Behringer B-TRON III Envelope Filter Pedal

Behringer B-TRON III is an envelope filter pedal designed for instrument tone shaping in performance and recording setups. It enables envelope-controlled filtering for electric guitar, bass, and keyboard signals, supporting dynamic modulation from playing input. This makes it ideal for musical passages where touch-sensitive filter movement is critical.

The pedal processes the incoming instrument signal and applies a selectable filter mode to shape the frequency content based on playing dynamics. User controls adjust the filter behavior and output level to match different instruments and signal chains.

It can be used to add envelope-driven filter movement to rhythm parts, lead lines, and synth-style passages without requiring additional routing. The filter modes and adjustable response allow integration into pedalboards and direct-to-amp setups.

Key Features

• Envelope Filter Operation: Processes instrument dynamics to drive filter response
• Filter Mode Selection: Lo-Pass, Band Pass, and Hi-Pass modes via 3-way switch
• Adjustable Filter Response: Shape Q control adjustable from 1.5 to 14
• Signal Level Control: Gain control with maximum gain of +40 dB
• Instrument Input and Amp Output: 1 x 1/4" TS input and 1 x 1/4" TS output, unbalanced

Technical Specifications

Signal Connections
Instrument input: 1 x 1/4" TS jack, unbalanced
Impedance: 1 MΩ, unbalanced
Maximum input level: +30 dBu
Amp output: 1 x 1/4" TS jack, unbalanced
Impedance: <600 Ω, unbalanced
Maximum output level: +13 dBu

Controls
Mode: 1 x rotary 3-way switch Lo-Pass/Band Pass/Hi-Pass, switchable
Peak: 1 x rotary knob
Shape (Q): 1.5 to 14, adjustable
Gain: 1 x rotary knob
Max. gain: +40 dB
Power: 1 x rocker switch Off/On, switchable

Power Supply
Power supply: External adapter
Power input: Standard 9 V DC, center negative, >100 mA
Power consumption: 0.25 W

Dimensions
61 x 100 x 171 mm
(2.41 x 3.94 x 6.73")

Weight
Weight: 0.68 kg (1.5 lbs)