Can't hear the ISF on my Series One 1046L6

[leatherskin]

I just got my Series One and it sounds really good, except I can't hear a difference when I adjust the ISF knob. When I listen to the Blackstar video I can hear the difference but I don't hear it on my amp. Can anyone suggest a particular settting where the sound difference would be obvious to me? I am using an LTD EC-1000T guitar.

[Distortion Dave]

It should be pretty obvious all the time. Maybe most obvious when your quite distorted as on 0 you should have a tight distortion and on 10 it should be hollow and flubby. If you can't tell the difference in that situation something is definitely wrong.

[majikmojo]

also ISF works in conjuction with the eq controls - try adjusting the mids along with it...you should hear the difference
easily

[vbshredder]

yeah, what majik said - i believe its more prominent the higher your mids are - do you have them scooped?

[josephsandordold]

Hi there!, yes the more you turn down the mid knob the more isf you will be able to hear.

[vbshredder]

^^^^ ah ok i thought it was the opposite - honestly its always worked for me so never really checked.

[leatherskin]

Well I finally tried the suggestions and I could hear the difference with the mids down. When I turned it up it was harder for my untrained ears to hear the difference.