Alesis Fusion 6HD 61-Note Keyboard Workstation  

Product #705530

FREE SHIPPING on Almost Everything

Top Rated


Item Note:

This product has been discontinued but may be available as a Open Box item.

Similar Items


The Alesis Fusion is ready to be the future of your home studio with constantly evolving sounds and updated OS!

The Fusion 6HD boasts a revolutionary operating system, the Fusion OS, that is constantly being refined by Alesis and its developers to bring you the ultimate workstation available. It also brings together 4 different synthesis types with a 61-note semi-weighted keyboard, 8-channel hard disk recording, sampling, effects, lots of expansion possibilities, and full-blown sequencing in one awe-inspiring machine.

At the heart of the Fusion 6HD is the Coldfire processor surrounded by 7 high-performance DSPs, giving you 4 synthesis types: sample playback, virtual analog, FM synthesis, and physical modeling. The sample playback synth type provides ultrarealistic play for instruments like grand pianos, drums, and guitars, etc. You can even make your own custom synth instruments by loading your own samples with the onboard sampler. The virtual analog synth brings you the sounds from the award-winning Ion and Micron virtual analog synths, as well as the actual-analog A6 Andromeda. FM synthesis gives you the ability to emulate many well known synthesizers of the 80s. For the physical modeling section Alesis uses the most advanced technology available today for synthesizing wind and reed instruments with incredible clarity.

The Fusion is the only workstation of its kind that can save and load programs off a hard disk (or the removable CompactFlash memory). By storing all your sounds on the internal disk you'll always have your programs available to you. You'll never have to load samples off a slow CD-ROM or floppy-disk.

You can also record up to 6 channels of 24-bit audio to the 40GB hard drive. The internal sequencer lets you edit your MIDI and multitrack recordings together just like on a computer. DSP effects can be applied to MIDI, audio, or both. You can transfer your mixdown to a computer via USB 2.0.

Upgradeability includes internal RAM (up to 192MB).

An incredible unit for professional recording studios, project or home studio, and even live keyboard players.

Latest Fusion update!

Fusion OS is a completely upgradeable platform that will continue to improve with each and every release. There are now hundreds of new program sounds, mixes, and arpeggiator patterns, with more free sounds available via download. This update as well as all future updates to the software and the sounds can be found at:,59,0,0,1,0

Please contact your Alesis tech support representative with any questions.


  • Fusion OS workstation
  • 61-note semi-weighted keyboard
  • 4 integrated synthesis types: sample playback, virtual analog, FM, and physical modeling
  • 8-track, 24-bit hard disk recording
  • High-definition 24-bit sampler
  • Comprehensive sample waveform editing
  • 64MB sampler RAM (up to 192MB)
  • 32-track MIDI sequencer
  • Integrated multichannel digital audio playback
  • Save and load programs off hard disk or Compact Flash
  • Onboard grand piano based on acclaimed Holy Grail Piano by Q Up Arts
  • Storage: 40GB hard drive, USB 2.0, CompactFlash, and the optional external Fusion drive CDR, DVD storage, and/or external hard disk
  • Assignable buttons and 360° knobs
  • Programmable arpeggiator with standard, phrase, and drum machine playback

Fusion 6HD 61-Note Keyboard Workstation Specifications:

