Strange noise

[gush]

I have a 2x12 cab with weber silverbell 50w alnico speakers.

I was playing through it last night and I noticed that when I play a note or chord, as the guitar starts to taper out I hear a fuzz tone ?

It lingers a little longer than the guitar notes do. I plugged into my 1960a cab and I don't hear it.

I checked to make sure there was nothing loose on cab.

What gives? Anybody else experience this?

 

[Birdsofprey]

Sounds like amplifier tubes. What amp are you using. Oh and if it’s a tube amp power tubes.

 

[Birdsofprey]

And could you try another head through your 2x12?

 

[archtop]

What amp? Are both cabs the same impedance?

 

[Daryl Jones]

I hate electronic(s)/gremlins. Mostly because I'm the world's biggest electro-tard. Has to be some form of interference on a circuit somewhere....just don't ask me where.

 

[Deleted member 5962]

Sounds like amplifier tubes.

That would be my first thought... IF you were using tubes.

 

[gush]

Jcm800 studio head but it doesn't do it through 1969a cab at 16ohms.

I'll try other cabs tonight. I have five other 4x12s. My 2x12 with g65s is in truck.

 

[gush]

My jcm800 isn't much more than a year old and I don't gig regularly so I'd hate to think it's tube plus I do not hear it through 4x12.

 

[László]

Could be you're hearing frequencies through the Webers that your 4x12 doesn't reproduce. Alnico speakers are different from Ceramic, and that might just be the difference. Then there are the resonances and frequency curves of larger vs smaller cabs.

Over the years, I've also found that Weber speakers are different from other speakers regardless of the model they're using as a reference (of course, that's precisely what one would expect, since the manufacture and the power handling capability is different from what comes in many other cabs).

Different isn't necessarily worse - it's just...not the same thing. All of this stuff is mix, match, keep, discard. It never ends.

Also keep in mind that 2x12s have different resonances and cutoff points than 4x12s simply due to cabinet and speaker interaction. They're really a different beast. I'm sure you're tweaking your amp and pedal settings to account for this, but just in case...a reminder. It's folly to expect a 2x12 to sound like a 4x12, to have the same frequency response, etc. The sound of an alnico speaker is different. The sound of a Weber is different from a Celestion.

I could go on, but I'm sure you already got the point and I'm beating a dead horse here.

"That's pretty much what you do, Les."

"I know, but since the horse is dead, it doesn't hurt the horse. It's not like I'm into S & M."

 

[John F]

Check the screws on the speakers are tight, check the speaker cones are not ripped, check the coil is not separated from the cone, check the cone is not separated from the basket, check the boards in the cabinet are not loose. I’ve seen all these problems.

 

[Alnus Rubra]

"I know, but since the horse is dead, it doesn't hurt the horse. It's not like I'm into S & M."

Stags n Mares ??!

 

[gush]

Check the screws on the speakers are tight, check the speaker cones are not ripped, check the coil is not separated from the cone, check the cone is not separated from the basket, check the boards in the cabinet are not loose. I’ve seen all these problems.

It sounds like a fizzy tone that seems to bloom as guitar dies out.

It does remind me of bad tubes butlike I said amp isn't very old and I don't hear it through the two other cabs I've tried.

 

[John F]

If this cabinet does it and 2 others don’t, the problem is in the cabinet, not tubes. Take the speakers out and check for the items I listed. The coil and cone move at the speed of sound. The magnet and the basket are stationary. Any part of the coil, cone, coil dome cap or flex cone ring that attaches to the basket can pop loose and vibrate. Moving parts against stationary parts can vibrate. Operate the speaker with it out of the cabinet and watch the cone move, it will be obvious both visually and audibly when you find it. Broken glue joints in the cabinet can vibrate, feel the cabinet while it plays to look for the vibrating parts.