#1
i been have this problem for quite sometimes now but i just cant find a way to fix this.

My amp make a rly weird rinigng feedback when i play a certain note (it sound just normal) but then when i hammer on the note next to it, i got some weird ringing feedback seem like the 2 string are hitting against each other. If i play same note was making the rigging before but this time just ONLY play that note then everything is just fine.

The weird thing is it only happened around the 12th fret area in 2 bottom string.
Bedroom Set up:

ESP LTD EC-400 with 81/60 EMG
Yamaha SJ550HR, 1980's Strat (rare guitar)
Crate v18
Digitech Bad Monkey
Vintage 30 Speaker
Metal Muff

Saving up for ESP Uruha's Signature Guitar
#2
It's probably a combination of bad technique/too much gain.

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THE ARCHITECT σƒ τλε τρπ βπστλεπλσσδ

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drone/doom/post-metal: http://theygrieve.bandcamp.com
#3
it definitely not bad technique since i been doing it for over a year and too much gain doesn't explain why it only happened around 12th fret
Bedroom Set up:

ESP LTD EC-400 with 81/60 EMG
Yamaha SJ550HR, 1980's Strat (rare guitar)
Crate v18
Digitech Bad Monkey
Vintage 30 Speaker
Metal Muff

Saving up for ESP Uruha's Signature Guitar
#4
If you've been doing it incorrectly for over a year, then it could still be bad technique. I'm not criticizing you, just giving you ideas on how to go about solving it. Try pressing a lot harder on the 12th fret - when you hammer on, it's much weaker.

The 12th fret is the easiest to get natural harmonics from, so if you have too much gain your notes won't sustain as long and it'll turn into feedback fairly quickly.

╠═══════╬═══════╣

THE ARCHITECT σƒ τλε τρπ βπστλεπλσσδ

╠═══════╬═══════╣



drone/doom/post-metal: http://theygrieve.bandcamp.com
#6
nah, i dont think i do it wrong cause i have an micro cube before and i never have this problem.

I also discover something, when i hit fret 10 on lowest string then hammer on fret 11, i hear very bad rigging feedback but if i hit on fret 7,8,9 and hammer on fret 11 then it would work just fine....

is it possible that my guitar is the problem
Bedroom Set up:

ESP LTD EC-400 with 81/60 EMG
Yamaha SJ550HR, 1980's Strat (rare guitar)
Crate v18
Digitech Bad Monkey
Vintage 30 Speaker
Metal Muff

Saving up for ESP Uruha's Signature Guitar
#7
Have your guitar checked out by a luthier. Sounds like you might need a set up.
Quote by sargasm
There are no genres in metal that end with "core."
#8
record clips of the phenomena.

I don't know what the hell you're talking about.
#9
the thing when it first started to notice it, i did bring it to a luthier, he took it in but he didnt mention anything about it. When i take it back, same thing happened....
Bedroom Set up:

ESP LTD EC-400 with 81/60 EMG
Yamaha SJ550HR, 1980's Strat (rare guitar)
Crate v18
Digitech Bad Monkey
Vintage 30 Speaker
Metal Muff

Saving up for ESP Uruha's Signature Guitar
#10
Quote by imgooley
record clips of the phenomena.

I don't know what the hell you're talking about.


I have to agree with this... I was reading your post going: "Uhhh... what??"

Quote by zerocrack
the thing when it first started to notice it, i did bring it to a luthier, he took it in but he didnt mention anything about it. When i take it back, same thing happened....


So you took it in about an issue, then didn't tell him about the issue and hoped he'd find it?
Quote by sargasm
There are no genres in metal that end with "core."
#11
i did tell him. he test the guitar with no gain and there was absolute np with it but he said the guitar need some adjustment and hopefully fix whatever the hell i was talking about, but it still the same

i uploaded it quite back on media fire but the site is down and will be back up in about 15 mins

http://www.mediafire.com/?jk2qzzmr04m
Bedroom Set up:

ESP LTD EC-400 with 81/60 EMG
Yamaha SJ550HR, 1980's Strat (rare guitar)
Crate v18
Digitech Bad Monkey
Vintage 30 Speaker
Metal Muff

Saving up for ESP Uruha's Signature Guitar
Last edited by zerocrack at Jan 13, 2009,
#12
Possibly a microphonic preamp tube (Try changing the gain stage preamp tube)
Possibly microphonic pickup (Usually removing a pickup cover will remedy this)
#13
so change pre amp tube might fix it.

what is pick up cover?

any other idea?
Bedroom Set up:

ESP LTD EC-400 with 81/60 EMG
Yamaha SJ550HR, 1980's Strat (rare guitar)
Crate v18
Digitech Bad Monkey
Vintage 30 Speaker
Metal Muff

Saving up for ESP Uruha's Signature Guitar
#14
I'd try another guitar on your amp...if you get the same results its your amp (most likely a preamp tube)...try your guitar on another amp...if you get the same results its your guitar (most likely needs truss rod adjustment).
#15
If you didn't have the problem until you got the new amp, and your luthier/guitar tech didn't notice anything when he played the guitar...

It's probably the amp...and more specifically one of the preamp tubes. Just do what eybanez said.
Gear

Gibson '57 Les Paul Reissue
Marshall TSL 601
EHX: Big Muff, Metal Muff, Small Stone, POG, 2880
Ibanez TS808
Voodoo Labs Microvibe
Analogman Chorus
Morley Bad Horsie II
Keeley Compressor (C4)
Nova Delay
MXR 10-band EQ
Last edited by Guitartist at Jan 13, 2009,