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Taking a MANGER MSW apart
Taking a MANGER MSW apart
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Old 16th September 2021, 06:33 AM   #51
jzagaja is offline jzagaja  Poland
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Taking a MANGER MSW apart
Laurence Dickie (Vivid Audio) in one of his great YouTube presentation used these statements as funny end.
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Old 16th September 2021, 09:45 AM   #52
bentoronto is offline bentoronto  Canada
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Join Date: Jan 2008
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Taking a MANGER MSW apart
Quote:
Originally Posted by stokessd View Post
Sheldon -

I looked at the very nicely produced Quad rebuild website and glad to see freq plots and helpful remarks, albeit coming from a commercially motivated source.

But the first thing that struck me in looking at the glamour opening photo is: why is the mic pointing in the wrong direction instead of right-angle to the sound source?

A little goof the photographer made for aesthetic purposes?

B.
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Old 16th September 2021, 10:20 AM   #53
epvince is offline epvince  Netherlands
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Look again...
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Old 16th September 2021, 05:09 PM   #54
justanalogue is offline justanalogue  Netherlands
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Join Date: Nov 2008
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Originally Posted by profiguy View Post
I have manger zerobox 109s but re-engineered the crossovers and changed the MSW compartment dampening. This transformed them and they sound significantly better than stock.

The main things the MSW needs to work properly is the correct enclosure volume and cabinet dampening along with a crossover point no lower than 600 hz 2nd order or 900 hz 1st order (this was my choice to retain perfect pulse response). With a good woofer, there is no deficit in resolution or accuracy compared to the low stock crossover point used in the zero zerobox 109. If anything, its improved in regards to dynamic capabilities and power handling, allowing the MSW to come alive.

You will ruin the sound and suck the life out of the midrange from the MSW if you just simply stuff the enclosure. The driver is incredibly sensitive to where and how far you place the dampening material in relation to the rear surface of the MSW. That annoying 1k-ish resonance can be reduced to a negligible level by careful placement and proper amount of dampening material. Troelsgraven harps on this in his review and doesn't consider this being a possible influence despite Manger emphasizing the importance of correct dampening and the midrange frequency performance of the MSW.

Yes, the off axis HF is an issue if you are the type of guy who likes wide dispersion and wants to listen outside of the sweet spot. It honestly doesn't bother me and the sweet spot isn't that small for my preference.

The MSW sound is effortless and transparent. Don't let people's opinions keep you from discovering the sound of these drivers. The only thing that pops up on Google is the Troels review which isnt the whole story, plus the drivers he reviewed have black paint over-spray all over the dampening foam star - go to his site and see for yourself. Troels is a smart guy and great speaker designer, but his MSW review isn't completely applicable.
Thanks for all the info, just curious if you want to share the way you modified the Manger housing and padding.

Kind regards,

Willem.
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Old 17th September 2021, 05:36 AM   #55
profiguy is offline profiguy  United States
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I'll look for my notes. It was about 10 yrs ago. I can tell you I used a tennis ball suspended about 3 inches from the MSW back and covered it with 1 inch loose sheeps wool. Cabinet walls in back were lined with 2 inch thich PU foam and front inside corners lined with 1 inch foam. Nothing right behind the MSW aside from the wrapped tennis ball. I got the tennis ball trick recommendation from the audio physics madea speaker. I have the original paperwork somewhere regarding the crossover. I did slightly change the LCR notch a bit to flatten out the lower mids.

I used an older gen version of the ZB 109 in Germany working for BR3 radio outside of Munich splicing commercial tapes together. I instantly fell in love with the sound. I called it the un-speaker. That was in th late 80s. I bought my last diy MSW pair from E-Speakers before Manger pulled the plug and stopped selling to diy.
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Old 20th September 2021, 02:16 PM   #56
justanalogue is offline justanalogue  Netherlands
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That would be very nice, thanks in advance!

Kind regards,

Willem.
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