MXR Mr. Talkbox Signature Talk Box

The MXR Mr. Talkbox Signature Talk Box is a talk box pedal from MXR, developed with Byron "Mr. TalkBox" Chambers. A talk box sends your instrument's signal up a tube to your mouth, and the shape of your mouth turns that signal into vowel and consonant sounds that a microphone picks up, so the instrument appears to speak or sing. Unlike older talk boxes that need to be driven by a separate amplifier, this pedal comes with its own amp and speaker driver built in, like the earlier M222 MXR Talk Box¹.

MXR positions it as a professional-grade talk box tailor-made for keyboardists and guitarists who want to speak through their instrument². It is based on the MXR M222 Talk Box, with a bigger amplifier, a lighter driver, and extra controls for shaping the voice³.

Who is Mr. Talkbox?

Byron "Mr. TalkBox" Chambers is a Grammy-recognized artist whose talk box talents, in MXR's own words, "have lent unmistakable, expressive power" to a wide range of music². Gearnews described him as one of the most accomplished talk box performers, and reported that MXR teamed up with him to develop the pedal³.

The signature model is a gold-finished unit announced in August 2026, when MXR opened pre-orders³.

The controls

The pedal keeps the control set of the M222 and adds gain shaping. MXR says the Tone control retains the musical tilt EQ response of the M222 but, along with the Gain control, takes on a more aggressive voice when cranked¹.

The Mute switch matters for live use: with it engaged, your dry pedal output is silenced and the signal goes only to the tube, so the audience hears just the talk box line through your microphone rather than both at once².

Power and connections

The pedal draws 1.8 A, a figure MXR lists in its specifications². That current draw is far above what a typical pedalboard supply delivers, so plan on powering it from its own included adapter rather than sharing a supply with ordinary pedals.

Connections are simple²:

• INPUT jack receives your instrument signal, guitar or keyboard.
• OUTPUT jack sends a buffered effect signal to your amplifier.
• VOICE TUBE INPUT receives the included tube, which carries the effect signal to your mouth.

In the box you also get a mic stand clip for the tube and an 8-foot tube². The enclosure is compact enough to fit on a desktop or pedalboard, and MXR describes it as ruggedly built yet lightweight¹.

How it differs from the M222 Talk Box

The Mr. Talkbox Signature Talk Box is based on the MXR M222 Talk Box³. The signature model keeps that self-contained design but upgrades the internals, with the internal amp raised from 10W to 25W for increased headroom and improved dynamic response³¹:

• The amplifier was upgraded from 10 W to 25 W, which MXR says gives increased headroom and improved dynamic response²¹.
• The driver was swapped from ferrite to a lightweight neodymium driver, which MXR says allows a bigger driver for better handling of the low end¹.
• Gearnews reports the pedal offers twice the headroom of the original, thanks to 18 volts and the 25-watt preamp³.

MXR describes the result as more power, more headroom, more control over your voice, and better articulation of each vowel and consonant over a low end that stays thick and full¹.

Price and availability

The list price is $449.99 USD⁵. When pre-orders opened in August 2026, Gearnews reported the same $449.99 pre-order price in the US, alongside £387 in the UK and €449 in Europe³.

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