Floppy woofer... Help?

[somegeezer]

I've recently bought a GK 1001RB-II head and paired it with an 8ohm Laney NX410. Just playing it last night I noticed one and only one of the woofers on the cab seems to pulse a lot even after I mute the string. It's quite low but I can hear it flap. Wondering if it's a fault anyone has experienced before and if they could clue me up on what it could be and how to fix it. Thanks for any advice given.

 

[somegeezer]

bump - Just would really love the help from you guys.

 

[JackANSI]

You need to check that speaker out, front and back. Remove it from the cab and look for tears on the surround, cone, and spider. The only time I ever ran into anything that could be called a "speaker that flaps" it required replacment. Depending on the speaker it can sometimes be reconed or repaired, but its usually easier to just replace the driver if it needs it.

 

[somegeezer]

Spider? Heard of surround and cone. What is this spider? What else apart from tears could it be? There is no visible tearing on the outside. I think I'll hear my options before taking this thing apart though. I don't want to make something worse.

 

[JackANSI]

The spider is the part behind the cone that keeps the voice coil in proper alignment. It looks like a yellow/orange beefed up version of the surround.

http://www.colomar.com/Shavano/recone.html

 

[somegeezer]

Reading that I basically get that the speaker is dead. I just bought this thing brand new.

 

[uglyrumor]

Should be under warranty, then. Make them ante up!