Electrix Pro Filter Factory

4.5 (17)

1 Critic Review

2 Reviews

This product is Vintage or Discontinued

Find out who is using Electrix Pro Filter Factory

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6 wishlisted

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Page last updated Jun 14, 2026

Pricing and availability

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Price

Average Price: $600

High-end/Boutique

$100

$501+

Price Tier

In the Effects Processors category, Electrix Pro Filter Factory is priced in the High-end/Boutique range. This premium gear is built to very high standards and offers premium features.

Budget

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High-end

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Description

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The Filter Factory is a stand-alone 2-unit rack module stereo/mono analog filter. Use it to filter drum loops, synth arpeggiations, vocal tracks or entire mixes! It features notch, low-, high- and band-pass filtering modes. It functions as a stereo filter with a 2-pole slope, or in mono with a 4-pole slope. Big fat knobs allow hands on real-time tweaking of the Frequency Cutoff, Resonance, LFO Depth and Speed, Distortion and more. Plus it's totally MIDI equipped for recording, triggering and sequencing tweaks of the various parameters.

The Filter Factory is great for DJ's and for Musicians. It sounds great and IS analog with digital control, stability and features. 'Momentary' buttons allow you to drop in or tap in an effect, either the filter or the distortion which is great for live situations! The LFO section allows you to generate nice sweeping filter effects or other weird modulations. There's a Tap-Tempo to match the LFO to the stuff your filtering too. Truly worth getting! It has been used by U2, John Digweed, Freddy Fresh, La Peste, Peace Off, Hellfish & DJ Producer, DJ Pure, and the Chemical Brothers.

The FilterQueen is a 2-unit half-rack design with just a few knobs and buttons and is most likely suited for DJs and easy-access live use. It's still a stereo analog filter with switchable notch, band, low and highpass filtering, envelope follower, LFO and the Momentary button. There's also a large bypass ("Engage") switch. The knobs control the filter cutoff, resonance, LFO speed, depth and more. There is no MIDI, no patch storage, no external audio input or gain controls. The EQ Killer is another 2-unit half-rack design for DJs and performers. It's basically three independent bandpass filters which can be used to filter out or isolate certain frequency ranges of music. These sold for about $300 each.

Product specs

Brand	Electrix
Model	Filter Factory Analog High Order Filter
Finish	Green
Year	2000s
Made In	China
Categories	Equalizers
Electronics	Analog, Solid State
Format	19-inch Rackmount
Number of Analog Inputs	2
Number of Analog Outputs	2
Number of Channels	2
Number of Digital Inputs	0
Number of Digital Outputs	0
Number of Headphone Outputs	0
Number of MIDI Inputs	1
Number of MIDI Outputs	1

FAQs

What type of filter does the Electrix Pro Filter Factory use?: The Electrix Pro Filter Factory is an analog high-order filter, ideal for manipulating audio signals with precision and warmth, characteristic of analog processing.
How many channels can the Electrix Pro Filter Factory process simultaneously?: The Electrix Pro Filter Factory can process two channels simultaneously, making it suitable for stereo or dual mono applications.
Is the Electrix Pro Filter Factory compatible with MIDI devices?: Yes, the Electrix Pro Filter Factory features one MIDI input and one MIDI output, allowing for integration with MIDI-compatible devices for enhanced control.
What is the format of the Electrix Pro Filter Factory?: The Electrix Pro Filter Factory is designed as a 19-inch rackmount unit, fitting standard studio racks for easy integration into professional setups.
Does the Electrix Pro Filter Factory support digital inputs or outputs?: No, the Electrix Pro Filter Factory does not have digital inputs or outputs; it is fully analog, emphasizing its focus on high-quality analog signal processing.

Videos

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zibbybone

Having Fun with Electrix Filter Factory and MoFX

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Reviews

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PROS

Rich, smooth filter with no noise interference
Built like a tank, solid hardware
Fluid controls for seamless operation
Visually appealing design enhances studio aesthetics
High-quality analog filters ideal for live use

CONS

Some users prefer the sound quality of plugin filters

Owner Insights

We analyzed real musician discussions from forums and Reddit to find what players love, question, and tweak about Electrix Pro Filter Factory.

