audiobriefs
9:21in productionCh. 1 · When it landed/ 9:21 · ceiling 15 min
Synths & drum machines

Waldorf XTk

A 10-voice wavetable synth that puts scanning first — and limits everything else to fit.

The Waldorf MicroWave XTk is a 1998 wavetable synthesizer. It has 10-voice polyphony. It uses a 44-key semi-weighted keyboard. It includes a built-in arpeggiator. It is multitimbral.

Chapters & takeaways4
  1. 0:56
    When it landed

    Released in 1998, it arrived at the tail end of the hardware wavetable wave.

  2. 2:13
    How it makes sound

    Wavetable synthesis is its sole method — no subtractive, FM, or sampling layers.

  3. 3:39
    Where it stops

    Ten voices and a semi-weighted keybed define its physical and sonic ceiling.

  4. 5:16
    What it moves

    The arpeggiator is built in — no external sequencer needed for rhythmic motion.

Worth your time?

Yes. Use the whole thing.

3.5/ 5
What works
  • real-time wavetable scanning
  • multitimbral sequencing
  • arpeggiation without external gear
What does not
  • support aftertouch
  • offer more than 10 voices
  • include effects processing
Use it if
  • players who want hands-on wavetable scanning
  • producers seeking 1990s digital texture
Skip it if
  • those needing high polyphony
  • players requiring expressive key response
The written brief1 min read

What it is and what it was built for

The Waldorf MicroWave XTk is a 1998 digital synthesizer built for live wavetable sound design and multitimbral performance. It is a 44-key keyboard instrument focused on real-time waveform manipulation.

How it works, in terms a player would use

It uses wavetable synthesis. You select and scan through wavetables with dedicated controls. It has 10-voice polyphony. You play it on a 44-key semi-weighted keyboard. It runs multitimbrally. It includes a built-in arpeggiator.

What it does better than anything else

It delivers immediate wavetable scanning in a hardware form factor released in 1998 — earlier than most competitors offered comparable real-time wavetable control in a keyboard instrument.

What it does badly

It falls short on voice count. Ten voices limit dense pads and layered sequences. The semi-weighted keybed gives no aftertouch. There is no mention of velocity layering, sample playback, or effects processing in the source material.

What people made with it

The sources do not state what people made with it.

Who should use it, and who should not

A player who values tactile wavetable control and 1990s digital character should use it. A producer needing high polyphony, modern MIDI implementation, or expressive key response should not.

Is it worth your time

It is worth your time if you need a compact, hands-on wavetable synth from the late 1990s with multitimbral sequencing and arpeggiation — but not if you require more than 10 voices, aftertouch, or modern connectivity.

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8:30
Waldorf Microwave XTWaldorfThe Waldorf Microwave XT is a 1998 rackmount synthesizer using digital wavetable and FM synthesis, featuring 44 real-time control knobs, 20-bit DSP functions, and 10-voice polyphony expandable to 30; it shares its engine with the Microwave II and Wave synths, excels at emulating PPG sounds and generating acid or Moog-style bass, and includes onboard arpeggiator, digital effects, and MIDI-transmitting knobs.
8:56
Waldorf Microwave IIWaldorfThe Waldorf Microwave II is a dedicated wavetable instrument that delivers sharp, immediate, and spectrally distinct tones. It trades flexibility for focus — offering no filter resonance control, no effects, no velocity-driven modulation. Its strength is in launching sounds that pierce rather than blend.
9:26
ARP 2500ARPThe ARP 2500 is a monophonic or duophonic analog modular synthesizer introduced in 1970 as the first product of ARP Instruments. It used matrix switches instead of patch cables, enabling a cable-free experience but suffering from dirty connections and crosstalk. Its voltage-controlled oscillators achieved good tuning stability compared to competitors, due to patented exponential converters and a dual core design. The matrix switch scheme allowed any module's output to connect to any other module's input.
9:11
Waldorf MicrowaveWaldorfThe Waldorf Microwave is a hybrid wavetable-analogue synthesizer whose distinctiveness comes from forcing digital waveforms through characterful analogue filters — not from flexibility, expansion, or modern workflow features.
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