Siel Flow Kontakt library by Soundiron, Black Friday deal on the 1980s analog synth instrument
Black Friday 2026 · sale ends Dec 6, 2026

Siel Flow Black Friday Deal 2026: $14.50, 50% off

$14.50 $29 -50%
Soundiron · Kontakt Instruments · Sold by Plugin Boutique. Price checked Nov 9, 2026.
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Salvatore Tomaselli
By Salvatore Tomaselli · Senior Editor
Drafted with AI assistance How we review

Siel Flow Black Friday pricing is $14.50, 50% off, until Dec 6, 2026, on Soundiron's Kontakt library built from a 49-key analog synth that Siel made in Italy in the 1980s.

The original is a monophonic synth with dual oscillators and a built-in drum machine. Soundiron sampled it for vaporwave, chillwave, nu-disco, funk and Saturday morning cartoon themes.

What is inside Siel Flow?

Siel Flow ships with 17 sustain banks, 13 staccato banks, and a few drum loops as its sample content. Everything was recorded in two mic positions: close stereo and direct line-in.

Soundiron also built 20 ambient pads and evolving drones from the source recordings. Here is the rest of the content:

  • 21 Kontakt.nki instrument presets
  • 12 wavetables and 20 stock synth waveforms
  • 20 custom sound-designed FX and ambient presets
  • 5,087 stereo samples, 24 bit / 48 kHz uncompressed PCM wav
  • 5.69 GB installed

The maker pitches it at video game soundscapes, heavy synth basslines and nasal brass-style solos.

How do the Kontakt controls work?

The interface has automation-ready controls for swell, attack, release, offset, vibrato, filter, coarse and fine pitch, articulation switching, cross-fading and layering.

The LFO lets you pick the shape, the target parameter, speed, intensity, tempo sync and fade-in time. There are 12 lowpass, high-pass and FX filters, and modulation can come from velocity, modwheel, expression, after-touch, key position or the step-sequencer table.

The arpeggiator has a velocity table plus controls for direction, timing, swing, randomization and duration. A key and scale lock keeps your notes inside common scales and keys, which helps with quick melodic writing and live playing.

What does the FX rack do?

The modular rack holds 27 DSP effect modules across 8 slots, and you can load them in any order. Modules include phaser, flanger, delay, distortion, amp and cab simulators, compressors, EQ and a rotator.

The convolution reverb ships with 99 rooms, halls, chambers and outdoor spaces. Another 40 custom FX impulses are there for bigger changes to the sound, and factory FX chain presets give you a starting point.

What do you need to run it?

You need the full retail version of Native Instruments Kontakt 6.2.2 or later. The free Kontakt Player and its Add Library import do not support this open-format library, and it will sit in demo mode there.

It runs on Windows 7 or higher and macOS 10.12 or higher. Soundiron lists a dual-core CPU and 2 GB of RAM, with a SATA or SSD drive recommended.

Watch: Siel Flow

Play video: Walkthrough: Vintage Keys Series: Siel Flow

Siel Flow Black Friday deal: questions

Is Siel Flow on sale for Black Friday?

Yes. The Siel Flow Black Friday deal takes 50% off Soundiron's Kontakt library, bringing it to $14.50 until Dec 6, 2026. It is a 5.69 GB library with 21.nki presets, built from a 1980s Siel analog synth.

What is included in Siel Flow?

Sustains, staccatos, drum loops and keystrokes in close stereo and direct mic positions, plus 20 ambient pads and drones. You also get 12 wavetables, 20 synth waveforms, 21 Kontakt.nki presets and 20 custom FX and ambient presets, totalling 5,087 stereo samples.

Does Siel Flow work in the free Kontakt Player?

No. Siel Flow needs the full retail Kontakt 6.2.2 or later. The free Kontakt Player and the Add Library import process do not support this open-format library, and the instrument stays in demo mode there.

What effects does Siel Flow have?

The FX rack offers 27 DSP modules across 8 slots in any order, including phaser, flanger, delay, distortion, amp and cab simulators, compressors and EQ. The convolution reverb carries 99 rooms, halls, chambers and outdoor spaces, plus 40 custom FX impulses.

Prices and end dates are checked at publishing time and can change, so confirm them at the store before you buy.