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Buzzkill
Passive isolator for two-amp rigs
$99.00 USD
Ships worldwide · 2-year warranty
✓ Totally passive✓ Gig-bag small✓ 2-yr warranty
Noisy ground loops? Gone.
You run two amps at a gig and get a noisy hum that's never there at home. Patch in Buzzkill and the loop's gone. Passive, gig-bag small.
See it and hear it
Is this for you?
Yes if you run two or more amps and a venue hits you with hum that's never there at home. Not if you run a single-amp (series mono) rig. If that's you and you've still got noise, it's probably something else, so email us at info@goodwoodaudio.com before you buy.
Passive.
No power needed.
No power needed.
Kills noisy
ground loops
ground loops
180° polarity
pushbutton
pushbutton
Gig-bag
small
small
How to connect in your rig
Two amps (stereo)
Out of phase fix
4 cable method
5 cable method
Wet / Dry
Wet / Dry / Wet
Parallel lines
The classic two-amp setup. One Buzzkill right before the second amp's input. The closer to the amp, the better.
01
Patch it in
After your last pedal, right before the second amp's input. The closer to the amp, the better.
02
Kill the loop
Buzzkill keeps one amp galvanically isolated from the other, so the ground loop never forms. Buzz gone.
03
Flip the polarity
Two amps sounding thin or hollow together? Hit the red 180 button and they're back in all their glory.
What players say
★★★★★
"Eliminated much of the hum... board much tidier."
Kevin LT★★★★★
"Built like tanks."
Kevin Janes★★★★★
"They treat everyone like a pro."
Daniel ZimmermanSpecs
| Controls / I/O | TS/TRS ¼" input, TS/TRS ¼" output, one red 180° phase button. Ground is permanently lifted when patched into your rig. |
| Also does | Converts unbalanced TS to balanced TRS and back; flips polarity in a parallel effects chain. |
| Impedance | 10kΩ in / out |
| Enclosure | 93 x 39 x 31 mm (3.65 x 1.52 x 1.22 in) |
| Weight | 120 g (4.2 oz) |
| Power | None, fully passive |
| Warranty | 2 years |
What's in the box
The Buzzkill, plus a Goodwood sticker and pick.
Warranty
2-year warranty. Built with high quality, durable components.
FAQ
Do I actually need one?
Not if you run a series mono rig. Buzzkill earns its place when you run two or more amps and you get ground loops because of it. Occasionally for a 4 cable method rig Buzzkill will help before the amp FX return, which isolates the pre-amp and power amp. One amp and still noisy? It's probably something else, so email us before you buy.
Is lifting the ground safe?
Yes. Buzzkill lifts the signal ground through its transformer, never the mains power ground that's there to stop you getting electrocuted. No cheater plugs, no risk.
How many do I need?
One less than the number of amps you run (in most cases). A two-amp rig? Get one Buzzkill. A three-amp rig? Get two. An 11-amp rig? Get 10.
Does it need power?
No. It's totally passive.
Where does it go?
After your last pedal, right before the second amp's input (or FX return for 5 cable method). Running 4 cable method? Put it right before the amp's effects return if you're noticing extra noise. In this instance I'd recommend emailing us first to troubleshoot other possible causes of noise.
Pairs great with
TS (Mono) Patch Cable DesignerRun Buzzkill in line, built to length
Instrument LeadsFrom your pedalboard out to your amp
AuditionFor 4 and 5 cable method rigs
