You don't need the Yamaha name; you need the sound. Several Kontakt libraries emulate the "Arranger Keyboard" sound of the 2000s.
Free Options:
Paid Alternatives (Better than the original):
Before we discuss the download, we must understand the demand. The PSR-S900 sits in a sweet spot: Yamaha Psr S900 Kontakt Free Download
You can sample your own sounds into Kontakt using Kontakt's built-in sampling tools (full version required) or free tools like Samplerobot (trial) or Extreme Sample Converter.
If you want a plug-and-play experience, you are likely looking for a pre-made Kontakt library. While a direct, official clone of the PSR-S900 doesn't exist as a single free library, there is a better option that captures the essence and sound engine of the PSR series.
Recommended Free Solution: The "VSX" Project or Tyros/PSR Community Packs You don't need the Yamaha name; you need the sound
The sound engine in the PSR-S900 is very similar to the Tyros 2/3 series. Several community members have created "NKI" patches that bundle the best sounds from these workstations.
Where to find them: Look for "Yamaha Essential NKI" packs on freeware VST sites. These are often curated collections of the best voices (Grand Pianos, Brass, EPianos) sampled from the PSR hardware.
Top Tip: Check out the "Matt's Yamaha Pack" (often found on KVR Audio or various sound design forums). While not an exact S900 clone, it utilizes the same sample pool for the Sweet Sax and Live Drums that make the S900 famous. Paid Alternatives (Better than the original): Before we
Let’s address the elephant in the room. If you type this phrase into Google or torrent sites, you will find links. However, 99.9% of them fall into three categories:
If you are looking for a zero-cost solution, your best bet is hunting down legacy GIG files that users created from the PSR-S900 hardware.
How to use them:
Most modern samplers cannot read .gig files natively anymore. However, there is a workaround:
Pros: Totally free. Cons: Steep learning curve; often missing key-switching and release samples; requires conversion work.