9V DC Guitar Pedal Power Supply Adapter - 1.7A 1700mA Center Tip Negative with Noise Reduction Filter - 9 Volt Regulated Pedalboard Power Supply for Effects Pedals

Works good, is for pedals, but is not what i'm looking for

So far NO noise at all.

Besides providing power to the pedal, the best part is the fit of the cord into the pedal. No wiggle and does what it's supposed to do.

Until now. I love the gloss power chord with the velcro storage strap. But Why does the blue light stay on when unplugged?

This power supply was the solution for my TONEX pedal making unwanted noises.

Normally I use 9v batteries to power a pedal as I've found nothing quieter. I do power my always on Zoom B1 ON via mini USB to deliver the required 500 ma it needs. That also kept me from having to use a wall wart. However since adding an AC Tone from Joyo I looked around for a regulated higher power AC adaptor. There are 1 amp (1000 ma) 9v AC adaptors out there, but nothing much more . Between the Joyo and the Zoom I'd be drawing 1100 ma. Luckily, I stumbled upon the Coda which for power, blows the Boss, Planet Waves and D'addario out of the water delivering 1.7 amps of regulated power. So, for example, this one unit will power my Zoom (500ma) + Joyo (600ma) and still have 600 ma left for other pedals. And did I mention it's QUIET, as in battery quiet. Additionally, It comes with the pedal side cord using thicker wire gauges than usual and of good length with the nice touch of a velcro loop gather if you travel with it. The body has the usual warning light and is screwed together instead of being flashed together in one un-openable piece of plastic. There is nothing here not to like. I think I'll write a follow up in a few months to see if it holds up as well as I hope it to. So far though I'm very happy I bought it.

First off, one of my hobbies is making guitar pedals, which I mention to clarify that I'm quite familiar with power supplies.Pedal power supplies convert the AC signal from your wall into a DC signal, but with some residual AC noise. Good power supplies will use large capacitors to filter out this noise to the extent that you can't hear it. Good pedals also use capacitors to filter out such noise. If you hear noise in your signal after trying out a power supply, and you complain to the company who makes the power supply, they will blame it on the pedal. If you complain to the pedal maker, they will blame it on the power supply. In reality, both the supply and the pedal have a duty to provide good filtering.If the price of this supply seems too good to be true, and its size seems too small to actually put out 1700mA, well, I'm sorry to say this, but it is too good to be true. You see, it can pump out plenty of milliamps, but it does not do a good job filtering noise. It's inexpensive and small because they skimped out on the filtering capacitors.If you have a well-designed pedal with a lot of power filtering, you can probably get by with this supply without hearing any noise, but why risk it? Just fork out the extra few bucks and an extra cubic inch to the wall wart and get a good power supply.Overall I think this company should be ashamed for marketing this for audio use. And the good reviews you read are from people who got lucky and had pedals that do extra power filtering. The reality is that this supply is far noisier than literally any other pedal power supply I've used.

Very difficult to find a 9V modern PSU with center negative polarity, high amps (1.7A is great!) and a 5.5mm x 2.1mm barrel plug. I am not using these for pedals, but for the devices I am using this works fantastically. So much so that I had to order three more! I am extremely impressed with the quality as well!