Uploaded September 2022 | Updated September 2026, 2 weeks ago
Future Sound Systems isn't known for making polite modules. Their original claim to fame was a Eurorack version of the Gristelizer, and surely the name alone is enough to tell you what it sounded like.
These two modules are both filters (though not part of the Gristleizer line). The FIL3 Spectral Devastator is two filters in series (unless you decide otherwise), whereas the FIL4 Timbral Sculptor is a single filter with a couple wave folders and a rectifier in the signal chain (again, unless you decide otherwise).
I suppose you can maybe make things sound "nice" with these, but mostly I'm trying to decide which one creates a more visceral rip, tear, and shred for the hp it takes up.
Input audio was a basic sine wave from a Dixie II+. Sequenced by Stochastic IG. Envelope by Zadar.
00:00 Intro
00:20 FIL3 HP
01:56 FIL3 LP
03:19 FIL3 Both
05:26 FIL3 Sequence
11:56 FIL4
14:58 FIL4 Sequence
Future Sound Systems isn't known for making polite modules. Their original claim to fame was a Eurorack version of the Gristelizer, and surely the name alone is enough to tell you what it sounded like.
These two modules are both filters (though not part of the Gristleizer line). The FIL3 Spectral Devastator is two filters in series (unless you decide otherwise), whereas the FIL4 Timbral Sculptor is a single filter with a couple wave folders and a rectifier in the signal chain (again, unless you decide otherwise).
I suppose you can maybe make things sound "nice" with these, but mostly I'm trying to decide which one creates a more visceral rip, tear, and shred for the hp it takes up.
Input audio was a basic sine wave from a Dixie II+. Sequenced by Stochastic IG. Envelope by Zadar.
00:00 Intro
00:20 FIL3 HP
01:56 FIL3 LP
03:19 FIL3 Both
05:26 FIL3 Sequence
11:56 FIL4
14:58 FIL4 Sequence









![SEM filter comparison 2
Its been a minute since my first SEM filter comparison (link above/below), and a few new SEM filters have come out since then that I found irresistable.
This comparison is low pass only. It would take far too long to compare (in what I view as a useful way) every output and mode, so this is it for now.
In theory theyre all based on the SEM circuitry, but some do have alterations. Im less concerned with purity or adherence to the original sound as I am with how good they sound period.
[Note: the E430 was originally on a power supply that it didnt like, or didnt like it, or had a module on the same power bar that wasnt cooperating. Youll hear a weird delay, which as it turns out was power related. Theres an addendum at the end with the E430 by itself on good power so you can hear it properly.]
Source VCO is an Acid Rain chainsaw. Envelope is Zadar. Sequencer is
Pittsburgh Modular microSequence.
00:00 Intro
00:20 Dry
02:57 Resonance
07:43 Input gain
15:57 Knobbage
18:48 E430 SEM filter comparison 2](https://i.ytimg.com/vi/9uyWXy0NBZw/mqdefault.jpg)
