of a speaker cabinet so the graph should look smoother under proper circumstances
SONCE's Filter scheme - i used a cheap Dayton 20ga 0.5mH coil, two 3.3R in series, 27R and 33R
random old KSN1005 response with SONCE's high pass filter scheme (also a KSN1016a)- the mic had objects close and tweeter just sitting on top of a speaker cabinet so the graph should look smoother under proper circumstances
SONCE's Filter scheme - i used a cheap Dayton 20ga 0.5mH coil, two 3.3R in series, 27R and 33R
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newer b102 is maybe 6db down @ 2khz...............
You'd need older out of production big piezo (with its own 8khz problems) to get down there.
You'd need older out of production big piezo (with its own 8khz problems) to get down there.
got an old B102 in a Karlson 12 copy (the odd 7-slit vent "Pioneer" model) - might be an ok match - might not keep up like my K-tube and compression driver.
"MTTM" = B102 CAT378 CAT378 B102 ? upper dynamics should improve - money = "+3dB" 🙄
- wonder if an inexpensive 3-way could compete? - probably have to give up the first order
"Selenium" must measure their ST400 with a high pass filter. I'd like to try the PRV DE35 ripoff below
but it might make more sense to spend the xtra 15 bucks for the B&C (?) - still a nice response curve
on the PRV. Seems I saw something regarding a DE35 in Klipsch application not sounding as good as a K77/T35
- could be the case.
I have Slenium's ST324 and ST320 = very nice sound in their range.
https://i.imgur.com/h2xc6Fe.jpg
https://i.imgur.com/L6mtlXv.jpg
- wonder if an inexpensive 3-way could compete? - probably have to give up the first order
"Selenium" must measure their ST400 with a high pass filter. I'd like to try the PRV DE35 ripoff below
but it might make more sense to spend the xtra 15 bucks for the B&C (?) - still a nice response curve
on the PRV. Seems I saw something regarding a DE35 in Klipsch application not sounding as good as a K77/T35
- could be the case.
I have Slenium's ST324 and ST320 = very nice sound in their range.
https://i.imgur.com/h2xc6Fe.jpg
https://i.imgur.com/L6mtlXv.jpg
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Give up 6db ?
Never !!!
For me, maybe below 150hz..........
I was hoping for 6db more output.
3 way, that would be a ways off, if ever.
Jon
Never !!!
For me, maybe below 150hz..........
I was hoping for 6db more output.
3 way, that would be a ways off, if ever.
Jon
Maybe something like this driver rolled off 2nd order with the tweeter rolled off 1st order, -3db point in the 2500 hz range. The spl levels seem to match up well.
Dayton Audio RS150P-4A 6" Reference Paper Woofer 4 Ohm
I happen to have a couple of the rs150p's on hand as leftovers.
Dayton Audio RS150P-4A 6" Reference Paper Woofer 4 Ohm
I happen to have a couple of the rs150p's on hand as leftovers.
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Maybe.
I was looking at peerless 6" with copper cap.
2 at 86db would match near the 92db morel.
Drivers with copper cap or sleeve usually have a flat impedance, easier to make a crossover.
I was looking at peerless 6" with copper cap.
2 at 86db would match near the 92db morel.
Drivers with copper cap or sleeve usually have a flat impedance, easier to make a crossover.
I don't know if you could mount two 6's close enough to get an extra +3. I was looking at it again and building any crossover like that from scratch would be a challenge. Not sure how baffle step is done in a series crossover.
I believe this design uses the simple series crossover with the morel. Seems a bit like an orangutan clone.
YouTube
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