E Bow article
E Bow Explained: Features, Types and Tips
A small handheld device that coaxes a single guitar string into a long, sustained, almost vocal tone, purely through magnetism.
There is something quietly appealing, to anyone who spends their time thinking about bowed strings, about a device that recreates the idea of a bow without any horsehair, rosin or physical contact at all. The E-Bow does exactly that for the electric guitar: a small handheld unit that coaxes a single string into a long, sustained, almost vocal tone, purely through magnetism.
What an E-Bow actually is
It's a small, battery-powered device that a guitarist holds over one string to make it vibrate continuously, without picking or plucking at all. It contains an electromagnet and simple circuitry, and it works by feeding a gentle, oscillating magnetic field into the string, which keeps that string moving for as long as the device stays correctly positioned. The result is a note that can sustain far longer than any picked or plucked string ever could — closer, in spirit, to a bowed instrument than a plectrum.
How the sustain is actually produced
It helps to understand what the device is not doing. It is not creating amplifier feedback, which relies on the interaction between a loud amplified signal, the pickups and the room. It works locally, at the string itself, through magnetic coupling, which is why it can produce a controlled sustained tone even at a modest, unremarkable volume. Move it away from the string, and the sustain simply stops, cleanly, without any of the unpredictability of true feedback.
A little history
The device was invented by Greg Heet in 1969, though it took roughly seven years to reach the commercial market, appearing publicly at the NAMM trade show in 1976 under the name Heet Sound gave it. It arrived at a moment when guitarists were actively searching for new textures beyond the usual pick-and-strum vocabulary, and a device that could imitate something of a bowed string's patience found a natural home in that experimentation.
Standard mode and harmonic mode
Most modern units, including the E-Bow Plus, offer two distinct modes. Standard mode favours the fundamental note, giving a smoother, rounder sustained tone well suited to drones and restrained melodic lines. Harmonic mode instead emphasises the upper harmonics, producing a brighter, more overtone-rich sound that can cut through a denser arrangement, though it can turn harsh on a very bright pickup or with heavy distortion layered underneath it.
| Mode | Character | Suits |
|---|---|---|
| Standard | Smoother, fundamental-led | Drones, pads, restrained melody |
| Harmonic | Brighter, overtone-rich | Climactic moments, cutting through a mix |
Where you may already have heard one
The E-Bow's sustained, bowed quality found its way into a surprising amount of recorded guitar music from the 1980s onward, associated with artists including Big Country, U2 and Blondie, and later cited in work by Radiohead and R.E.M., whose 1996 song even borrowed the device's name for its title. It's worth treating some of these attributions carefully — a similar sustained texture can sometimes come from other sources entirely — but the device's fingerprint, once you know to listen for it, is genuinely distinctive.
What it needs from the guitar
The response you get depends heavily on the instrument underneath it: pickup type and height, string gauge, action, and how much gain your amplifier is running all shape the result. A neck pickup tends to give a rounder, more vocal tone, while a bridge pickup produces something brighter and more cutting. None of this is a fault of the device — it's simply a reminder that, like any acoustic or bowed instrument, the sound is a product of the whole system, not a single component.
Not quite a bow, not quite feedback
As someone who spends a good deal of time thinking about actual bowed strings, I find the comparison instructive rather than literal. A real bow varies pressure, speed and contact point continuously, producing a living, breathing tone that no electromagnetic device fully replicates. What the E-Bow offers instead is something genuinely its own: an electric guitar's take on patience and sustain, built from magnetism rather than horsehair. If you're weighing up whether it's worth adding to your own playing, our buyer's guide covers what to consider before buying one.
The bottom line
The E-Bow remains a small, unusual, genuinely useful tool nearly fifty years after its invention — a way for an electric guitar to borrow the patience of a bowed instrument without ever touching one. If you're completely new to the idea, our beginner's guide is a gentle place to start, and our list of common mistakes to avoid will save you some early frustration.
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