SWR 210T issues help!

[Anemic_SluG]

OK so I bought a 2x10T SWR workingmans cabinet. I played though it in the store everything sounded allright. I got it, so I didn't have to lug my big cabinet around for practice.
So I get it home hook it up and now 2 wierd things happen and I hope someone can shed some light on this.
When I play a A note and let it sustain, only the A it has a distortion sound like a bad speaker. I can hammer the E all day long but just when I hit a A it sounds a little fuzzy. 2 everything will be going allright and then suddenly pop, crack pop an electronic sound comes busting through, I hold the strings or start playing and it goes away.

Can a bad crossover in the cabinet be causing all of this, and even stranger it didn't do any of this in the store. I used a little adapter to lift the ground and it was better but it still did it. It sounds fine when everything is rolling but man those 2 things are annoying so I would like to fix them.

James

[Von Felgenhauer]

the horn in my 115 workingman had a horrible horn. im assuming your horn has a 3 way selector that you can turn off? try turning the horn off and seeing if that helps

[Anemic_SluG]

Yeah played with that as well.... It's weird how you can be playing along and everything sounds great and then poof, electronic pops and snaps and a fuzzy A.

[BassmanPaul]

Sounds more like an amp issue to me. What are you using. If you are unsure of the cabinet and you just bought it it'll have a warranty. I'd return it for an exchange.