Create moving sounds

HoRNet FilterSolo it’s a resonant filter with many modulation possibilities and analog emulation. It’s a perfect creative tool for sound shaping and design.

The filter itself is a high quality digital model with analog front-end and back-end, if you use a hot signal on it’s input and leave analog emulation on, you can hear it distort like a solid state unit would do.

FilterSolo offer four different filter type: low pass, high pass, band pass and band stop with 12dB or 24dB slope. Each of the filters has cutoff and resonance freely adjustable. These two main controls can be independently modulated with two different envelope followers that has independent attack and release settings ranging from 10ms to 1s.

In addition to the envelope followers you have two different LFO that can independently modulate the cutoff frequency or the filter resonance, the LFO speed can be free or synced to the host tempo. Both modulations options (envelope and LFO) can be positive and negative allowing you to create a wide range of moving and interesting sounds.

If you don’t like the analog saturation or the hiss you can turn off any of them separately.

The GUI let’s you quickly adjust any parameter since they are all exposed, there isn’t any modulation matrix hard to grasp and no multiple pages. Every parameter is quickly displayed in the big LCD display in the middle of the plugin.


The demo is fully functional except for the fact that every now and then it will silence out, you cannot save parameter values with your session and the plugin will not respond to automation coming from the host.


  • Multi-mode resonant filter with Low Pass, High Pass, Band Pass and Band Stop
  • Frequency range from 20Hz to 20000Hz
  • 12dB/octave or 24dB/octave slope
  • Analog saturation and hiss
  • Two independent envelope generator
  • Two independent LFO with tempo sync
  • Four different waveform for each LFO
  • Envelope and LFO modulation (positive and negative) for cutoff and resonance
  • Mac OS X (>=10.7) and Windows support
  • 64-bit compatibility both on Mac and Windows
  • Audio Units VST2.4, VST3, AAX format
  • Apple Silicon not supported yet

Copy protection

The HoRNet FilterSolo has no copy protection, I don’t believe in copy protection, they are always cracked and they are annoying for the users, we all know you are not going to give away the plugin on the internet…

So simply download the plugin and enjoy your recordings!

2 thoughts on “HoRNet FilterSolo

Thomas Gylstorff says:

Simple and easy UI
… but I would love to have longer synced LFO options, i.e. 2, 4 and 8 bars. I like slow-developing stuff 🙂

Brad says:

Atman's description of this plug-in having "unpredictable spikes, sounds drops, and weird screeching noises" basically describes, well, a resonant filter – which is what this is. Resonant filters are plug-ins you oftentimes have got to have patience with to arrive at a final result that works with whatever instrument you are using it with. On the way to your destination (if you get there at all which in some cases you may not) you far more than likely will encounter unpredictable spikes, sound drops, and weird screeching noises. That is just the nature of the beast when it comes to resonant filters.

Anyway, I just tried a demo version of this myself to see what is up with it. Personally experienced no crashes, has a very cool design, and does the job of a resonant filter. There is no resonant filter I know of out there in the same general price range that could touch this. Good deal if you are looking for a cool little nicely designed resonant filter.

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