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Source Audio Soundblox Bass Envelope Filter

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Source Audio Soundblox Bass Envelope Filter

4.0 (6)

1 Critic Review

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Page last updated Jul 01, 2026

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Description

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Dive into a world of sonic exploration with the Source Audio Soundblox Bass Envelope Filter, a pedal that effortlessly merges vintage funk with cutting-edge technology. Designed with the modern bassist in mind, this pedal offers an expansive range of tonal possibilities thanks to its 21 distinct filter sounds. Whether you're looking to add subtle nuance or a bold, sweeping effect, this pedal has you covered.

Housed in a sleek, robust chassis, it's designed for seamless integration with other Soundblox models, making it a versatile addition to any pedalboard. At its core, the Bass Envelope Filter features a patented 56-bit digital signal processor, ensuring pristine audio quality and responsive control. With positive and negative filter sweeps, dual range speed control, and an intuitive interface, shaping your sound has never been more satisfying.

Perfect for players who crave both classic and contemporary tones, this pedal is your gateway to a universe of musical expression. Whether you're grooving on stage or crafting in the studio, the Soundblox Bass Envelope Filter is a must-have for any bassist looking to elevate their sound.

Key Features:

21 distinct filter sounds
Positive and negative filter sweeps
Dual range speed control
Patented 56-bit digital signal processor
Sleek, robust chassis for seamless integration with other Soundblox models

Product specs

Brand	Source Audio
Model	Soundblox Bass Envelope Filter
Finish	Purple
Year	2010s
Made In	China
Categories	Filter and Wah Pedals

FAQs

What kind of power supply does the Source Audio Soundblox Bass Envelope Filter require?: The Source Audio Soundblox Bass Envelope Filter requires a 9V DC power supply. It does not run on batteries, so a standard pedalboard power source is necessary.
How does the Source Audio Soundblox Bass Envelope Filter differ from traditional envelope filters?: The Source Audio Soundblox Bass Envelope Filter offers a range of unique filter effects with adjustable parameters, allowing for more customization compared to traditional envelope filters. It features multiple filter types and control options for enhanced sound shaping.
Is the Source Audio Soundblox Bass Envelope Filter suitable for live performances?: Yes, the Source Audio Soundblox Bass Envelope Filter is designed for live use, offering durable construction and footswitch controls that make it easy to toggle effects during performances.
Can the Source Audio Soundblox Bass Envelope Filter be used with instruments other than bass?: While specifically designed for bass, the Source Audio Soundblox Bass Envelope Filter can also be used with other instruments, such as electric guitar, to achieve unique filter effects. However, the tonal response may vary.
What are some standout features of the Source Audio Soundblox Bass Envelope Filter?: Standout features include multiple filter types, extensive control options for effect tweaking, and a robust design suitable for both studio and live environments. Its versatility allows for a wide range of sonic possibilities.

Videos

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Bass Effects Pedal Demo - Soundblox Bass Envelope Filter

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Tech Talk: The Soundblox Bass Envelope Filter (part 1)

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Reviews

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Owner Insights

We analyzed real musician discussions from forums and Reddit to find what players love, question, and tweak about Source Audio Soundblox Bass Envelope Filter.

Features and functionality

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The Soundblox Pro BEF offers presets with a "gooey" sound reminiscent of Parliament and Yes, making it attractive for funk and progressive rock stylings.
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The Soundblox Bass Envelope Filter integrates well with other pedals, especially when placed after a synth pedal for richer sound textures.
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The pedal's flexibility is highlighted by its six presets, providing a wide range of sound options that appeal to bassists exploring different genres.
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The HotHand expression controller adds unique modulation options; experimenting with different placements, like hands or even down pants, can yield creative results.
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Limited to six presets, users wish for more storage options to accommodate the pedal's extensive sound-shaping capabilities.
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Software and compatibility

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Users experienced compatibility issues with non-Source Audio expression pedals, suggesting that the SA expression pedal is a more reliable choice for seamless integration.
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User experience

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Owners appreciate the durability of the BEF, with one noting its dependable performance since 2012, describing it as a "tank" that continues to impress.
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Owners enjoy the rewarding process of arranging pedal boards, with Rockboard recommended for its durability and cable management space.
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Owners find the pedal's back page menu essential for unlocking its full potential and crafting more complex tones.
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Users note a steep learning curve; without the manual, significant time investment is needed to explore and find preferred sounds through trial and error.
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Setup and maintenance

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One user resolved expression pedal issues by switching to a Hotone Ampero Press, indicating that pedal type and polarity settings may impact functionality.
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Use cases and applications

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The pedal is praised for producing a strong mid-boost effect that enhances mix presence, particularly effective in styles similar to Phish's music.
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The pedal is often used in conjunction with a variety of effects, like Ibanez TS9B and MXR DynaComp, to create diverse soundscapes.
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The pedal's best tones are often discovered at the tipping points of middle knob ranges, affected by the plugged-in bass’s output level.
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Critic Reviews

Soundblox Bass Envelope Filter Pedal: In-Depth Review - Premier Guitar

premierguitar.com

The Source Audio Soundblox Bass Envelope Filter is a versatile and affordable pedal that brings funk to your fingertips. With a range of 21 presets and features like the Hot Hand motion sensor, it's praised for its dynamic response and crystal-clear sound. While its tech-influenced design may not appeal to vintage purists, its expressiveness and ability to mimic classic analog envelope filters make it a standout choice for bass players keen on funk and dance music. If you're ready to embrace the groove, this pedal offers impressive value and performance.

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Artist usage

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Mike Gordon

Singer, Bassist

Phish

Verified via YouTube

He talks about it at around the 6:20 mark and it can be seen on his rack.

Jesse Miller

Bassist

Verified via Sourceaudio

Together, we explored the sounds of the Soundblox Bass Envelope Filter and the Soundblox Pro Multiwave Bass Distortion by plugging them straight into his pedal board.