  • 35-1/2"W x 4"H x 14"D
  • 25 lbs.
  • Tone generator: Fusion Engine Synthesis - Sample Playback, Virtual Analog, FM,
  • Physical Modeling
  • Polyphony: Dynamic processor allocation, up to 180 voices of sample playback
  • Multitimbral capacity: Mix - 8 internal/16 external; Song - 16 internal/16 external
  • Waveforms- tones: 120MB (when converted to 16-bit linear format)
  • Sounds: 800 preset instruments, 64 preset drum kits, 128 GM programs, 8 GM drum kits
  • Mixes: 200 mixes
  • Filters: 13 types
  • Effects- types and amt: 20 Reverbs, 10 Chorus, 50 Insert Effects, 4 Band EQ (low shelf, low, mid, high mid, Hi shelf
  • Multi-samples (waveform capacity): 128 samples per Multisample
  • Sampling sources: analog input L/R, stereo output (resampling)
  • A/D conversion: 24-bit, 64X oversampling
  • D/A conversion: 24-bit, 128X oversampling
  • Sampling frequencies: 44.1kHz
  • Memory: 64MB installed, optional expansion to 192MB
  • Sampling time: 11 min, 53 sec (onboard memory); 37 min, 15 sec (expansion memory)
  • Sample formats: Alesis format, wav
  • Sequencer: capacity based on HD limitations, 480 ppq note resolution, 32 tracks, 1000 preset arpeggios, unlimited user arpeggios, SMF sequence format
  • Controllers: Pitch Bend Wheel, Modulation Wheel, Aftertouch, Assignable Control Knobs (4), Assignable Trigger Buttons (4), Assignable Switches (2)
  • Display: 240 x 128 backlit LCD
  • External storage: CompactFlash Type I and Type II, SATA HD and CDRW
  • Connectors: stereo input 1/4" L-Mono/R, 1/4" stereo headphone jack, 1/4" stereo main output (L/R), 1/4" stereo aux output (L/R), S/PDIF output (coax/optical), optical ADAT output, MIDI I/O/Thru, sustain pedal, footswitch, expression pedal, USB (to host), 8 - 1/4" recording inputs, SATA external drive, AC power
  • Power consumption: 50W
review resources
write a review


by PowerReviews

(based on 2 reviews)

Ratings Distribution

  • 5 Stars



  • 4 Stars



  • 3 Stars



  • 2 Stars



  • 1 Stars



Reviewed by 2 customers

Displaying reviews 1-2

Back to top

(37 of 58 customers found this review helpful)


Great, but update immediately!


from Atlanta

I bought this board so I could make beats and incorporate real vocals into them. It works great for this, as you just pick one of the sequencer tracks to be "Audio", and you press play and record! It really is that easy. At first, I was not digging the sounds, but I downloaded the new sound bank (Electronica I believe), and now I'm totally digging the sounds. Although, when I listen to some of them, I have to say "who would use that?" I guess some people would hear some of the sounds that I am using and say the same thing! All depends on your taste. I have not used the sampler yet, but it seems pretty easy.

Comment on this reviewHelp Icon

(34 of 58 customers found this review helpful)


Great bang for buck, sounds could be better


from Tampa Bay, FL

I recently purchased the new Alesis fusion, and in general, I am very happy with it. I play in many different environments, and the fact that I can record REAL audio into this board and incorporate it into my sequences has been VERY cool. I have started recording background vocals into it (doing the overdubs myself), as well as recording some real instruments into it-For example, I had my friend play the Saxophone parts for "Baker Street", and "Turn The Page", because I always thought playing the parts on a "fake" keyboard sax sounded cheesy. That worked GREAT! It sounds like the record, and its part of my sequence. Very cool. Speaking of the sequencer, it's fairly easy to operate. I had a few bugs in the original version that I got from 123, but I downloaded the new software and everything seems to be fine. The effects sound really good, and there are plenty of them for what I need to do. At first I was a little freaked out by the fact that it has no disc drive or CD burner, but the hard drive has basically an unlimited amount of notes that you can use, and I backed everything up to my computer using the USB port. The manual is OK...A little confusing at times, but I guess every company does things differently, and after a while, I became familiar with the way Alesis does things, and it all makes sense now! The keyboard itself LOOKS really cool (in my opinion!), and it is built great. VERY solid, and the keybed is very nice. The only thing that I wasn't completely knocked out by was the stock sounds. I have since downloaded some of the new sounds from the website, and they are much better. I know that Alesis has an open architecture on this synth, so they should be offering free sounds on a regular basis. I'm pretty sure that there is no limit to the amount of sound banks you can have on board (since they are stored to the hard drive and the HD is 40 GIGS). All in all, I would recommend this board, ESPECIALLY if the idea of having real audio files along with your sequences appeals to you. I know that it certainly appeals to me, and I have just started scratching the surface of adding real instruments and vocals to my stuff. The only other keyboard that will do what the Fusion does is the Korg Oasis. I'm not saying the Alesis board sounds as good as the Oasis, but then again, the Oasis is 8 grand, and most of the stuff I am doing is playing live, and by the time it gets out to the audience, I would bet that they both sound about the same!

Comment on this reviewHelp Icon

Displaying reviews 1-2

Back to top