#2
Go for the DC-10 Power Bank.
That "UK 9v Power Supply for use with Mor..." one would be fine but would only power 1 pedal.
With the DC-10 you can power 10 for only ~£15 more. Good deal!
404: Sig not found.
#4
Ah, fair enough!

Being on a music site, I would imagine it is, but just email them to check it's negative center.
404: Sig not found.