The XR1-E is a ring modulator with fixed internal modulation oscillator. The included low-noise preamp makes it specially suitable for instrument pickups or microphones; sensitivity of the preamp is adjustable from line-out to microphone levels.
The frequency of this ring modulation oscillator is variable by two knobs for coarse and fine tuning. In addition, there are two special options to modulate the oscillator’s frequency: Once by the internal LFO and second by an envelope follower, which varies the frequency dependent from the instrument input’s signal amplitude. The socket "Frequency CV in“ on the back side provides the ability to modulate the oscillator pitch with an external control voltage or by e.g. a foot pedal.
The XR1-E is battery operative and independent from external power supply; but if required, there is a DC jack on the back to connect an external power source, too.
On the input jack "Footswitch“ an external footwitch may be connected to choose between ‚dry and‚ wet. In the‚ dry‘ mode, the XR1-E offers true bypass functionality.
Heart of the XR1-E is an ancient function generator chip with amplitude modulation input. Its warm and brillant sound makes it excellently suitable for electronic music. Amplitude modulation results, with lower oscillator frequencies, in tremolo-like sounds; if the oscillator frequency is higher or almost the same as the input signal, the results are strange harmonies and disharmonies due to the fact that a ring modulator generates additional frequencies like summation and difference tones.
- For instrument or microphone
- Low noise preamp
- Coarse and fine frequency tuning
- Envelope follower and LFO for frequency modulation
- External frequency control by pedal or CV (1V/oct adjustable)
- Footswitch input (true bypass)
- Battery operative (battery lifetime ≈7-10h)
- Handmade steel casing
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- 6x AA Mignon cells or
- External power adaptor 6-15V, 100mA (not included)
- Hi: ≈ 8Hz – 18oooHz
- Lo: ≈ 0,2 Hz – 60Hz
- Impedance: ≈380kΩ
- Max. input voltage: 3,5Vpp
- 14,2cm x 8,3cm 11,0xcm