What an awesome sounding project. I've got 3 options. They're not the fanciest, but I'd love to try this out.

PC:
cpu: core i5-650, dual core 3.2ghz
gpu: evga gt 730 2gb
ram: 8gb ddr3
OS: windows 10 (Primary) / Ubuntu
Browser: Chrome/explorer (Windows) / Firefox (Ubuntu)

Macbook Pro:
cpu: core i7-2365QM, 4 core 2.0ghz
gpu: integrated Intel HD Graphics 3000 512 MB
ram: 8gb ddr3
OS: OSX 10
Browser: chrome / safari

Iphone 5s

Thanks!