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With a few models of my pickups I give a treble bleed. It makes such a difference to how the volume control works. They aren’t for everyone but it’s worth experimenting and finding out if it works for you.
Treble bleed diagram
Pretty simple eh, it just straddles the ‘in’ and ‘out’ legs of the volume pot. Easy to fit, completely reversible and cheap – what’s not to like? Let’s take a deeper look.
A brief explanation of how a treble bleed circuit works and why you need one
With some help from Sammy the dog
Here’s a more wordy explanation:
Have you noticed that as you turn the down your guitar volume you sound gets muddy? Some of the high frequencies are lost.
As the volume goes down so does the clarity. This can, of course, be useful. Quite often you’ll want to be able to take some sparkle off the sound especially with single coil pickups. But with humbuckers for many of us they just get too wooly and undefined at lover volume.
So here’s the solution, it’s cheap and simple, easy to fit and makes humbuckers so much more versatile. It doesn’t take anything away from the full volume sound. I’m talking about treble bleed circuits.
What is a Treble Bleed Circuit?
It’s a simple device that retains treble frequencies. As you turn your volume down some treble can still bleed through.
What do capacitors do?
For our purposes this is all you need to know about capacitors (caps for short). – They allow treble frequencies to pass through them but block bass. The frequencies involved depend on the value of the cap. That’s all we need to know to understand what’s going on here. They’re more commonly used in tone circuits but that’s another story. It can get very complicated, this isn’t the place for that.
The volume control (potentiometer or pot) on an electric guitar looks like this:
It’s a fairly simple device, As you turn the volume down the resistance between the ‘in’ and ‘out’ leg increases. This makes it increasingly harder for the signal from your pickups to get through. Less signal means quieter. That’s what happens when you turn your volume down. It’s very simple and works well except for that treble loss. On some guitars less treble can be a useful (Strats for me) but not always.
Here’s the same thing with our cunning little circuit added:
Where do you put a treble bleed?
This one has the ‘Orange Drop’ treble bleed which has a resistor added to it. This resistor softens the treble as you turn down making the effect more subtle.
What does it sound like?
A you turn down the volume and the the resistance increases there’s an alternative path for the signal. Through the cap. But, as we know, the cap will only let treble through. This means your sound not only gets quieter but also thinner from the treble sneaking through the treble bleed.
As you turn the volume down you’re also turning the bass down. As a result you have a usable single coil (ish) sound when the volume is low. If you’re overdriving an amp the result is cleaning your sound up. So with a high gain amp and your volume at about 1/4 you get a bluesy breaking up sound. Crank the volume on the guitar and you’re rocking.
Treble Bleed values
This really is something worth playing around with. There are a few variations on the circuit but the idea is the same. If you want a less subtle effect just use a 0.001micro farad cap on it’s own. To soften the effect add a 150KOhm resistor in parallel. These values are just common values, play around with them, these are cheap components. You can try a resistor in series too, there are lots of options.
On most of my guitars I prefer a simple treble bleed, no coil taps or series parallel. Just the volume control. This isn’t a mod to use on every guitar, I find with Strats I welcome some tone roll off. But with a 2 volume control set up it may be worth treating the neck and bridge pickups differently.
Then there’s the matter of the 50’s wiring circuit in Les Pauls. With this wiring a treble bleed does very little. The difference between the 50’s wiring and modern wiring is just in how the tone control is wired. It is possible to use both systems on the same guitar. With a Les Paul the neck pickup can be wired with the ‘modern’ circuit and the bridge to 50’s wiring. A treble bleed can be added to the neck pickup to retain treble.
There really are a lot of options here and a lot of experimenting to be done. Remember there really is no right or wrong way to do this despite what you might read on the internet. If you come up with anything fantastic be sure to let me know.
So with a most models of my pickups I give you a bleed circuit or two. If I think it works with that pickup I’ll pop one or two in the box. I know a lot of manufacturers give sticker or a guitar pick for free with their pickups but I give a more practical little gift. It’s great if you use it, quite a few of my customers have tried one for the first time and liked it but even if it isn’t your thing maybe you have a Mate who’d be interested.
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updated July 2025