CG Products XR1-E Manual

XR1-E
Ring Modulation Oscillator
The XR1-E is an analog ring modulator with internal oscillator, preamp and LFO in a nice hand-
made casing.
Offering a wide variety of control options, it may be used to generate sounds 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) is allowing to adapt many kinds of input
sources such as microphones, e-guitars or electronic instruments.
Optical overview of the oscillator's and preamp's overdrive behaviour provides a bicolor LED.
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 on its front 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 rear.
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.
 Low noise preamp
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Bicolor LED for visual control
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Frequency modulation with envelope follower, LFO and/or Sample+Hold
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1V/oct minijack input and 2nd input for external frequency control
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Footswitch input – true bypass
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Output gain adjustable
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Battery (6x AA) or with external DC supply
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Unique handmade casing
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