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1,905 Posts
Yes, this is because the new tweeter is more sensitive. the noise was there before it was just below the audible threshold... just like @bnae38 said.. you need an L pad to attenuate the output before it reaches the tweeter so you will not hear the hiss when your volume is turned down.. its a PITA i do everything possible to keep my system from doing it.. i cannot stand any humm or hiss.
