SWR working pro 12 speaker problem

[banjo5]

I have a SWR WP12 that I use as my practice amp. Recently it started making a wierd noise when i play certain frequencies, especially while i'm slapping or playing percussive ghost notes. Its kind of a clucking, "wok, wok" almost wahwah kind of thing. My guess is, the speaker is smoked, which is a little surprising, since I only play it at about half throttle. So my question is, is there any way to test it, and more importantly, what would be a good replacment for it?

 

[B-string]

You might want to try an instrument cable to loop the effects send to effects return jacks. It may just be corrosion in the effects return jack.

 

[playswhatpays]

Yes, it's the speaker. The stock 12 is well, iffy at best. After throwing a Eminence Delta Pro in mine, it's a completely different animal; in a very good way. The power amp will start choking on the lows when the speaker still has miles to give. Sing's the B nicely.

 

[RickenBoogie]

Just fyi, there's no way to accurately know that you're "playing at half throttle". The position of the knobs has no bearing on how much power you're using. Always use your ears.