Waldorf Microwave

Waldorf Microwave Image

Looking back at the 1980's, one standout German synthesizer manufacturer was undoubtedly PPG (Palm Products GmbH), fueled by the technology in its wavetable based synthesizer, the Wave 2.x series. But like most vintage synth makers, the company was fading. Towards the end of the 1980's, PPG's technology and several of their employees joined Waldorf, another German manufacturer, and the first product to come out of this collaboration was the Microwave, released in 1989.

The Microwave was built upon what was the PPG Wave. A digital/analog hybrid in which digitally sampled wavetables are processed through analog VCA envelope and VCF (filter) sections producing a classic and warm yet highly complex sound. In fact, the Microwave uses the same wavetables from the PPG Wave 2.3! In effect, the Microwave sounds like the PPG, which in turn, sounds like synth-pioneers Tangerine Dream. To lower production costs and simultaneously attempt to make it more accessible to more musicians, the Microwave was packaged in a two-unit rack module. It's a powerful instrument in a small and unassuming package.

Unfortunately, Waldorf streamlined its design a little too far. With only a handful of on-board buttons and one parameter adjustment knob, editing sounds was quite cumbersome and usually required some sort of external editor to really dig into the power on-hand. Polyphony is slim but decent at 8-voices. There are 64 on-board memory patches, plus another 64 via external memory card. There are no on-board effects.

Over the years, the operating system (OS) could be upgraded via EPROM chips from Waldorf. These added additional wavetables, the options to create custom wavetables, a speech synthesizer, and numerous other improvements. The final OS was version 2.0, released in 1994.

A few years after the Microwave's introduction, a fully realized knob-laden hands-on version of the sort of wavetable technology used here came in the form of the Waldorf Wave. Designed for the high-end synth market, the Wave represented the pinnacle of Waldorf and PPG's wavetable synth technology in its time. However, the success the Microwave found among "every-day" musicians was not lost on Waldorf, leading them to release the much more common yet inferior Microwave II in 1997. The mkII did offer improved features in terms of effects and processing, however it was a fully digital DSP-driven machine and thus, lacked the warmth and character of the original Microwave. Microwaves have been used by Nine Inch Nails, Hardfloor, Jimmy Edgar, Vangelis, and Crystal Distortion.

Lookup Waldorf Microwave 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 Waldorf Microwave? 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.

19 Visitor comments
L jams
July 3, 2014 @ 1:21 am
One of my most loved synths ever. Don't know what it is about them but I always get something good out of the old girs. Both of mine are v2.0 mean green machines. Best investment I have made when it comes to audio junk. Would chuck just about anything else in my studio of a cliff to save them and i have some experience hardware. If you like solid sub put one in your racks.
June 27, 2014 @ 4:54 pm
monstrumWave1 editor is a MUST have for any microwave1 users. It was released about a year ago and runs on mac and linux as a standalone editor or VST.
Defective Nation
May 19, 2014 @ 9:16 pm
WOW, what a powerful beast this is, I have the Rev A running 1.25 but I am awaiting the 2.0 chips. Even with the OS 1.25 this synth is an incredibly powerful synth needing little in the way of outboard effects, even though it is digital the analog filters help make it sound far more substantial than you would expect. I have a Microwave 2 as well but comparing the two is a pointless task as one excels where the other fails and vice versa. Together you have the ability to create almost any sound you have heard on a record but the MW1 is like having a rack PPG Wave 2.3 and some. A++
March 1, 2014 @ 3:22 am
The MW1 (REV A) is the most underrated synth of all time, a programmers dream, get one because they'll get expensive and with a reason.
August 30, 2013 @ 2:39 am
Hello, check this track with just the MicroWave speech synthesizer and effect processor....

VSE Rating


User Rating

Rated 4.3 (514 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.
  • Specifications
  • Polyphony - 8 voices, 8-part multitimbral
  • Oscillators - 64 ROM wavetables and waveform samples
  • VCF - Analog Curtis CEM 24 dB/oct lowpass filter
  • VCA - 4 envelopes
  • Effects - None
  • Vocoder - Speech Synthesizer
  • Arpeg/Seq - None
  • Keyboard - None
  • Memory - 64 internal, 64 external card
  • Control - MIDI
  • Date Produced - 1989
  • Resources & Credits
  • Images from

    Review updated September 2011.

Errors or Corrections? Send them here.