Item #: YAM S90XS LIST

Yamaha S90XS 88 Weighted Key Synthesizer Keyboard

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Product Description

The S90XS combines the sounds of the Motif XS, a handcrafted S6 piano, and the ease of use of a stage piano. Features like a Balanced Hammer action, combo input jack for adding vocals and guitars and USB record/playback make it perfect for stage or studio. The compact design of the S90XS is portable and road-ready.  The S90XS also lets you quickly create your own Performances, with the amazingly fast Performance Creator feature. With extensive Controller functions, it’s also the perfect companion for your computer music production system. 

Yamaha S90XS Features:

  • The sounds of the Motif XS plus a huge new S6 handcrafted grand piano sample
  • 88 note Yamaha Balanced Hammer weighted action
  • New Performance Creator for instant splits, layers and drum performances
  • 4 knobs,  16 backlit LEDs and tons of buttons for direct hands on control
  • 1/4 inch/XLR Combo jack A/D input (with front panel controls) for adding vocals and guitars
  • Direct to USB Stereo Audio record/ playback (plus 18 minutes of internal flash memory)
The Yamaha S Series
The S Series features all the Voices, Performances, arps and Virtual Circuit Modeling effects found on the flagship MOTIF XS Music Production Synthesizer. In addition, we've added a completely new, luscious piano sound of a whopping 100 megabytes, for an expanded total of 456 MB of instrument samples.

Foremost among these new piano sounds are the new samples taken from Yamaha's worldrenowned S6 concert grand piano. These fully capture the richly textured sound of that wonderfully expressive instrument, and provide a warm concert grand piano sound unavailable on any other keyboard. For variation, the MOTIF XS piano based on a Yamaha CFIIIS is also available.

The S90XS has a wealth of pro-level effects - including a special set of VCM (Virtual circuitry Modeling) effect programs that authentically emulate analog circuitry, realistically recreating the uniquely warm characteristics of vintage processing gear.

Streamline Your Performance
The S90XS also lets you quickly and conveniently create your own custom Performances, with the amazingly fast and easy Performance Creator feature. It's never been easier to select a Voice, then quickly program Layers and Splits - even assigning a Drum Voice complete with arps to create your perfect Performance.

The S90XS gives you comprehensive, easy-to-use controls for your Performances as well - such as Octave and Transpose buttons for quickly changing the pitch, and a Tap Tempo button that lets you easily change the tempo of Arpeggio or MIDI sequence playback on the fly. You can assign virtually any parameter on the instrument to one of the Assignable Function buttons (using the S90XS Voice Editor) and switch the parameter as you play for example, turning specific sound elements of a Voice on or off. Moreover, the instrument lets you route a click sound to one of the assignable outputs. With this you could let your drummer hear just the click sound and lock into your Arpeggio or MIDI playback.

Ideal for Live Performers


The S90XS has a host of other features that live performers will appreciate - such as the combo input jack that accepts both mic and instrument input. Simply plug in a microphone or guitar, tweak the INPUT GAIN knob (while checking the convenient PEAK lamp), and you're all set! Plus, you can use the Control Knobs to finely adjust the volume and even directly apply reverb or chorus to the sound.

Recording Direct to USB Memory

If you've got a USB memory stick or thumb drive, you can plug it into the S90XS and record your performance as audio data. This remarkable feature lets you instantly capture what you play on the keyboard - including arpeggio playback - to your USB device. If you've connected a microphone, you can even record your singing or playing as well. You can also record audio directly to the internal flash memory (192 MB) built into the instrument, without the need of a memory stick.

Computer Control
The S90XS is a perfect companion for your computer music production system, too, serving both as a master keyboard and a full-function, multi-timbral tone generator. With the DAW Remote function and its 50 different control templates, you get amazingly easy, intuitive control over your main DAW software and VST instruments directly from the panel controls! Special Remote Editor software lets you change and organize these templates.

Product Specifications
Yamaha S90XS 88 Weighted Key Synthesizer Keyboard Specifications


  • Dimensions Width: 1,472mm (58")
  • Height: 173mm (6-3/4")
  • Depth: 385mm (15-1/4")
  • Weight: 22.4kg (49.6 lbs.)


