Who makes the best 7" and 6.5" drivers?

[nicoch58]

I have another question:
I was searching on the net and found the Scanspeak Revelator 18W/8531G00 7″ Midwoofer.
Does the "midwoofer" designation mean that this driver is not able to reproduce low-bass frequencies?
Do I have to search for one listed as WOOFER, not MIDWOOFER?

Thanks.

Is da bass animal, buy with confidence ....
http://www.troelsgravesen.dk/Revelator-66.htm

 

[Turbowatch2]

28 Hz resonace frequency, +- 6.5mm linear travel and 60 Watt rms handling tell you this is a woofer for a nice 2-way. Scan Speak is recommending it up to 7000 Hz and an MMS of 17.5 Gramm should make it midrange capable. I would x-over it around 2000 Hz because of cone size.

 

[Marveloudio]

Don't trust any measurement system :

https://www.google.com/url?sa=t&sou...sQFnoECBEQAQ&usg=AOvVaw2fhulgdamqJozxQWPphpd3

.... funny how sweet french waves behave differently!

Ultimate Audio Products from france?

Seems Dayton Audio has made the best progress lately 🙂

and yes , price is a sales booster!

 

[Turbowatch2]

If you look for a replacement "Grand Piano" woofer, these are "tuned" with an extra magnet. Also, there seem to be two with a larger magnet. You should specify what you really need.
Best way to find a match is to measure a working woofer. The extra magnet's position should be marked, then removed for measuring. If this is a stock driver, you can transfer the magnet from the defective woofer to the new one. Anyway, this is OT, maybe open a new thread for your problem.

 

[Marveloudio]

regarding 2nd magnet : Situation not exactly defined!

Is the 2nd magnet (partly) magnetized?

Glued? Which glue? Can be nearly impossible to remove!

2nd magnet orientation : in repellent mode or attractive mode? (in attractive mode the resultant B-field in the air gap is lower than without 2nd "booster" magnet)

Hint : In repellent mode it is not possible at a later point in time , to re-magnetize the 2nd magnet! (to get the same gain in B-field in the air gap)

Magnetix can be tricky!

 

[Progger58]

If you look for a replacement "Grand Piano" woofer, these are "tuned" with an extra magnet. Also, there seem to be two with a larger magnet. You should specify what you really need.
Best way to find a match is to measure a working woofer. The extra magnet's position should be marked, then removed for measuring. If this is a stock driver, you can transfer the magnet from the defective woofer to the new one. Anyway, this is OT, maybe open a new thread for your problem.

How about here? 👇

https://www.diyaudio.com/community/...er-or-scanspeak-6-5-inch-bass-woofers.406826/

I really want to buy a pair of woofers for my SF speakers.

Thanks for your help.