9V Power Supply for Boss PSA Guitar Pedal DC 9V Power Cord Compatible with Boss PSA-120S ME-80 ME-70 ME-50B ME-25 DB-88 DB-90 GT-1 GT-10 GT-100 AD-10 BR-80 BR-600 CE-2B RE-20 RC-1 RC-3 Guitar Pedals

I needed a power supply for a Boss vocal harmonist that needs a 9V with proper power and polarity.This matched required for the pedal.

Works great on boss distortion box for guitar

Good product for fair price

Fast delivery

I got this for my PolyTune Noir Tuner and it works perfectly, great price as well.

This 9V Power Supply for Boss PSA Guitar Pedal powers my Boss ME-70 and a number of other standard pedals just fine. Obviously, make sure to check your particular pedal as some (like my Boss HM2) take very different adapaters. But for most that use the "standard", this adapter should work and seems to provide decent power from what I can tell. I wish I had the tools to check the power output to see how steady it is, but I'm afraid I don't.

This was advertised for specific Boss devices, but worked fine on my M-VAVE reverb pedal, but I only have one 9v effect pedal to test it on.Please note: If you are not familiar with guitar effect pedals, they use NEGATIVE TIP POLARITY, which is what this adapter has (Boss implemented it, and it has become essentially an industry standard for effect pedals). Most regular consumer electronics use positive tip DC adapters, so make sure to check your required voltage, minimum amperage rating, and polarity if using it for something other than a guitar pedal or the specific Boss products listed.

One can never have enough tip-negative 9v DC power supply wall-warts...this one is a good value and performs as expected. No problems or issues were encountered during my review and I am very glad to have had the opportunity to review it. Recommended!