SuperChamp XD and tube rattling?

mambosun · #1 01-21-2012, 11:44 AM

I start to be a bit irritated by a rattling coming from the amp everytime I hit the low G note as well as the same G at the octave above.
This happens when playing my jazzbox (Samick JZ4+ Bartolini floater) on the clean channel, at very moderate level and after a while of practising.
This rattling seems to come from the tube (s).

Any suggestion?

willtheguitardude · #2 01-21-2012, 12:38 PM

Hey dude, I have the same problem. I also have the Fender Super Champ XD. While I like the tone, I feel it feeds back a little to much. Really great for rock, but I am mostly a Jazz man, so, I would like some suggestions to.

kenbennett · #3 01-21-2012, 02:00 PM

Could be the tube itself. Could be the spring thing that is supposed to keep the tube snug in it's socket. Could be the socket, although that usually causes more of a signal distortion than a mechanical rattling.

hallpass · #4 01-21-2012, 02:34 PM

See if you can identify exactly where the rattle is coming from. Could be something like a loose screw in the cabinet. If it's a tube, there's only 3 tubes, so it shouldn't be too hard. With the amp off, make sure each tube is in securely. You can also gently tap them with the eraser side of a pencil to see if they make any noise when tapped.

I haven't had this issue with my SCXD and I've done a bunch of restaurant jazz gigs with mine, as well as many rehearsal in both jazz and rock.

mambosun · #5 01-21-2012, 06:25 PM

Quote:

Originally Posted by martinopass

See if you can identify exactly where the rattle is coming from. Could be something like a loose screw in the cabinet. If it's a tube, there's only 3 tubes, so it shouldn't be too hard. With the amp off, make sure each tube is in securely. You can also gently tap them with the eraser side of a pencil to see if they make any noise when tapped.

I haven't had this issue with my SCXD and I've done a bunch of restaurant jazz gigs with mine, as well as many rehearsal in both jazz and rock.

Thank you all.
I'll tried the tapping trick (tubes cold) and they seem to be firmly seated. I still have to try this with amp is on, while playing the "culprit" notes (not easy to do).
I had this rattling a few weeks after purchasing it, hence I already checked all screws and tightened them all, eventhough I didn't find any really loose ones.
Usually rattling issues comes with bass notes/ frequencies, more prone to vibrate, but this happens with Mid G note too (10th fret/ 5th string).
Since my amp is still under warranty, I wonder if this could justify to send it back to the shop for repair.