https://shop.presonus.com/products/soft .. e-Neutrino
Compatible with Studio One Professional 3.1.1 or higher
Four modes of Neutrino:
Voice: Add clarity and detail that helps vocals sit on top of the mix without becoming harsh or strident.
Instrument/Guitar: Smooth resonances while preserving the authentic character of the instrument.
Bass: Add punch and weight to electric, acoustic and synth basses.
Drum: Emphasize transient detail across the spectrum to minimize “muddy” or “flabby” sounds
Clarity across the board: Ultra efficient and designed to add unprecedented balance and focus to a mix when applied to every track, conceptually similar to analog summing or console emulations.
Simple controls: Tweak just two knobs to dial in the appropriate processing amount and detail for your music.
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Note: Requires an account at iZotope's website to download
License Agreement
The license agreement allows you to use one copy of the software on any one computer at any one time. If more than one user will be using the software at any one time, you must obtain one license for each concurrent user of the software from iZotope, Inc. If you have read and agree to this license, click 'I Agree' below or 'Cancel' if you wish to cancel this authorization attempt. Although we do not automatically limit the number of challenge/response authorizations you can have, we do audit the accounts and will follow up if it appears a user is abusing the license agreement. You can also read the full text of the end user license agreement. Click here
https://account.izotope.com/en/license-agreement/
Please note: Neutrino is a plug-in only and does not operate in standalone mode.A free serial number is required in order to authorize and use Neutrino. This serial number will be emailed to you at the address you provided, and will be available in your iZotope account. Without a serial, Neutrino will operate in Trial Mode and insert periodic silence until you authorize.
https://account.izotope.com/support/download/neutrino
To install Neutrino, please follow these three simple steps:
Choose which version of the product installer to download, PC or Mac.
After you download, run the product installer.
After you run the installer, load Neutrino as a plug-in in your audio editing software. You will be prompted to enter your free serial number when you instantiate Neutrino on an audio track.

Last edited by scottmoncrieff on Tue Dec 20, 2016 4:58 am, edited 2 times in total.

Wasn't Neutrino since its release already available free of charge to anyone?

Yeah, this is not a special Presonus related deal. It's available to anyone with an Izotope account. I've had it for more than a month.

Win 10 Prof. 64 Bit; Lenovo P52 2.6, Intel 8750h multi core laptop w/32g of RAM and separate sample drives; Presonus FP10; Studio One 4.5.4 Prof. 64 bit; Notion 6; various Native Instruments, IK, Nomad Factory, Soundtoys, Toontrack, BFD, XLN and other vsts and vstis

Err..installed but cant see it in S1 anywhere?
How do I actually try it?

Presonus 16.4.2 - Mac mini 2.3G i7, 16G Ram, Faderport - S1 -3 Pro
Novation Impulse 49 - Yamaha HS7 - Kemper Profiler -
SE 3300 - SE2200 - SE Reflexion - EBMM AAxis super sport - Taylor 414CE - PRS 513.

Look in the Effects tab in the Browser, then click the Flat listing. It'll be down somewhere between Multiband Dynamics and Open Air.

Garry Knight
Studio One 3 Professional
Melodyne Editor 4, NI Komplete 11
Focusrite Scarlett 2i4 audio interface
Windows 10 Professional 64-bit, 16 GB RAM, Core i5
Microsoft Surface Pro 3, Core i7, 8GB RAM, 128 GB SSD
Nektar Impact LX49+, Samson Graphite 25, and Korg microKey 25 MIDI controllers
Novation ZeRO SL MkII mixing control surface
Korg nanoKontrol 2 mixing control surface
Reaper, Logic Pro X, GarageBand
https://soundcloud.com/garryknight

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Please add your specs to your SIGNATURE.
Search the STUDIO ONE 4 ONLINE MANUAL. Access your MY.PRESONUS account.
OVERVIEW of how to get your issue fixed or the steps to create a SUPPORT TICKET.
Needs to include: 1) One Sentence Description 2) Expected Results 3) Actual Results 4) Steps to Reproduce.
Windows 10 X 64 : AMD Phenom II X 4 945, ATI Radeon 5450 / 512 RAM - 8GB RAM / 1T SATA, Mac Mini (Late 2014), Faderport and Faderport 8, Yamaha S-08 Synth, Fishman TriplePlay Guitar MIDI, Logidy Controller, assorted PreSonus Gear