The first is a mechanical or "guitar fret" buzz from high frets or very low action on a guitar where the frets haven't been leveled on the guitar fret board. This kind of guitar buzz rarely translates through an amp.
My friend Curtis called me when he discovered the cause of a recent "mystery guitar buzz" thought to be in his guitar
but instead when he switched off his "push-on" style knob in his music
studio to operate on the dimmer lights the "buzz" disappeared. He asked
if I knew about that. Sure I knew about it. Sometimes we forget to share
information with our friends until they jog our memory. Thanks Curtis!
Now that you reminded me of the buzz. Musicians have a lot to deal with
during performances: club owners, equipment failures, another band
playing on their stage tonight because someone double booked etc. It
also reminded to to share some solutions with my guitar playing friends
to make their lives a bit easier.
The second type of guitar buzz is an "electronic or electrical guitar buzz" from extraneous and malfunctioning electronics, poor ground circuits, loose guitar ground wire and variable resistor switches. These inline with the circuit the amp is plugged into can wreak havoc. For this problem solver we'll concentrate on the most common forms of electrical buzz that drive musicians crazy.
What Curtis discovered was how a rheostat acts in a circuit with a
guitar amp. What is a "Rheostat"? Simply, a device used to regulate an
electric current by increasing or decreasing the resistance of the
circuit. Some common uses of a rheostat are to dim stage and room
lights, to control the speed of an electric motor. They are used to
control the volume of a "house" sound system. It's usually in the form
of a push-push on-off wall light control button in place of a light
switch. They are used to lower the lights in a room,club, on-stage,
in-studio and drive musicians crazy. Armed with this information you are
now more prepared to do something.
Some solutions: Calm down. Think. Get your heavy duty extension cord.
Look for alternate sources of power in the room. You're looking for an
isolated output, ensuring that any electrical noise and interference
present on the incoming power supply is filtered out. Try each outlet
until the buzz is gone in which case you are no longer in the circuit
with the problem. If you still have a problem check to see if you are
using a three prong plug. That is important. Most of all you need a good
ground. Therefore be sure you have all three prongs working due to any
ground issues
Another effective solution to use is a "power conditioner".
Why? First of all, it has an isolated output, thereby ensuring that any electrical noise and interference present on the incoming utility supply is filtered out. Simply put, a "power conditioner" is used for surge protection and noise filtering. The rig I use has an amp top mounted 3 space rack. There is a power conditioner in one of the spaces (see photos below). As a result if you use a power conditioner or try all of the above solutions something is bound to go right!
Buzz Kill - There Are Two Kinds Of Guitar Buzz......]
Since power line conditioners provide effective and reliable protection
against voltage fluctuations they clean up line disturbances. They
deliver an enhanced level of power protection consequently referred
to as a ‘CLEAN’ supply. - See more at: Power Conditioners
Your guitar needs an isolated output, hence ensuring that any electrical
noise and interference in the area on the incoming power supply is
filtered out. Kill your guitar buzz.
