Are my speakers any good? - Page 2

Galu · 03:07 PM

Quote:

Originally Posted by john123456

Aside from that I get the sense that x2 8-inch drivers might not be as good as perhaps x1 8-inch and x1 5-inch... not sure why they put in two of the same size? The reason I say this is combined with the titanium tweeter which is good for the high frequency stuff it sounds like the middle is lacking.

The lower 7.6" driver produces only bass frequencies (below 600Hz) while the upper 7.6" driver undertakes both bass and mid duties (up to 4kHz where the tweeter takes over).

The voice coil of the titanium tweeter is damped and cooled by 'ferrofluid' whch can dry up over time. This may explain the "harshness" you think you can hear in the speakers. Old ferrofluid may be removed and new ferrofluid installed in order to bring the sound of the tweeters back to spec.

I'm not sure from your posts if you are intent on renovating these speakers or simply wishing to discuss how good (or bad) they are. If you do not require any more renovation advice, I'll bail out now.

EDIT: I see Ugg10 got in in front of me regarding the lower driver!

john123456 · 13th January 2021, 03:06 PM

Like the idea of replacing the fluid if it's practical to do so. I don't fancy drilling out spot-welds or anything like that... but if it's simply a case of popping out a couple of screws then I may be up for that.

ErnieM · 13th January 2021, 03:14 PM

Not really worth taking that tweeter apart. A modern $20 tweeter can match or exceed its performance. All depends how involved you want to get.

At a minimum I would:
-Change out the caps to new ones.
-Install a new tweeter and place some felt or other absorbing material around it.

This would make for a noticeable improvement.

Galu · 13th January 2021, 03:16 PM

Here is how ferrofluid is replaced: Replace ferrofluid in tweeter - a B&W tweeter as an example

john123456 · 13th January 2021, 03:31 PM

Quote:

Originally Posted by ErnieM

Not really worth taking that tweeter apart. A modern $20 tweeter can match or exceed its performance. All depends how involved you want to get.

At a minimum I would:
-Change out the caps to new ones.
-Install a new tweeter and place some felt or other absorbing material around it.

This would make for a noticeable improvement.

Are modern tweeters really better though? What's the difference between older designs like I'd have in my speakers and new ones? Not saying this is wrong... just wondering how new ones are better.

ErnieM · 13th January 2021, 03:40 PM

Production quality/consistency and design. Less distortion, better matched frequency response.

Even foam around your current tweeters can smooth out the sound. Especially at higher spl's.

john123456 · 13th January 2021, 03:54 PM

what about changing away from metal tweeters... good or bad idea?

ErnieM · 13th January 2021, 04:05 PM

Depends on the tweeter in question. I like metal domes but I've only tried expensive ones. There's a lot to like about modern soft domes. Exceptional performance to price. Either can give great results.

When/if you take the tweeters out, measure the frame dimensions, the cutout, and check the impedance. Might even be marked.

Galu · 04:42 PM

This 8 ohm, 90dB, 96mm square frame, titanium dome tweeter could be a direct replacement: Visaton DSM 25 FFL Size 96 x 96mm

Galu · 13th January 2021, 04:47 PM

Attached images show the original MS titanium tweeters for comparison.

Similar Threads
Thread	Thread Starter	Forum	Replies	Last Post
is there any any good Mp3-Player??	ViennaTom	PC Based	182	28th September 2019 10:41 PM
any good walking shops in the uk for good capacitors	youngie	DIY HiFi Supply	0	12th February 2013 11:08 PM
Pulling any voicing from any good drivers	river251	Multi-Way	10	29th May 2012 07:11 AM
Looking for a good DIY PCB kit - RS ones any good? Others?	Morse	Chip Amps	33	5th March 2009 03:38 PM
Any suggestions for a good solution at a good price?	supertronik	Everything Else	0	18th December 2005 02:40 PM

New To Site?	Need Help?
Register to Participate Privacy Statement Contact Us	Frequently Asked Questions Did you forget your password? Mark Forums Read


	Please consider donating to help us continue to serve you. Ads on/off / Custom Title / More PMs / More album space / Advanced printing & mass image saving

13th January 2021, 03:06 PM	#12
john123456 diyAudio Member Join Date: Jun 2018	Like the idea of replacing the fluid if it's practical to do so. I don't fancy drilling out spot-welds or anything like that... but if it's simply a case of popping out a couple of screws then I may be up for that.

13th January 2021, 03:14 PM	#13
ErnieM diyAudio Member Join Date: Dec 2009 Location: Fresno, CA	Not really worth taking that tweeter apart. A modern $20 tweeter can match or exceed its performance. All depends how involved you want to get. At a minimum I would: -Change out the caps to new ones. -Install a new tweeter and place some felt or other absorbing material around it. This would make for a noticeable improvement.

13th January 2021, 03:16 PM	#14
Galu diyAudio Member Join Date: Apr 2018	Here is how ferrofluid is replaced: Replace ferrofluid in tweeter - a B&W tweeter as an example

13th January 2021, 03:40 PM	#16
ErnieM diyAudio Member Join Date: Dec 2009 Location: Fresno, CA	Production quality/consistency and design. Less distortion, better matched frequency response. Even foam around your current tweeters can smooth out the sound. Especially at higher spl's.

13th January 2021, 03:54 PM	#17
john123456 diyAudio Member Join Date: Jun 2018	what about changing away from metal tweeters... good or bad idea?

13th January 2021, 04:05 PM	#18
ErnieM diyAudio Member Join Date: Dec 2009 Location: Fresno, CA	Depends on the tweeter in question. I like metal domes but I've only tried expensive ones. There's a lot to like about modern soft domes. Exceptional performance to price. Either can give great results. When/if you take the tweeters out, measure the frame dimensions, the cutout, and check the impedance. Might even be marked.