Just picked up these DIY Wilmslow 3-Ways of flea bay... sound awful, help please! - Page 2 - diyAudio
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Multi-Way Conventional loudspeakers with crossovers

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Old 27th January 2014, 12:37 PM   #11
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in the mean time, some questions:

- Does anybody have experience working with a 3" dome midrange? if so what tips would you give for its implementation?

-Any thoughts on the bass drivers? is the bass just sloppy cos they're mounted in a colossal hollow box?

(final transmission line questions on a different thread)
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Old 27th January 2014, 02:27 PM   #12
badman is offline badman  United States
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Trace the crossover and post a drawing, and you'll get much more meaningful help. Even better if you add component numbers, and show the board with component numbers overlaid, so we can see if there's an obvious miswire or some such.
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Old 27th January 2014, 04:06 PM   #13
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to me they look like the vivace 87.
Go for more info to http://audiocomponents.nl/drawings/vifa/classicline/
Or e-mail them ; they are very helpfull !!

good luck , Leon.
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Old 27th January 2014, 04:08 PM   #14
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Tried my own link; didn't work ; just google audiocomponents.nl
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Old 27th January 2014, 04:24 PM   #15
kevinkr is offline kevinkr  United States
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Attempted to fix your link, got a forbidden error from audiocomponents.nl
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Old 27th January 2014, 08:14 PM   #16
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Audio Components - Vifa - Classic Line
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Old 27th January 2014, 08:22 PM   #17
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That woofer has plenty of bass in a sealed box if used in a small room based on my use but I think it needs to be crossed lower than the dome likes.
I would be inclined to rebuild the front panel anyway into mirror images with the mid and tweeter offset.
I have never had much luck with dome midrange drivers myself but I have heard marvelous implementations using that mid
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Old 27th January 2014, 08:53 PM   #18
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Definatelt not any if the above diy designs... went through all of them.
looks like a pretty standard wilmslow audio cabinet, but when I spoke to them today they said it wasn't a ki they've ever done. Not surprisingly, taking the inductor out of the tweeter circuit helped a lot, as did switching the polarity on the mids.
I
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Old 27th January 2014, 09:38 PM   #19
sreten is offline sreten  United Kingdom
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Hi,

The bass driver will go fine in a properly proportioned big vented
box, and wouldn't be that too shabby in a smaller sealed box.
A TL will be very big.

The mid needs a a rear sealed chamber.

Main area of contention is baffle step and integration to the
mid dome. One approach needs serious x/o components
to null the impedance peak of the mid-dome.

Any tweeter coil should be parallel.

I suspect muppet x/o calculator components.

rgds, sreten.

http://sites.google.com/site/undefinition/diy
(see if nothing else, the excellent FAQs)
http://techtalk.parts-express.com/sh...d.php?t=219617
http://www.zaphaudio.com
http://www.zaphaudio.com/ZA5/
http://audio.claub.net/Simple%20Loud...ign%20ver2.pdf
http://www.rjbaudio.com/Audiofiles/FRDtools.html
http://web.archive.org/web/200909021...esigningXO.htm
http://www.rjbaudio.com/
http://web.archive.org/web/200909022...ve99/Spkrbldg/
http://speakerdesignworks.com/
http://www.htguide.com/forum/showthread.php4?t=28655
http://www.deadwaxcafe.com/vzone/david/david.htm
http://www.troelsgravesen.dk/Diy_Lou...r_Projects.htm
http://www.humblehomemadehifi.com/download.html
http://www.quarter-wave.com/
http://www.frugal-horn.com/
http://www.linkwitzlab.com/
http://www.musicanddesign.com/

Great free SPICE Emulator : http://focus.ti.com/docs/toolsw/fold...t/tina-ti.html
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Last edited by sreten; 27th January 2014 at 09:47 PM.
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Old 27th January 2014, 09:40 PM   #20
tinitus is offline tinitus  Europe
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Quote:
Originally Posted by nannoo View Post
Not surprisingly, taking the inductor out of the tweeter circuit helped a lot, as did switching the polarity on the mids.
I
the inductor is supposed to be in parallel
must have been mounted wrong
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