Ensoniq ASR-X Pro

Ensoniq ASRxPro Image

The ASR-X Pro Resampling Production Studio. An enhanced update to the ASR-X, the ASR-X Pro is a sampling, synthesizer, sequencer and effects studio in a single tabletop unit. For a machine that's competing with the Akai MPC3000, the ASR-X Pro is a worthy opponent. It's got professional sampler specifications, and easy yet professional sample editing features. Process your samples with modern edit functions including copying, truncating, reduce bits, scaling, normalizing and inverting. It has enough built-in effects to sweeten your samples with: EQ, Reverb, Chorus, Flanger, DDL, Distortion, Tunable Speaker, Chatter Box, Vocal Morph, and Auto-Wah. Sequencing is also easy and hands-on. Microscopic Tempo control and resolution allow for punchy groovy sequences with plenty of feel and note capacity. There are also independent dual multi-mode dynamic digital filters with low-pass, high-pass, variable bandwidth band-pass, resonant low-pass and resonant band-pass.

What separates the ASR-X Pro from the ASR-X? The Pro now offers a SCSI interface for limitless storage to disk or drive. A cool new Flash OS system means you can upgrade it simply by inserting a floppy, no messing with ROM chips! There's a new Stomper program that synthesizes phatt analog drum machine sounds (a built-in drum machine) - giving the MPC3000 a run for its groove. Memory can be expanded to a whopping 66MB for over 12 minutes (mono) sampling time. There is also a very cool Resampling technology that allows you to digitally resample sounds, loops or sequences with any effects and tweaks you've applied back into itself. Optional upgrades beside memory include the ESP-2 effects chip, EXP 24MB sound and wave expansion board and the X-8 eight output expander. The ASR-X Pro is compatible with virtually everything including most sound libraries and sampler libraries.

Lookup Ensoniq ASR-X Pro Prices

The link above will take you to an eBay search for this synth to see active listings with more images, specs and information. If you don't find it there, try looking in our forum marketplace. Our marketplace gets thousands of visits every week so make sure to check back often if you want to buy or sell a synth.

Related forum topics


Are you looking to buy or sell a Ensoniq ASR-X Pro? Post an ad in Gear For Sale or a request in Gear Wanted. For spare parts and repair services check out Gear Services & Other Goods. Our forums also has a Buyer’s Guide section where you can ask for advice on buying synthesizers.

24 Visitor comments
October 31, 2011 @ 6:37 pm
If you own one of these, you get used to seeing "please stop first". I'm amazed that you can't switch between patterns in real time. It would appear that you would have to copy individual patterns over and over to do your knob mutes and such and then chain them together in song mode. The effects are awesome. Sampling is easy. Sample editing is deep. The pads feel clunky but offer an interesting alternative to the Akai MPC-style pads. I keep on reading that you can replace the floppy, but why bother when the sequencer is so flawed?
Dean Sherry
July 7, 2011 @ 5:48 am
I have had many hours with this classic unit it's got some amazing sounds & functionality. But, due 2 studio upgrades, I am now selling my Ensoniq ASR-X Pro sampler/sequencer workstation+ aluminium flightcase (Jul2011).
The machine is in pristine condition w/ power cable & perfectly maintained in a smoke-free studio in Ireland.
Will ship internationally and rather to those that appreciate this item.
For sale as advertised on the link below, if anyone's interested...
http://www.adverts.ie/pro-audio/ensoniq-asr-x-pro-resampling-production-workstat ion-vintage-synth/707051
June 4, 2011 @ 3:52 pm
scsicardreaders.com has cf drives and they work great on both the black and red x. get yours while they last.

oh yeah, the final 4.0 operating system is at the asr-x yahoo group in the files section. it's called 3.20 beta and is the real deal with xplode! autochop feature, direct cd sampling, soundfont support and other bug fixes. as a new owner i have to say i likey, i likey a lot! except not being able to turn off sample monitoring when you take a sample. i run it through my mixer with a mute and a send button and have to time it just right. i
November 15, 2010 @ 8:23 pm
Actually, it seems like polyphony was an issue as well (if not part of what made the sequencer seem to choke
November 15, 2010 @ 6:48 pm
Shoddy sequencers should be an Ensoniq trademark. I am a die-hard Ensoniq fan, Ive Owned an ESQ-1, a VFX-SD, an EPS, and the ASRX-PRO. My one complaint has always been with the sequencer.
(Well that and it seems like some of the older ones had issues with overheating and getting "glitchy" sometimes causing loss of work (save and save often became my motto).
But they have all sounded wonderful.
Post Comment!
VSE Rating


User Rating

Rated 3.84 (319 Votes)

  • Check Price
  • The link above will take you to an eBay search for this synth to see active listings. If you don't find it there, try looking in our forum marketplace or post a wanted classified.
  • Demos & Media
  • Audio Clip 1 - Some demos on the ASR-X Pro, from the Future Music CD, issue 77.

    Manual - Download the original owner's manual from SoundProgramming.net.

  • Specifications
  • Polyphony - 32 voices
  • Sampler - 44.1kHz; 20-bit A/D, 18-bit D/A, 16-bit Memory; Stereo or mono; Sample-time: 2MB standard (20.5 seconds max); expandable up to 66MB (13 minutes max)
  • Sequencer - 16 polyphonic tracks, Up to 128 Sequences, 384 PPQ clock resolution, Tap Tempo
  • Effects - Real time modulation of effects parameters; 40 algorithms with many programmable variations per effect and 5 Stereo busses: Insert, Light Reverb, Medium Reverb, Wet Reverb, Dry
  • Keyboard - 13 Velocity sensitive trigger pads
  • Memory - Disk: 1.4 MB Quad-density HD, 3.5" micro-floppy disk
  • Control - MIDI
  • Date Produced - 1998
  • Resources & Credits
  • Images from Ensoniq.

Errors or Corrections? Send them here.