  • Number of Keys: 88
  • Type: Balanced Hammer Effect Keyboard
  • Initial Touch: Yes
  • Aftertouch: Yes

Other Controllers

  • Pitch Bend: Yes
  • Modulation: Yes
  • Control Slider: Assignable Control sliders x 4
  • Control Knobs: Assignable Control knobs x 4
  • Others: Data Dial


  • Type: graphic backlit LCD
  • Size: 160×64 dot
  • Backlight: Yes
  • Contrast: Yes


  • Tone Generating Technology: AWM2 with Expanded Articulation
  • Multi Timbral Capacity: 16 Internal Parts + Mic Input Part
  • Ware ROM Capacity: 456 MB (when converted to 16-bit linear format), 2,772 waveforms
  • Number of Polyphony (Max.): 128
  • Number of Voices Preset: 1,024 normal voices + 64 drum kits, GM: 128 normal voices + 1 drum kits, User: 128 x 4 (Bank 1 - 3: selected and copied from Preset bank), Normal Voice + 32 drum kits


  • Reverb: 9 types
  • Chorus: 22 types
  • Insertion: 53 types x 8 blocks
  • Master Effect: 9 types
  • Master EQ: 5 bands
  • Part EQ: 3 bands, stereo


  • Number of Arpegio: Preset x 6,779 types, User x 256 types (when loading the User Arpeggio data of MOTIF XS)

Compatible Data Format

  • Playback: SMF Format 0/1 (playback only)

Internal Memory: 192MB
CD-ROM: Cubase AI Disc x 1

Included Accessories: AC Power cord, Owner's Manual, Owner's Manual CD-ROM (containing Reference Manual and Data List)

Helpful Info about the Manufacturer
Phone:  714-522-9000 Warranty:  7 Years: DSR, DXR, and DXS Speakers; 3 Years: Power Amps, Speakers; YDP, CP, N100, PF & P Series Digital Pianos
1 Year: Digital Mixers, Studio Monitors, Analog Consoles, Powered Mixers, Multi-Track Recorders, Digital Effect Processors, Signal Processors, Synthesizers, Drum Machines, Sequencers, Tone Modules, Portable Keyboards, Guitars, Drum Shells & Hardware, Drum Shell Finish.
1 Yr Parts, 90 Days Labor: Drum Pedals, Cymbal Stands, Rack Systems
Calicoyote from Sacramento, CA Submitted: 8/29/2013
Product Rating
Its great! Buy it.
Product Rating
What is your opinion of this product?
Excellent synthesizer, wonderful true piano action. Plays better than some acoustic pianos. And ya never need to tune it! :) I believe its the best 88 key synth out there. That's why I bought it.
Top-notch quality. Its a Yamaha. This will work for ANY genre of music.
While its a bit heavy at about 50lbs, its got a metal casing.I expect it to be durable. This is my main keyboard so it goes to every rehearsal and gig. Its a lot of synth for a beginner, though the action is the best so on that alone I'd recommend it for a beginner. However, if you are just learning to play piano, get something else. A couple of grand plus is probably too much to simply learn on.
The only suggestion I have for Yamaha is to make a foot controller to switch btwn the arps. Then it would really have its own built-in drummer/bassist! Plenty of room to save edited voices, layers, splits and manipulate the settings. It has two expression pedal jacks and you can change controller settings to use separate exp pedal on voices. Example is piano always on, horns controlled with Exp #1, strings controlled with Exp #2, lets you bring them in and out as needed, though ya gotta get in there and tweak the exp pedal settings. 1000s of voices. The onboard memory stick slot is great for quick recording and mic/2d instrument input is nice too.
The S6 samples are GREAT! All of the samples are first class. GET THE BEST SPEAKERS YOU CAN! You can hear the subtle differences bwtn the S6 samples (Intimate, Woody, Rock, Bright, Natural) Its amazing. If you want THAT piano sound for a song, this has it. Same with the other instruments (EP, Tonewheel Clav, etc). The non-keyboard instrument samples sound great too. Guitar, bass, strings, horns, you name it and the S90 delivers.
For piano, I couldn't ask for more. Straight up organ/synth players may prefer semi-weighted or non-weighted action instead. I am used to the piano feel and I prefer it so its a non-issue for me. If thats an issue, connect a controller for organ or syth.
Its a bit of cash but worth it. This is a professional 88 key synth that should last for many decades when taken care of. Yes, its on the level of buying a top-of-the-line guitar or bass.
Jeff Branham from Pikeville, KY Submitted: 5/22/2012
Product Rating

This keyboard is just awesome in every way.
Yes. It is rock solid as is most all Yamaha boards.
The action is great, as well as all the sounds. Easy to get around.
Very easy to get around the basics, and deeper if you like.
Your general opinion of this product.
I Love it.
I Love it.
No doubt.
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