uzzy

Have a play with some felt (something for a rainy day or coronavirus isolation)

Recommended Posts

Super Wammer
Posted (edited)

For the tweakers out there .. how about a dose of felt around your tweeter?  Not sure if it is another snake oil but hey ho it is worth a read and up to you whether you want to give it a try  http://www.tnt-audio.com/clinica/diy_tweeter_felt_e.html?fbclid=IwAR2asqJAty1O_t1tezp7zYrBofr6gt4XRch6pbCu-k5P46LxCPPx0EKjOdk

focal_td120tdx_tweeter_felt50.jpg

Edited by uzzy
additional data

Share this post


Link to post
Share on other sites
1 hour ago, uzzy said:

For the tweakers out there .. how about a dose of felt around your tweeter?  Not sure if it is another snake oil but hey ho it is worth a read and up to you whether you want to give it a try  http://www.tnt-audio.com/clinica/diy_tweeter_felt_e.html?fbclid=IwAR2asqJAty1O_t1tezp7zYrBofr6gt4XRch6pbCu-k5P46LxCPPx0EKjOdk

focal_td120tdx_tweeter_felt50.jpg

Er...reminds me of a 70s adult film! 😳

  • Haha 4
  • Upvote 1

Share this post


Link to post
Share on other sites

My tweeters and woofers  have velvet around them!

vhfyYJeFg34FHqVyActtK5-1200-80.jpg

Share this post


Link to post
Share on other sites

i remember russ does something similar

 https://www.russandrews.com/focus-rings/

Share this post


Link to post
Share on other sites

Oh @uzzy I rarely get involved in 2-channel , but you got me. I thought we were discussing this

D3FB4B52-32CE-4721-85A1-E057E7D45A60.jpeg.0745d1de1a11a2230e3325d45674c789.jpeg

  • Haha 2

Share this post


Link to post
Share on other sites

Didn’t someone like Jimmy Hughes recommend putting a cross made of thinly rolled blu tac in front of the tweeter? Not sure why the hole has to be oval- science not fully explained there 

Share this post


Link to post
Share on other sites
Super Wammer
6 hours ago, mr neds said:

Didn’t someone like Jimmy Hughes recommend putting a cross made of thinly rolled blu tac in front of the tweeter? Not sure why the hole has to be oval- science not fully explained there 

It can be any shape you like - make all sorts and see if they sound different lol .. I am not sure if the colour makes any difference or the thickness of felt used .. LS35As have a foam square around the tweeter - so get some foam and play with that as well if you are bored on a rainy afternoon 

Share this post


Link to post
Share on other sites
25 minutes ago, uzzy said:

It can be any shape you like - make all sorts and see if they sound different lol .. I am not sure if the colour makes any difference or the thickness of felt used .. LS35As have a foam square around the tweeter - so get some foam and play with that as well if you are bored on a rainy afternoon 

Its raining here...im chopping ash logs for my dad..sod the hifi. 🤣

  • Haha 2

Share this post


Link to post
Share on other sites
6 hours ago, mr neds said:

Didn’t someone like Jimmy Hughes recommend putting a cross made of thinly rolled blu tac in front of the tweeter? Not sure why the hole has to be oval- science not fully explained there 

He also recommended folding the corner of a curtain up, but not every curtain, they had to add up to an odd number in your listening room, and put a piece of paper into a paperback book

  • Haha 4

Share this post


Link to post
Share on other sites
Super Wammer
32 minutes ago, mr neds said:

Err, wasn’t that Peter belt? And isn’t the square around the ls3/5a made of felt, Uz? 

Yep thick felt pads not sure what sound difference foam would make - all I know is the KEF 101s aound better IMO without anything BUT perhaps they would sound better with a hunk of felt or foam lol 

Share this post


Link to post
Share on other sites
2 hours ago, mr neds said:

Err, wasn’t that Peter belt? And isn’t the square around the ls3/5a made of felt, Uz? 

It may have been, but JMH definitely pushed it out to a wider audience through his magazine articles

Share this post


Link to post
Share on other sites

I've never been one for snake oil, home bodge jobs or faffing with my hifi. But I was bored yesterday, and my hifi wasn't doing it for me, so I thought I'd try a variation of this.

I didn't have any felt but I did have some small foam blocks about the size of an elongated 50p piece. So I temporarily stuck one to each side of the tweeter surround on my PMC FB1s (just using a bit of double sided tape)

I wasn't expecting anything really, but I have to say I was amazed at the difference it made. It seemed to focus and improve the treble and brought the speakers to life.

I suspect it's worked because it cut down on reflections from my side walls (even though the speakers are well away from them), as I don't believe it's actually done anything the sound at the speaker itself. I suspect the reflections may have been interfering with the direct treble signal coming from the tweeter

Anyway, it's staying there. Best improvement for a while, cost £0

  • Like 1

Share this post


Link to post
Share on other sites

I think this is worth trying for good technical reasons not snake oil . Ive found thicker felt to be a bit more effective than the thinner kind. A square or oval shape hole should be better than  a round one to stagger any reflections off the felt edge but I think this is a very small effect.

  • Upvote 1

Share this post


Link to post
Share on other sites
Super Wammer
Posted (edited)

This is what I used on my LS35a clones

https://www.falconacoustics.co.uk/ls35a-t27-felt-tweeter-bbc-specification.html 

Edited by greybeard
  • Like 1
  • Upvote 1

Share this post


Link to post
Share on other sites

Join the conversation

You can post now and register later. If you have an account, sign in now to post with your account.

Guest
Reply to this topic...

×   Pasted as rich text.   Paste as plain text instead

  Only 75 emoji are allowed.

×   Your link has been automatically embedded.   Display as a link instead

×   Your previous content has been restored.   Clear editor

×   You cannot paste images directly. Upload or insert images from URL.


  • Recently Browsing   0 members

    No registered users viewing this page.