All 67 Audio devices use  standard 9v DC adapter with a negative ground (center negative). 

2.1mm barrel-type jacks (Boss/Roland type).

I highly recommend using a good quality DC power supply with isolated DC outputs, and discourage use of daisy-chains.

NO.

As it is a 21st century, and 9V batteries are not practical. 

In most cases, they contain heavy metals and acid, and are bad for environment.  

They are unreliable and can leak and damage your  beloved 67 Audio or other pedal.

And the greatest reason on this list:

No battery means more room for bigger circuit boards inside your pedals.

As due to laws of physics, positioning and spacing of electronic components on a circuit board inside audio device, does have impact on sound and performance of device. Which is like the ultimate reason to avoid batteries. 

• Check your signal cables.
• Check your ears!
• Check your power supply. 
• There’s a fault in your chain.
• Disconnect your pedals, plug your guitar directly into amp input.
• Check your speaker connections. 
• Locate the problem in your signal chain by eliminating all the variables one-by-one.
• Have you tried turning it off and on again?
• Is it plugged in?

• Check your signal cables.
• Check power cables. 
• Get help.
• Swap another pedal in that place.  
• If another pedal is not working, then you know the problem is either the power or signal cable and not the pedal itself. 
• Always troubleshoot in a logic order. 

Not are DC adaptors and/or power supplies  are equally good. Most universal adaptors which may seem to have suitable voltage and current requirements for use with your pedal/s, are not regulated. That means they are not suited for use with FX pedals and will result in poor performance, huminng/hissing, overheating. Use only good quality power supply designed for FX pedals. 

You probably exceeded your power supply’s current limit, and now your power supply is not providing your pedals with enough juice. As circuits inside pedals drain current even when FX bypassed, result could be audible hum or hiss. Try disconnecting your pedals one-by-one until hum stops.

Most pedals have diode for polarity protection, aaand chances are it’s burnt. Even more damage could occur in some cases, and especially with digital pedals… But hey, everything can be fixed… You can contact me anytime for more information. 

(Visit  INFO)

There is no best…or the right way…or wrong. Your ear should tell you what’s best signal chain in the universe… Don’t listen to anyone but yourself…and old people.

Reference only:

Guitar – COMPRESSION-WAH-FUZZ-BOOST-OVERDRIVE-DISTORTION-MODULATION-DELAY-REVERB-VOLUME PEDAL to your amp…just for a starting point.

YES!

See the INFO, or mail me at: info@67audio.hr

DHL express or Croatian Postal Service registered (you get a tracking number).

Loads of Gin-Tonic and pizza to keep me in working order.

They are all handcrafted. 

From drilling and hand-painting the enclosures, soldering every component – to testing and playing every single pedal. Every step of the way – 100%  my blood, sweat, tears and some other parts and components hahahahaha.  

It’s possible…give us a shout for more details. (see INFO)

Every 67 Audio pedal comes with limited lifetime warranty*