Desktop analog ring modulator with internal oscillator

  • Low noise preamp
  • Frequency modulation with envelope follower, LFO and/or Sample+Hold
  • 1V/oct minijack input and 2nd input for external frequency control
  • Footswitch input – true bypass
  • Adjustable output gain
  • Bicolor LED for visual AM control
  • Battery (6x AA) or with external DC supply
  • Unique handmade casing

The XR1-E is an analog ring modulator with internal oscillator, preamp and LFO in a nice handmade casing. With a wide variety of control possibilties, the range of sound options reaches from the typical ring modulation and tremolo-like waveforms to glissando and random-like patterns or distortion.
An integrated low-noise preamp (with much headroom) allows to adapt any kind of input sources such as microphones, e-guitars or electronic instruments. A bicolor LED provides optical control of the oscillator and preamp's overdrive behaviour.
The frequency is manually adjustable by knobs for coarse and fine tuning and a switch for high or low (tremolo) range.  An envelope follower, a LFO and a Sample+Hold may be used for frequency modulation. The envelope CV can be optionally replaced by an external signal or a voltage from a foot pedal, appliable on a jack on the rear. Further, a minijack 1V/oct. input is available for controlling the XR1-E’s frequency by an external CV.
The XR1-E has a footswitch input to apply an external footswitch (not included) for switching between the effect and the original (true bypass). The output level of the processed signal can be aligned by a knob on the back.
Due to the ability of battery operation the device is independent from external power supply, but there is a socket for a DC adaptor too (DC adaptor not included).
The XR1-E is based on a function generator chip, which warm and smooth sound makes it excellently suitable for ring modulation and electronic music.Please note: Due to the handmade manufacturing process, there may be some little scratches/irregularities in the casing’s surface.


  • Oscillator frequency ca 0,2 - 18000 Hz
  • Max. input voltage: 6-8Vpp
  • Power supply 6x 1,5V AA mignon cells (included) or external 6-15V 200mA DC adaptor (not included)
  • Dimensions  14,2 x 8,3 x 11,0 cm
  • Weight ca 800 gr

ConditionBrand New (New)
Brand New items are sold by an authorized dealer or original builder and include all original packaging.Learn more
  • XR1-E
Made In
  • Germany

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Berlin, Germany
Joined Reverb:2019

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