Blackstar ID:CORE STEREO 100 Owner's Manual page 10

7. Treble
The treble control allows exact adjustment of the treble frequencies within the sound.
At low settings (counter clockwise) the sound will be warm and dark in character.
As the treble control is increased (clockwise) the sound will become brighter. At the
maximum settings the sound will be aggressive and cutting. This setting is saved
when you store a patch.
8. ISF
The patented ISF control allows you to choose the exact
tonal signature you prefer. Fully counter clockwise has
a more American characteristic with a tight bottom-
end and more aggressive middle, and fully clockwise
has a British characteristic which is more 'woody' and
less aggressive. This leads to a very familiar, musical
response. This setting is saved when you store a patch.
9. MOD (Modulation)
Press this switch to turn the stereo modulation effect on, off, or focus the effect for
editing. This setting is saved when you store a patch.
10. DLY (Delay)
Press this switch to turn the stereo delay effect on, off, or focus the effect for editing.
This setting is saved when you store a patch.
11. REV (Reverb)
Press this switch to turn the stereo reverb effect on, off, or focus the effect for
editing. This setting is saved when you store a patch.
For all three effect switches/buttons, the LED shows what state the effect is in:
LED
LED not on
LED red
LED green
Repeatedly pressing each effect switches on the front panel has the following effect:
Current Effect State
Effect off
Effect on but not 'focused'
Effect on and 'focused'
NOTE: Only one effect may be 'focused' at any time.
10
Effect State
Effect off
Effect on but not 'focused' for editing
Effect on and 'focused' for editing
Next Effect State
Turns the effect on and 'focuses' the effect. Any previously focused effect
reverts to an 'on' state
Focuses the effect. Any previously focused effect reverts to an 'on' state
Turns the effect off. If any other effect(s) are on, the previously 'focused' effect
resumes being 'focused'
USA
Description
Effect not active
Effect is active, but not affected by the front
panel effect controls
Effect active and affected by the front panel
effect controls
UK