Zuma is a bit of a departure for Strymon in that it is a pedal power supply.
For longer than I can remember, I have been using Voodoo Labs pedal power products. Most recently the Voodoo Labs Pedal Power 4×4. I have 5 of them. One to power the acoustic guitar pedalboard. One to power the small electric guitar pedalboard, one for the mid-sized board and two for the big board.
Zuma will provide nine high-current outputs, each output providing 500mA of current. Although I do not generally test power supplies for tone, I have certainly encountered noise issues with some power supplies and certain pedals. I have a very small pedalboard, a Pedaltrain Nano, and I use a 1 SpotÂ to power that board. But not with my Strymon pedals. Lots of noise using Strymon pedals with a 1 Spot.
Isolated taps and a toroidal transformer help in reducing potential noise which is why the Voodoo Labs units have done so well. They make a quiet and reliable power supply.
Strymon claims that their ultra-low-noise design prevents power noise from bleeding into the audio signal, allowing pedals to deliver their highest possible dynamic range. They will also be selling rails for mounting on Pedaltrain pedalboards as an accessory item — sold separately I’m afraid.
The power supply is coming out in the summer of 2016. I hope to get my hands on one then and see how it compares to the Voodoo Labs products.