Waldorf Microwave XT
The Microwave XT is a great big orange polyphonic rackmount synthesizer. While combining the power of the Wave and the compact design of Waldorf's Microwave II, the XT adds a bit of knob-laden heaven. At first glance the top section completely resembles the 2-space rackmount version of the Microwave II. And then there are three more rack-spaces full of knobs and lots of knobs means lots of control.
As far as enhancements, the XT model has 20-bit DSP functions but that's about it. Its true power and features lie in the 44 hands-on knobs which make editing in real-time quick, easy and perfect for performance and studio work. All of the knobs transmit MIDI information as well!
The Synthesizer engine is relatively the same as the Microwave II and Wave synths that came before it. Digital wavetable synthesis and FM synthesis in which there are 64 waves that are mixed and combined into new sounds. The Microwave XT can easily emulate the sounds of the PPG wavetable synths as well as create squelchy acid-303 lines or boomy Moog bass. Also onboard is a nice arpeggiator, digital effects and more. The Microwave XT is definitely a powerful rackmount synth that can generate some highly unique and quality sounds. It is used by Astral Projection, The Crystal Method, Mirwais, and Cirrus.
- Demos & Media
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Audio Clip 1 - A few demo patches from Future Music CD, issue 97.
Audio Clip 2 - Some funky and fresh sounds from the Microwave XT
Manual - Read or download the complete and original owner's manual (in PDF format).
- Specifications
- Polyphony - 10 voice (expandable to 30)
- Oscillators - 2 oscillators per voice of DSP wavetable synthesis; 1 Ring Mod; 1 Noise Source
- Memory - 256 internal patches, 64 external card
- Filter - 6/12/24 LP/HP, FM Filter, Sin (x)-LP, Dbl LP/HP, 24/12 BP, Band Stop, Waveshaper
- VCA - 1 VCA, VCA ADSR, 1 Free Envelope
- LFO - 2 LFO's, sine, tri, square, random, S&H
- Effects - Chorus, Flanger 1 & 2, Autowah BP, Autowah LP, Overdrive, Delay, Amp Mod
- Keyboard - none
- Arpeg/Seq - 16 steps, 128 patterns
- Control - MIDI (8-parts)
- Date Produced - 1998
- Resources & Credits
Images from Perfect Circuit Audio.
Thanks to Chris Coccia for providing some information.
Errors or Corrections? Send them here.



The XT was MADE and BEGGS to be tweaked, rather than a preset machine! Presets are simply great starting points for serious sound design! There's a reason and purpose for 44+ knobs and can hardly see having to go into a preset to change very simple parameters on a machine that's SO MUCH deeper than that as being a perceived negative. I know people that have owned XT from release that STILL are discovering new sonic possibilities and very often by happy "accidents". The mathmatic modifiers alone take the XT to alien soundscapes!
I do have a major issue , though: I would like to sync the LFO's to external midi clock and thiss can be done, but you have to change it manually for each and every preset. I wish there was a way to do this globally. And while we're at it: I'd like to turn those effects off globally too. They sound crap.