Suggestions for aluminium ribbon damping?

[audioquestM-40]

Originally Posted by Few

I will, of course, shamelessly copy the approaches of those who have come up with nice ways to corrugate the drivers if it is shown to help, but at the moment I remain distracted by the evidence which suggests it doesn't buy you much. Have I just missed the set of data making it clear we all ought to ruffle our ribbons?

Eager to be shown ignorant...

Few

Steal away, it's the greatest form of compliment! In the corrugation, I believe the detriments are outweighed by the benefits. While it might "measure" worse, I feel the corrugations allow the ribbon to flex and not be pulled taught when not in it's relaxed state. They also have a much nicer appearance with a corrugation.

[dacen]

The prototype uncorrugated bass membrane have been playing for over 20 years, but with a little buzz at certain frequencies and without the possibility to tune it for different resonant frequencies. The other thing I have done is to seperate the MR-TW from the bass membrane mechanically. It is now on the side of the woofer on its own stand. This allows me to adjust the distance to the listening position for the best performance. I will post some pictures some day in the near future, just for information.

[audioquestM-40]

Originally Posted by dacen

The prototype uncorrugated bass membrane have been playing for over 20 years, but with a little buzz at certain frequencies and without the possibility to tune it for different resonant frequencies. The other thing I have done is to seperate the MR-TW from the bass membrane mechanically. It is now on the side of the woofer on its own stand. This allows me to adjust the distance to the listening position for the best performance. I will post some pictures some day in the near future, just for information.

I would very much like to see the photos

[brian t]

[brian t]

Try one of these its a ribbed smocking rolling pin !

[dacen]

This tip is great. Probably very usable. I have been searching for something like this for a long time.

[brian t]

Also worth trying is camera lenses they they have nice ribs,pick up used cheap ones on ebay to experiment or even some bottle tops.

[audioquestM-40]

Originally Posted by brian t

Looks good, I'll try to find a couple. Thanks!

[audioquestM-40]

What I am looking for is a 24" long roller with heavier corrugations to some day make new bass panels. Mine are near perfect and don't rattle due to foam deterioration (after my special repair) but the day will come. There is a seller on eBay that has the near perfect tweeter and midrange corrugator. It has almost the same profile and depth but it's $50 for a plastic tool. I guess the cost is of little concern if it does the trick.

http://www.ebay.com/itm/Ribbon-Pleat...item41511a8693

[brian t]