Behringer B-TRON Envelope Filter Vintage Auto-Wah Pedal

Retailing in the region of £69.99

On the menu for January 2026 are the Behringer Guitar Pedals, freshly added and carefully selected. These New units are available to order online with fast, secure delivery from trusted UK retailers. Read on for full details, specifications, demos, videos, reviews, and the best places to buy the Behringer Guitar Pedals today.


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Description

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On the menu for January 2026 are the Behringer Guitar Pedals, freshly added and carefully selected. These New units are available to order online with fast, secure delivery from trusted UK retailers. Read on for full details, specifications, demos, videos, reviews, and the best places to buy the Behringer Guitar Pedals today.

The Behringer B-TRON III Envelope Filter is a faithful recreation of the iconic auto-wah pedal that defined the funky sounds of the 1970s. Whether you play guitar, bass, or keyboards, this versatile pedal reacts dynamically to your playing, delivering rich, expressive “Wah” and vowel-like tones.

Key Features

  • Classic Auto-Wah Filtering – Recreates vintage envelope filter sounds with low-pass, band-pass, and high-pass modes, allowing for expressive funk tones and high-frequency sizzle.
  • Versatile Range & Drive Modes – Switch between low and high frequency emphasis, and choose Up or Down drive settings to achieve either traditional Wah or cocked “Wow” sounds.
  • Wide Dynamic Input & Gain Control – Handles instruments with a +30 dBu input range and offers up to +40 dB gain, making it suitable for both subtle filtering and bold tonal shaping.

Featuring three selectable filter types – low-pass, band-pass, and high-pass – the B-TRON III lets you dial in anything from a deep, funky quack to a sizzling high-end bite. The Range switch further tailors the sound, offering both low (for warm, vowel-like articulation) and high (for pronounced overtones) settings.

Additionally, the Drive switch provides Up and Down modes, letting you choose between a traditional sweeping Wah or a cocked “Wow” effect. Designed for powerful performance and tonal flexibility, the B-TRON III boasts an impressive gain range of +40 dB, ensuring a wide input dynamic range for professional use. Compact and robust, it runs on a standard 9V DC power supply and is built to handle the demands of the stage and studio alike.

Specifications

  • Instrument Input: 1 x 1/4″ TS jack, unbalanced
  • Input Impedance: 1 MΩ
  • Maximum Input Level: +30 dBu
  • Amp Output: 1 x 1/4″ TS jack, unbalanced
  • Output Impedance: <600 Ω
  • Maximum Output Level: +13 dBu
  • Filter Mode: Lo-Pass, Band-Pass, Hi-Pass (rotary switch)
  • Shape (Q) Range: 1.5 to 14, adjustable
  • Gain: Up to +40 dB
  • Range Switch: Low/High
  • Drive Switch: Up/Down
  • Power Supply: 9V DC, centre negative (>100 mA)
  • Power Consumption: 0.25 W
  • Dimensions: 61 x 100 x 171 mm (2.41 x 3.94 x 6.73″)
  • Weight: 0.68 kg (1.5 lbs)

Additional information

Weight 1 kg

Brand

Behringer

Behringer is a prominent manufacturer of audio equipment, including mixers, amplifiers, signal processors, synthesizers, and digital effects units, known for their affordability and wide range of products. Founded in 1989 by Uli Behringer, the company has grown rapidly to become one of the largest manufacturers of audio equipment in the world.

Behringer’s product lineup covers a broad spectrum of audio equipment, catering to musicians, audio engineers, DJs, and live sound professionals. The company offers a variety of mixers, ranging from compact analog mixers for home studios to digital mixers with advanced features for live sound and recording applications.

In addition to mixers, Behringer produces a wide range of amplifiers, including guitar amps, bass amps, and powered PA speakers, as well as signal processors such as equalizers, compressors, and effects units. Behringer synthesizers, like the DeepMind series, have also gained popularity for their affordability and impressive sound quality.

Behringer is known for its commitment to providing high-quality audio equipment at affordable prices, making professional-grade gear accessible to a wide range of musicians and audio enthusiasts. However, the brand has also faced criticism and controversy over issues related to intellectual property rights and product cloning. Despite this, Behringer’s extensive product lineup continues to be popular among musicians and audio professionals seeking reliable and affordable audio solutions.

Category

Guitar Pedals

Tags

envelope filter

Filter

New

This is brand new, fresh in, and a UK warranty is included. New Gear always comes from trusted UK music retailers.

Rotary

Rotary pedals recreate the swirling, moving sound of a rotating speaker cabinet, adding rich modulation and a sense of motion to guitar tones. They typically simulate the changing pitch and volume caused by spinning speakers, producing anything from subtle shimmer to deep, pulsating swirl. Rotary effects are often used for clean and lightly driven sounds to add depth, movement, and a classic, organ-inspired character.

Wah

Wah refers to an expressive filter effect that sweeps through a range of frequencies, creating a vocal-like “wah” sound. Controlled in real time with a foot-operated treadle, it allows players to emphasise different parts of the frequency spectrum as they play. Wah pedals are commonly used for lead guitar, funk rhythm work, and expressive solos, responding closely to picking dynamics and foot movement.