Boss ME50 B with power supply. Everything works fine. I bought this about 10 years ago and used it for a couple of years, but I just don't use effects for the band I've been playing in for the last 7 years. It has great sound and is really creates a lot of cool tones. I love the single unit design: not a bunch of patch cables to wrestle with and really can be set up for simple tones or complex processing.