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XR1-E
Ring Modulation Oscillator
Analog Effect Device
The XR1-E is an analog ring modulator device with fixed sinus/triangle ring modulation
oscillator, suitable for both instrument or microphone input.
The oscillator pitch is adjustable by manual control over a wide range. In addition, the
frequency can be modulated by the integrated envelope follower (the oscillator pitch
changes dependent from the volume of the input signal) and LFO (low frequency oscillator)
as well as by an external CV signal or pedal. Original and effect signal are miscible by
controller, but the XR1-E also provides a footswitch input for external switching between
effect and original. Further, the ability of battery operation makes the instrument
independent from external power.
The XR1-E is based on an ancient function generator chip, which I am using since many
years for musical purposes due to its warm and smooth sound.
Low noise high impedance preamp
Ring modulation oscillator frequency range:
Envelope follower and LFO for frequency modulation
Frequency CV input (1V/oct adjustable), also suitable for pedal use
Optional footswitch control
Output attenuator switch
Battery operation or external DC power supply (wide voltage range: 6-15V)
Power dissipation: ca 600mW
High: 18Hz – 18000 Hz
Low: 0.15Hz – 120Hz
Berlin 2013
1
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Related Manuals for CG Products XR1-E
Summary of Contents for CG Products XR1-E
- Page 1 Further, the ability of battery operation makes the instrument independent from external power. The XR1-E is based on an ancient function generator chip, which I am using since many years for musical purposes due to its warm and smooth sound.
- Page 2 Quick start guide 1. Insert batteries or accus (6x AA Mignon) or connect a power adaptor . Set the power switch upwards to "On". Connect an amplifier, mixer etc. to the output . Set the attenuator switch for instrument amplifiers in the lower position "low" , for line-in input at a mixer to the upper "high"...
- Page 3 This means that the power adaptor still may consume some current for its own ("stand-by"). It is recommended to disconnect the adaptor completly from public power supply if the XR1-E is not in use for a of longer time . ② External Power Supply Input Allows the operation with an external standard DC power adaptor.
- Page 4 ⑩ Oscillator Frequency High/Low Switch Hi: ≈ 18Hz – 18000 Hz (Audio range) Lo: ≈ 0.15Hz – 120 Hz In "Hi" position, the oscillator is working in audio range. The amplitude modulation e.g. will generate additional audio frequencies – sum and difference tones of the input signal and the oscillator frequency.
- Page 5 In the latter case, a common passive foot pedal with 3pole jack should work. In combination with analog synthesizer equipment (e.g. sequencers, monophone keyboards), it is possible to calibrate the XR1-E on 1V/Oct. by adjusting knob To calibrate on 1V/Oct for tracking with other instruments, connect the external CV source to and set the pointer of the "Envelope/...
- Page 6 (Wikipedia). For example: If one or both of the input signals C or M is 0V, the output R will be also 0V. Note: In the case of the XR1-E the carrier signal is , provided by the internal oscillator.
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Page 7: Circuit Diagram
Circuit Diagram... - Page 8 Support Christian Günther Forster Str. 50 10999 Berlin cg@mandalamat.de Phone: ++49 30 61286299 Mobile ++49 178 7699267 www.cg-products.de © Christian Günther 2013...