RYSY
LEGENDARY
1950S FILTER

EXPLORE ↓

A FILTER, A PREAMP, AND A BUNCH OF BOLD CHOICES

The year is 1957. In a small country in Eastern Europe, a new studio opens. In a few years, it becomes a symbol of artistic freedom, unheard-of in the communist block. It also just happens to be one of the very first experimental music studios in the world. They even make dub techno, before it’s recognized as a genre.

overview

This is the Polish Radio’s Experimental Studio. And it’s where this filter came from - and I mean this both literally and philosophically.

Rysy is a sound design instrument in its own right. Use it to shape the texture of your tracks. Add movement to static sounds. Or add a bit of the 50s valve magic to everything. Simply inserting it on a track makes a difference.

The legendary W49 Hörspielverzerrer, which Rysy captures faithfully, was a go-to filter for pioneers of early electronic music. One of its most famous uses was the groundbreaking Kontakte by Karlheinz Stockhausen.

The device is made out of two stepped filter bands and additional control, which changes the intensity of filtering.

the story

The filter was designed to be followed with a V41 tube preamp, which is regarded as one of the rarest and best-sounding preamps made. Ever.

Rysy captures that exact signal chain and brings it to your studio for instant gratification and a larger-than-life sound full of analogue warmth and vibe. Past to future. Future to past. Whichever direction, it sounds like nothing else.

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Set the stepped filters to craft a new mood for your track.

INTERFACE

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Adjust the intensity of filtering. Automate it for synth-like sweeps. Set your cutoff points first before adjusting this!

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Digital sounds too perfect? Inject some life back in with the authentic noise, sampled from the original hardware.

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The LFO is hard-wired to the Intensity knob to bring life to your tracks.

I use Rysy when I need a powerful shaping tool. Sometimes, I put in on the full orchestra bus while I mix a film score.

  • - Francesco Donadello
    (Hildur Gudnadottir, Johann Johannsson, Modeselektor & Thom Yorke, Moderat)

A RADICALLY DIFFERENT APPROACH TO FILTERING

While most filters on the market emulate three of the most popular synthesizer filters, Rysy takes a different approach. It captures an extremely rare (up to the point of being unobtanium) filter created in the 1950s and used in the most famous electro-acoustic music studios of the time.

However, it’s not only the sound that’s unique. The filter bands are stepped, so you can’t sweep them like on a standard synth. Some might see it as a limitation, but it forces you to approach things differently.

HOW TO APPROACH IT

Set your cutoff points first to find the most filtered sound you’re after, and then animate things with the Intensity knob, closing and opening the spectrum along with the flow of the track.

Discover new, abstract textures hidden in your recordings and samples. Or use it to add that unmistakable warmth to your tracks. Once you’ve discovered Rysy, you’ll use it on everything.

Legacy of pioneers

the ORIGIN

Rysy was born out of a fascination with techniques and tools used at the Polish Radio’s Experimental Studio, where repurposed test equipment clashed with creative tape splicing, ground-breaking sonic explorations, and a belief that paths are to be set rather than followed.

I’m incredibly proud to bring these tools to light and share them with the next generation of music producers. Put your explorer hat on. Dare to change things.

Eugeniusz Rudnik and Krzysztof Penderecki at the Polish Radio’s Experimental Studio. fot. Andrzej Zborski/Fotonova

Bundle Deal

Discover new sonic grounds with two experimental studio icons.

TRY IT OUT

Download the free trial and experience Rysy at your own studio.

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  • With great power comes great responsibility. Due to its cutting-edge sound (no pun intended!), the plugin is CPU intensive. If you intend to use multiple instances, you might need to freeze some tracks. Download the demo to try it out before committing to a purchase.

  • Windows (10 or newer) and Mac (10.11 or newer). 8GB of RAM and an i5 or better CPU required. 64-bit only. MPE requires a compatible DAW. The download and setup are handled by Pulse, which makes it easy to manage all your Felt Instruments. The fiels are watermarked to you.

    The plugin works in every major DAW that supports VST3, Audio Unit or AAX plugins, like Ableton Live 10 or newer, Logic, Pro Tools, Cubase, FL Studio, Studio One, Reason 12, Reaper etc.

  • There are no sales at Felt because I don’t think they’re fair to people who got the plugins earlier on. And those are the people who I want to support the most, which is why I offer loyalty pricing.

    In a nutshell, purchasing the plugins gives you access to bundle upgrades and sweet discounts on new releases.

    Read more here →

  • I offer a 25% edu discount on individual products to students and educators. The discount will be valid for a year since it’s issued and will not work on the bundles as they’re already discounted. If you’re interested in edu pricing, please, send me a copy of your Student or Staff ID or a different proof of your enrolment and I’ll set you up.

    Please, allow a few days for a response - Felt is a one-man company and support needs to get the priority treatment.

PLUGIN specs