Originally posted by thechicken:[..]
If you have the $$$ and patience batteries are better, as they are much quieter.
If you have a good adaptor and you've not damaged the power cord, there should be no problem.
If you are having grounding issues, that could be the amp or other things too.
Battery issues and drain during a gig are far more trouble than they are worth.
Try a voodoo lab Pedal Power 2. Never failed me. Never had noise problems or tone problems from using it. It can power 8 effects. It can power up to 2 Line 6 multi-pedals (Like the MM4, DL4, DM4...). Nothing but good things to say about the Pedal Power 2.
http://www.voodoolab.com/pedalpower_2.htm
http://accessories.musiciansfriend.com/product/Voodoo-Lab-Pedal-Power-2-Power-Supply?sku=153509