Features and functionality

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The Electrix Filter Factory is known for its distinct "squelchy" resonance, described as an unpleasant resonance squeal by some users.
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The MoFX excels in parallel setups via aux sends, while the Filter Factory performs best in a serial configuration.
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The Doepfer 121 Stereo VCF is highlighted for its affordability, though its resonance control is noted as challenging.
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Comparisons

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The WMD Overseer offers a similar feature set to the Filter Factory but requires additional routing through a eurorack setup.
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Sherman Filterbank is another alternative, offering a unique sound but not suitable for those seeking clean filtering.
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Waldorf 2-pole was noted for good performance but is limited by its mono output, contrasting with the stereo capabilities some users seek.
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The Erica Synths Acidbox III is suggested as an alternative, offering a similar feature set to the Filter Factory but with different tonal characteristics.
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Use cases and applications

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Kaosspads and Vernona Action Filter mentioned as potential alternatives for those seeking different tonal possibilities beyond the Filter Factory's capabilities.
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Changing delay sync time with CCs on the MoFX can create unique glitch effects, enhancing creative sound design.
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Make Noise QPAS has a unique sound, requiring users to be content with its consistent tonal character across various applications.
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Value and pricing

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Owners note Electrix gear has appreciated in value, suggesting investment potential.
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Electrix Filter Factory is considered affordable by some at around $400, despite mixed opinions on its sound quality being shrill and brittle.
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User experience

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The Electrix Repeater is praised for its robust build and appealing aesthetics, featuring "cute lights" and a tank-like construction.
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Setup and maintenance

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A patchbay is recommended for setups with multiple Electrix units, allowing re-routing without constant cable changes.
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Critic Reviews

Electrix Filterfactory & Warpfactory

soundonsound.com

The Electrix Pro Filter Factory shines with its retro design and real-time controls, appealing to both studio users and DJs. Its standout features include MIDI compatibility, a versatile filter section, and a distortion effect that adds grit without losing character. The Momentary buttons provide spontaneous control, while the lack of level meters and input control might pose challenges for some. Despite missing MIDI envelope triggering, the Filter Factory offers a fun, engaging experience with a wide range of sounds, making it a valuable tool for creative musicians looking to add dynamic, analog-style filtering to their arsenal.

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Full Review

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4.5 out of 5

Based on 2 Reviews and 17 Ratings

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jimmarchi1

41007

over 10 years ago

totally fun

all the electrix units were designed for DJs during the rave culture explosion of my youth so they could augment the vinyl they were spinning and the filter factory is by far the best of the bunch.... I should do a better review of this bad boy but its too depressing because I recently sold her (who else hates being a responsible adult? I know I do).... she has some great analog filters and an awesome LF.... oh my god I am tearing up! I almost never used this awesome processor but it was so nice knowing I had her just in case I wanted to get crazy filtering a guitar or DX7 live... anyway, the filter factory is a really high quality product and its a shame electrix went out of business

I will update this review at some point when the scab heals

Roles:

Guitarist Bassist Keyboardist

Genres:

Electronic Orchestra Alternative rock

truffleshuffle

116

about 10 years ago

Harsh but cheap

For what you pay, it's great. That said, I think plugin filters are available that sound better.

jimmarchi1

41007

10 years ago about 10 years ago

I just parted with mine because I was usually too lazy to plug it in, but man, I would argue that there are better sounding virtual filters... this analog filter bank just sounds different because its passing actual electrons. If you want clean, transparent parametric EQ type filtering then sure it sucks, but when you want some skronk the Electrix kills most plugins, plus you can use this in non electronic genres on, say, your guitar or bass in a live etting or even add some cool filtering to 80s digital synths like a DX7 and then use the resonance to make some horrible (or to me wonderful) ringing textures into a distortion pedal and/or guitar amp

truffleshuffle

116

10 years ago about 10 years ago

Oh it's super fun for sure. I've run everything through mine at one time or another, but it's no Sherman or Mutator. That said, it's what I have, and I use it constantly. Electrons are great, but in just the last few years analog circuit emulation has really come a long way. I never would have said a plugin could come close in 1997, but Cytomic's filter models especially have made me a believer in what is possible in the box when you don't have something sweeter mounted in your rack.