Anyway to reduce cone cry?

[marshallguy]

Does anyone have experience with cone cry and any tips how to fix or reduce it?         

Here's Celestions reply a few years back in regards to some speakers I have....

      "{T3135 is a G12C-125 which according to our records was issued in May 1978. It was unusual in that it had a 3” diameter voile coil very different to our ‘normal’ 1.75”. This gave it the high power handling figure and combined with a 4lb magnet it had a 98dB sensitivity and low 60Hz resonance. The date of yours AM11 suggests the 11th January, 1979.}"

Speakers are in great shape except for some cone cry. It typically happens high on the neck, on the first or second string. It's most pronounced when the neck pickup is on, since you're getting the most amount of overtones. But it occurs lower if you strum or pluck hard. Volume doesn't have to be loud either. Strum a chord up the neck gently and you don't hear it. Some say a larger coil and or magnet can make it more pronounced which these speakers are both.

Could thickening up the cone with tape help?? I tried the paper towel between the back metal case and speaker but didn't
dampen anything. Ran a audio generator up & down but can't zero in on any particular frequency. No rubbing going on. I'd like to keep these speakers if i can  deal with the issue.

Thanks..

[Jalmeida]

Does anyone have experience with cone cry and any tips how to fix or reduce it?         

Here's Celestions reply a few years back in regards to some speakers I have....

      "{T3135 is a G12C-125 which according to our records was issued in May 1978. It was unusual in that it had a 3” diameter voile coil very different to our ‘normal’ 1.75”. This gave it the high power handling figure and combined with a 4lb magnet it had a 98dB sensitivity and low 60Hz resonance. The date of yours AM11 suggests the 11th January, 1979.}"

Speakers are in great shape except for some cone cry. It typically happens high on the neck, on the first or second string. It's most pronounced when the neck pickup is on, since you're getting the most amount of overtones. But it occurs lower if you strum or pluck hard. Volume doesn't have to be loud either. Strum a chord up the neck gently and you don't hear it. Some say a larger coil and or magnet can make it more pronounced which these speakers are both.

Could thickening up the cone with tape help?? I tried the paper towel between the back metal case and speaker but didn't
dampen anything. Ran a audio generator up & down but can't zero in on any particular frequency. No rubbing going on. I'd like to keep these speakers if i can  deal with the issue.

Thanks..

I have no experience fixing this. I found this, which given some of your proposed fixes you may have read as well. The gist is your cone may be the culprit, but you may need to rule out the speaker frame being distorted by being improperly torqued or over-torqued. 

I am curious on how the pliability of the cone is? Is the cone cry only above a certain volume? The tissue or tape idea in the link below almost seems a band-aide for a worn out speaker cone.

If the cry is only happening above a certain volume then doping the speaker could help. Or worse case recone.

https://guitarspeakerguide.com/speaker-cone-cry/

[echuta13]

I'm wondering if dampening (doping) the cone would minimize the issue?  The problem with doing this of course is that it's not really reversible.https://www.tedweber.com/whats-dope/

[Jalmeida]

Well, try some low adhesive(blue)masking take in that area as that is reversible and proves the theory. If that works, there’s your fix. But while you’re in there, may as well make sure you are not overtorqued and/or distorting the speaker frame.