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Multi-Way Conventional loudspeakers with crossovers

New crossover for my current speakers
New crossover for my current speakers
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Old 24th November 2017, 01:58 PM   #11
system7 is offline system7  United Kingdom
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I knew I'd seen this one before: Dynamics, brute force and resolution with tiny feet.

Fat lot of use the whole 10 pages and blog are though. Thanks to photobucket the whole thing is unreadable, and Ingvar didn't help by not posting the two component values. I think he used something similar to your simple ones.

Oh wait, this couldn't be the same CAW 638, CAT 408 speaker, could it?
Attached Images
File Type: jpg Ingvar Ahlberg MTM.JPG (49.7 KB, 136 views)
File Type: jpg Ingvar Ahlberg Morel CAW 638 CAT 408.JPG (45.8 KB, 140 views)
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Old 24th November 2017, 05:49 PM   #12
Lojzek is offline Lojzek  Croatia
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Steve, take it away as you please. I just wanted to encourage the OP to proceed with learning how to use measurements and then simulate.
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Old 24th November 2017, 06:58 PM   #13
system7 is offline system7  United Kingdom
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I love 6" bass as much as catching the 'flu.

But a polycone always seems like a reasonable proposition with 6".

AFAIK, most of the Morel 6" drivers are much the same: Old MOREL Driver Datasheets - DIY-loudspeakers.com

So I had a dig round, since I see no point in reinventing the wheel.

I thought this one was a bit prissy: MoreTrix Morel 2-Way Speaker Kit, Pair

And I found some sort of "Duet" sloped baffle below. Which looks like stuff I have built. Maybe I'd add a ca. 5kHz notch and do the usual MTM adjustment. IDK.

And then we have the original proposition, which I thought might be knocked into some sort of more conventional shape.

All wildly different approaches. I'm not sure I like any of them. Which is why I preferred to leave it to you.
Attached Images
File Type: png Morel Crossover from Renaissance Duet.PNG (43.7 KB, 127 views)
File Type: jpg Morel Duet Crossover.JPG (64.5 KB, 120 views)
File Type: jpg Morel proposition.JPG (20.6 KB, 117 views)
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Old 24th November 2017, 08:35 PM   #14
Rullknufs is offline Rullknufs  Sweden
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New crossover for my current speakers
Quote:
Originally Posted by system7 View Post
I knew I'd seen this one before: Dynamics, brute force and resolution with tiny feet.

Fat lot of use the whole 10 pages and blog are though. Thanks to photobucket the whole thing is unreadable, and Ingvar didn't help by not posting the two component values. I think he used something similar to your simple ones.

Oh wait, this couldn't be the same CAW 638, CAT 408 speaker, could it?
Yes, that's the speaker I've got! I have tried getting in touch with Ingvar but it seems he disappeared from the earth. My crossover looks like the one in that picture but with another 0.47 microfarad capacitor next to the big one.
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Old 24th November 2017, 09:40 PM   #15
AllenB is offline AllenB  Australia
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Quote:
Originally Posted by Rullknufs View Post
with another 0.47 microfarad capacitor next to the big one.
This might have been added by a previous owner. It might not be necessary.
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Old 24th November 2017, 10:32 PM   #16
Rullknufs is offline Rullknufs  Sweden
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This might have been added by a previous owner. It might not be necessary.
I am the only owner since I built these myself (bought a flat pack from Ingvar many years ago).
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Old 25th November 2017, 06:02 AM   #17
dotneck335 is offline dotneck335  United States
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BiAmp (Bi-Amplification - Not Quite Magic, But Close) - Part 1
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Old 25th November 2017, 02:32 PM   #18
EarlK is offline EarlK  Canada
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Hi Niklas ( I believe )

Over the last few days I've worked up ( more than ) a few networks for you to try out, but before I post them I'd like to see you acquire ( & then post ) the necessary data required for determining the acoustic offsets that occur between your 2 driver types.

This offset info is necessary before an accurate design can be made ( and only the owners of the drivers can actually acquire it ).

So, are you up for making some measurements ( on your UMIK-1 mic into REW ) ?


Last edited by EarlK; 25th November 2017 at 02:45 PM.
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Old 25th November 2017, 03:08 PM   #19
Rullknufs is offline Rullknufs  Sweden
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New crossover for my current speakers
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Originally Posted by EarlK View Post
Hi Niklas ( I believe )

Over the last few days I've worked up ( more than ) a few networks for you to try out, but before I post them I'd like to see you acquire ( & then post ) the necessary data required for determining the acoustic offsets that occur between your 2 driver types.

This offset info is necessary before an accurate design can be made ( and only the owners of the drivers can actually acquire it ).

So, are you up for making some measurements ( on your UMIK-1 mic into REW ) ?

Thank you very much!

I'm up for it, I just don't know how to start. I'm away for work this weekend but I'm free the whole coming week so I'll have plenty of time for measurements.
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Old 25th November 2017, 09:39 PM   #20
AllenB is offline AllenB  Australia
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@EarlK, wouldn't an estimate be sufficient?
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