Chellee Sir Robin Overdrive

The Chellee Sir Robin Overdrive is a hand made in the USA overdrive pedal built on the Blues Breaker circuit, the same design that inspired the Marshall Blues Breaker. Delicious Audio's Paolo De Gregorio described it as "a Blues Breaker based overdrive with expanded voicing options and exceptional build q[uality]," calling it a "Bright versatile overdrive."¹

Controls and voicing

Where a stock Blues Breaker style pedal gives you a single tone control, the Sir Robin expands the EQ with three voicing tools¹:

Tone and Presence controls for flexible EQ shaping
A Fat switch for a thicker voicing option¹

That extra voicing range is the main way the Sir Robin sets itself apart from the circuit it borrows, letting a player dial between brighter and fuller settings without leaving the Blues Breaker family¹.

Power and bypass

The Sir Robin runs on a 9 to 18V 2.1mm DC adapter and draws approximately 9.3 mA, a light load that any pedalboard supply output can handle. It is true bypass, so the circuit drops out of the signal path when the pedal is off.¹

The pedal's power requirement is a 2.1mm DC adapter, so check your supply's plug size and polarity before adding it to a board.¹

What reviewers said

Delicious Audio's review paired the pedal's sound with its construction, noting "very low noise and unparalleled reliability from exceptional build quality."¹ The Blues Breaker lineage itself is well established: Aion FX describes circuits of this type as "derived from the Marshall Bluesbreaker overdrive circuit."²

Chellee's wider overdrive range includes the Ponyboy Overdrive V2, a Klon inspired design, and the Odie Classic Overdrive, both covered on their own pages.

Videos

**Chellee Sir Robin Overdrive Pedal - Made in the USA**
intheblues

**Chelle Guitars and Effects Sir Robin Overdrive**
Delicious Audio

Questions

Is the Chellee Sir Robin Overdrive true bypass?

Yes. Delicious Audio lists the Sir Robin as true bypass, so when the pedal is off, your guitar's signal passes through without going through the overdrive circuit. That helps keep your clean tone untouched on a pedalboard, especially if the Sir Robin sits alongside other always-on effects.

Does the Sir Robin Overdrive take a battery?

The pedal requires a 9 to 18V 2.1mm DC adapter and draws approximately 9.3 mA. Delicious Audio's listing specifies a DC adapter rather than battery power, so plan on a standard center-negative supply or an isolated output on your pedalboard power supply.

What does the Fat switch do on the Sir Robin?

The Fat switch is part of the Sir Robin's flexible EQ voicing, alongside its Tone and Presence controls. It gives you a thicker voicing option on top of the standard tone shaping, which is one of the ways the pedal expands on the original Blues Breaker formula it is based on.

Where is the Chellee Sir Robin Overdrive made?

The Sir Robin is hand made in the USA by Chellee. Delicious Audio's review highlights the build quality as exceptional, pairing it with very low noise and what the reviewer called unparalleled reliability.

What warranty does the Sir Robin Overdrive have?

Chellee covers the Sir Robin Overdrive with a two year limited warranty, according to Delicious Audio's product page. That is worth knowing if you are comparing hand built overdrives, since warranty terms vary quite a bit between small builders.

Sources (2)

Chellee Sir Robin Overdrive, Delicious Audio, 2017-06-21
Xiphos Amp Overdrive / King Tone Heavyhand, Aion FX, 2022-05-13