#2
it makes the quiet notes louder, and the loud notes quieter.

basically, it balances out the volume of all the notes you play to make it more even/consistant.
#3
okay, one other question that has nothing to do with compression.

I am running a tubescreamer into an already driven valvking and the boss NS-2 isnt really cutting down the hum. would the ISP Decimator do a better job because iv heard good things about it
Guitars-
Schecter S-1 Elite
Fender MIM Strat
Epiphone SG Faded
Epiphone Sheraton II

Amps-
Peavey Valveking 212

Pedals-
Dunlop CryBaby
Boss NS-2
Ibanez Tubescreamer TS9

CHECK OUT MY BAND AT http://www.myspace.com/noneofusalone
#4
What settings do you have on your NS-2 currently? Also have you tried putting it in a different place in your effects chain?
Gear:
Epiphone SG Standard - Natural Wood Finish + SD Alnico Pro 2 Bridge Pickup
Epiphone Les Paul Standard - Limited Edition Green
Ibanez S470
Blackstar HT-100 Head
Harley Benton 2x12 Vintage 30's
Vox AC4TV
Vox VT15
#5
the settings are on reduction, decay on 0-2, threshold on 9-10, and my set up is

Valveking-Boss NS-2-Ibanez tubescreamer-Dunlop Crybaby-guitar
Guitars-
Schecter S-1 Elite
Fender MIM Strat
Epiphone SG Faded
Epiphone Sheraton II

Amps-
Peavey Valveking 212

Pedals-
Dunlop CryBaby
Boss NS-2
Ibanez Tubescreamer TS9

CHECK OUT MY BAND AT http://www.myspace.com/noneofusalone
#6
Sorry I forgot to ask. Whats are the settings on your amp? (just gain and volume pretty much) Too much gain/volume and I have found the pedal sometimes gets overwhelmed. But try swapping around the effects chain though, it might be something with that.
Gear:
Epiphone SG Standard - Natural Wood Finish + SD Alnico Pro 2 Bridge Pickup
Epiphone Les Paul Standard - Limited Edition Green
Ibanez S470
Blackstar HT-100 Head
Harley Benton 2x12 Vintage 30's
Vox AC4TV
Vox VT15
#7
well i have tried pretty much every possible combination and everyone sounds like ass or has too much hiss. and my amp settings are gain 8-10 and volume usually 2-3
Guitars-
Schecter S-1 Elite
Fender MIM Strat
Epiphone SG Faded
Epiphone Sheraton II

Amps-
Peavey Valveking 212

Pedals-
Dunlop CryBaby
Boss NS-2
Ibanez Tubescreamer TS9

CHECK OUT MY BAND AT http://www.myspace.com/noneofusalone
#8
Well my guess is that you have your gain up too high for the pedal to combat it. So the ISP will probably be better for your needs, try it first though, most stores have valvekings out to try so hook up the ISP dial in your settings on the valveking and see if it cuts it out. If it doesn't then it probably isn't worth getting another pedal for it to just not work you know.
Gear:
Epiphone SG Standard - Natural Wood Finish + SD Alnico Pro 2 Bridge Pickup
Epiphone Les Paul Standard - Limited Edition Green
Ibanez S470
Blackstar HT-100 Head
Harley Benton 2x12 Vintage 30's
Vox AC4TV
Vox VT15