Hi! I currently have a sweet pedal board with all the essential effects and I currently do enjoy them. But I decided to add Boss Gt-1000 Core multi effect so I can use the entire board itself as a stand-alone recording machine(with amp/cab sim from gt-1000 core) The power specs for Gt-1000 Core is... Power supply AC adaptor Current draw 670 mA and the rear of the effect is... It does say "Use Roland PSB 1U Adaptor Only" If possible, using a single PSU, I would like to power 1. VOX V847A Wah 2. TS9 MINI (tube screamer mini) 3. MXR Super Badasss 4. Keeley Caverns Reverb/Delay 5. MXR Vintage Overdrive 6. Tc Electronics Forcefield Compressor 7. Boss Gt-1000 Core form numbers 1~6, until now I never used a PSU, but a 1spot adaptor which can apparently power up to 21 pedals. (but it is only 9v DC) is it just better to use a separate Power source for the "pedals" and Gt-1000 core or is there a way to combined the power source for both the pedals and Gt-100 core? Thank you so much I always learn so much from all of you.