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Behringer B-Tron III Envelope Filter

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$66.00 to $78.90 Price Tier: Standard

2 wishlisted

7 saved

Page last updated Jul 01, 2026

Pricing and availability

We compare 600+ stores and found this item at 7 stores. Prices updated June 16, 2026.

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4.0 (17)

$78.90

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4.0 (1)

$69.00

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3.9 (32)

$78.90

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4.0 (1)

$78.90

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4.4 (16)

$66.00

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£58.00

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$78.90

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Average Price: $75

Standard/Professional

$70

$251+

Price Tier

In the Filter Effects Pedals category, Behringer B-Tron III Envelope Filter is priced in the Standard/Professional range. This is quality gear at a fair price point, suitable for beginners, hobbyists, and pros alike.

Budget

Standard

High-end

Price History

Based on price data from 5 merchants for "Behringer B-Tron III Envelope Filter". Prices shown reflect NEW condition. Tracking began Apr 2, 2026.

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Description

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Step into the world of funk-infused soundscapes with the Behringer B-Tron III Envelope Filter. This pedal is a tribute to the legendary envelope filters of the 1970s, offering you the timeless ability to transform your guitar or bass tone into a dynamic, vocal-like expression. At the heart of the B-Tron III is an all-analog optical circuit, meticulously designed to deliver the rich, organic tones that defined an era of music innovation.

Whether you’re a guitarist looking to add a touch of wah-inspired flair to your riffs or a bassist aiming to explore the depths of funk, this pedal is your ticket to a sonic journey. With three filter types—Low Pass, Band Pass, and High Pass—you can sculpt your sound with precision. The versatile Sensitivity control and Up/Down modes provide endless possibilities for tailoring your tone, allowing for seamless transitions between "wah" and "wow" effects.

The B-Tron III isn't just about nostalgia; it also incorporates modern features like true bypass switching and a robust metal enclosure, ensuring your signal remains pristine and your pedalboard stays durable. The Range switch further enhances your sound shaping, offering everything from low vowel-like tones to shimmering upper overtones. Whether you're plugging into a guitar, bass, or synthesizer, this pedal is your secret weapon for crafting iconic sounds.

Key Features:

Authentically recreates a classic 1970s envelope filter pedal
All-analog optical circuit for natural, dynamic tones
Three filter types: LP, BP, HP
Up/Down switch for "wah" and "wow" effects
Versatile Sensitivity knob for various instruments
Range switch for low to high tonal emphasis
Durable metal enclosure with vintage-inspired graphics
True bypass construction
Operates on standard 9V power (battery or external supply)

Product specs

Pedal Type	Envelope Filter
Analog/Digital	Analog
Inputs	1 x 1/4" (instrument)
Outputs	1 x 1/4" (amp)
Switches	3-way Mode (LP, BP, FP), Range, Drive, Power
Controls	Peak, Gain
Bypass Switching	True Bypass
Power Source	9V DC power supply (sold separately)
Batteries	1 x 9V
Height	2.41"
Width	3.94"
Depth	6.73"
Weight	1.5 lbs.

FAQs

What type of power supply does the Behringer B-Tron III Envelope Filter require?: The Behringer B-Tron III Envelope Filter requires a 9V DC power supply, which is sold separately. It can also be powered by a 9V battery.
What are the filter modes available on the Behringer B-Tron III Envelope Filter?: The Behringer B-Tron III offers three filter modes: low pass (LP), band pass (BP), and full pass (FP), allowing for versatile tone shaping.
Is the Behringer B-Tron III Envelope Filter suitable for bass guitars?: Yes, the Behringer B-Tron III is versatile and works seamlessly with guitars, bass, and keyboards, making it suitable for bass guitars as well.
Does the Behringer B-Tron III Envelope Filter have true bypass?: Yes, the Behringer B-Tron III features true bypass switching, ensuring that your signal remains unaltered when the pedal is not in use.
How does the Behringer B-Tron III Envelope Filter achieve its vintage sound?: The Behringer B-Tron III uses an all-analog optical circuit, which ensures a natural response and delivers the iconic '70s funk tones associated with vintage auto-wah effects.

Videos

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Behringer

Introducing Behringer B-TRON III ENVELOPE FILTER

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Owner Insights

We analyzed real musician discussions from forums and Reddit to find what players love, question, and tweak about Behringer B-Tron III Envelope Filter.

Build quality

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The pedal's pots are PCB-mounted and slightly wobbly, with plastic shafts that some owners wish to replace with better quality ones.
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Despite past concerns, Behringer's new line features metal enclosures, improving durability over their previous plastic models.
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Features and functionality

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The Peak knob is most effective when set to zero, requiring careful adjustment with the gain knob to prevent the filter from sounding metallic.
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The B-Tron III lacks an expression pedal input, which some users find disappointing given Behringer's strength in synths.
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The Gain knob influences both volume and sensitivity, and setting it at 5 achieves unity volume but can make the sound shrill.
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Use cases and applications

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A combination of a clean boost before and a compressor after the pedal can help activate the filter consistently at lower volumes.
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It's noted that the pedal should have been demonstrated on keys and bass, as it's widely used for these instruments in funk.
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Achieving a Jerry Garcia sound is possible with the B-Tron III, but requires careful use of a compressor and specific pedal combinations.
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A low pass setting with specific knob adjustments (Peak at 4, Gain on 2) can achieve desired tonal results when combined with a clean boost and tube screamer.
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Comparisons

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Compared to vintage Big Box QTron, the B-Tron III is less warm, faster, and less forgiving, making it less ideal for users seeking a more traditional Mu-Tron sound.
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Some owners find the B-Tron III sounds better than their EHX Q-Tron+ due to its smoother response.
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Some users prefer the B-Tron III over the Qtron Nano due to better response and less shrillness.
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Mods and upgrades

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It's suggested to use the pedal at 12v for more headroom, although the original design runs on 9v with a charge pump for +9 and -9v.
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Some users suggest integrating a compressor into the design to achieve a more consistent envelope filter sound without external pedals.
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Using a Boss Booster Preamp in front of the B-Tron III enhances its range and touch sensitivity.
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