need help guitar tone kzzzztttt

[lelahel]

is there something wrong with the guitar tone?
http://dl.dropbox.com/u/29226335/intssr.mp3
sounds like there is an unwanted frequency (kzztt), coming maybe from the cab or the guitar
please help!
8 strings guitar with SD blackout pickups
the amp mesa Dual recto 2 ch , cab marshall 1936 V30

 

[lelahel]

a new test with another guitar : ESP LTD MH 400 emg 81pickups 6 strings
http://dl.dropbox.com/u/29226335/intssr2.mp3
which one is better?
and what is this unwanted frequency?and why please
im especting the sd blackout pickups or the strings

 

[ArthurD]

How do you filter your guitars?

 

[lelahel]

HP 80 LP 9.5KHZ