Buzzy Semi-Hollow acousticly

[RockDC]

Just got a Gibson es333. Great guitar but I have one issue. The guitar buzzes when I use the A string. Worse open but pesent when fretted. Thought it was the brigde so I replaced the A string saddle and it's just as bad.

I play the action low and decided to raise it and didn't work. Finally I re- adjusted the neck bow and didn't change still.

So is it frets? Nut? Bridge? It is slightly audible in the amp.

[cdntac]

Many semi or hollowbody guitars will have a buzz --- but it's not the bridge or the strings that is causing it.

The wires inside will sometimes cause a buzz-like sound. You can only hear this acoustically though.

Whether the wires move a tiny bit...I dunno. But my Byrdland will make a buzz/vibrating noise every now and then and only on certain notes. I can't hear it through the amp though.

If I reach inside the f-hole and give the wires a very little pull it will often stop.

Perhaps they are vibrating up against each other...not sure.

Not saying that this is the source of your problem or not but it's something to consider.

[Guitar Whiskey]

It could be the saddle retainer wire or any of the other saddles as well. If you have another bridge, try swapping bridges and see if it goes away.

[travisvwright]

My semi sympathetically resonates on a high E pluck but also on a B string 5th fret, so you know it's the frequency itself that is resonating (also it's rather musical). Since yours only happens on one string, but at a lot of different frequencies (frets) I'd suspect it's something specific to that string.

Here's what I'd do (and have done) loosen the string and move it. Then take clear nail polish and paint every part of the bridge for that string, saddle intonation screw, retaining wire etc. Let it dry then try again. If that doesn't fix it have someone else pluck the string and start holding things. Set your finger on the tuner, nut, (check that it isn't touching the pickup I've done that before) bridge, tailpiece, volume pots, output jack etc.

ETA: a buzz on my martin ended up being the tuner so don't leave that out.