Rolls 920 User Manual
PHASE SHIFTER / VIBRATO
MODEL RFX920
VIBRATO EFFECT
SPEED
DEPTH
REGEN
MIN
MAX
110
MIN
MAX
PWR
INPUT
OUTPUT
SPECIFICATIONS
Input Impedance: 470kΩ
Output Impedance: 50 Ω
Regeneration: 0 - 100%
Speed: .5Hz - 9Hz
Depth: 0 - 100%
Max Phase Shift: 1080 Degrees
Battery type: 9 Volt
Current Drain: 20 mA
Size: 5.25" x 3.5" x 2"
Weight: 1 lb.
RFX920
PhaseOVibe
LIMITED WARRANTY
This product is warranted to the original consumer purchaser to be free from
defects in materials and workmanship under normal installation, use and service for a
period of one (1) year from the date of purchase as shown on the purchaser’s receipt.
The obligation of Rolls Corporation under this warranty shall be limited to repair
or replacement (at our option), during the warranty period of any part which proves
defective in material or workmanship under normal installation, use and service, provided
the product is returned to Rolls Corporation, TRANSPORTATION CHARGES PREPAID. Products returned to us or to an authorized Service Center must be accompanied by
a copy of the purchase receipt. In the absence of such purchase receipt, the warranty
period shall be one (1) year from the date of manufacture.
ment, misuse, abuse, neglect, accident, destruction or alteration of the serial number,
improper electrical voltages or currents, repair, alteration or maintenance by any person or
party other than our own service facility or an authorized Service Center, or any use
violative of instructions furnished by us.
liabilities. ANY IMPLIED WARRANTIES, OBLIGATIONS, OR LIABILITIES,
INCLUDING BUT NOT LIMITED TO THE IMPLIED WARRANTIES OF MERCHANT ABILITY AND FITNESS FOR A PARTICULAR PURPOSE, SHALL BE
LIMITED IN DURATION TO THE ONE YEAR DURATION OF THIS WRITTEN
LIMITED WARRANTY. Some states do not allow limitations on how long an implied
warranty lasts, so the above limitation may not apply to you.
OR CONSEQUENTIAL DAMAGES FOR BREACH OF THIS OR ANY OTHER
WARRANTY, EXPRESSED OR IMPLIED, WHATSOEVER. Some states do not allow
the exclusion or limitation of special, incidental or consequential damages so the above
limitation or exclusion may not apply to you. This warranty gives you specific legal
rights, and you may also have other rights which vary from state to state.
This warranty shall be invalid if the product is damaged as a result of deface-
This one-year warranty is in lieu of all expressed warranties, obligations or
IN NO EVENT SHALL WE BE LIABLE FOR ANY SPECIAL, INCIDENTAL
Phaser/Vibrato
RFX
Salt Lake City, UT
11/95
OWNERS MANUAL
Thank you for purchasing the RFX920 PhaseO Vibe Phaser/Vibr ato pedal. The
PhaseOVibe is designed and manuf actured to pro vide y ears of useful service. It
features a six-stage regeneration circuit for a rich, full sounding phaser eff ect, and
with the touch of a switch, it becomes a smooth, classic vibrato effect. The
PhasOVibe output has sufficient pow er to drive a pair of headphones directly f or
personal monitoring.
EXAMPLE SETTINGS
Light Phase
VIBRATO EFFECT
Vibrato
INSPECTION
1. Unpac k and Inspect the RFX920 package .
Your RFX920 was carefully pack ed at the f actory in a protective carton. Nonetheless, be sure to examine the unit and the carton for any signs of damage that may
have occurred during shipping. If ob vious ph ysical damage is noticed, contact the
carrier immediately to make a damage claim. W e suggest sa ving the shipping
carton and packing materials for safely transporting the unit in the future.
2. Complete the Warranty Registration Card and return it to the factory .
DESCRIPTION
SPEED: Controls the rate at which the Phaser or Vibrato effect moves .
DEPTH: In technical terms - controls the amplitude of the LFO. In understandable
terms, it, in conjunction with the REGEN control, varies the amount of effect.
REGEN: Adjusts the amount of f eedbac k in the phasing circuit.
OPERATION
Shown below is an example of how to connect the RFX920.
110
SPEED
MIN
DEPTH
MAX
MIN
REGEN
Provides a subtle, shimmery
phasing effect.
Medium Phase
VIBRATO EFFECT
110
SPEED
Yields a classic, swirling
phasing effect.
MIN
DEPTH
MAX
MIN
REGEN
MAX
MAX
VIBRATO EFFECT
110
SPEED
MIN
DEPTH
MAX
MIN
REGEN
The RFX920 vibrato effect is
noticable only when used with
the above settings. The Depth
and Regen controls must be at
maximum. The Speed control
may vary from 60% to 100%
for a vintage tremolo effect.
MAX
VIBRATO EFFECT
MIN
110 MIN
DEPTH
SPEED
PHASE SHIFTER / VIBRATO
MODEL RFX920
OUTPUT
MAX
MAX
REGEN
Preamp
PWR
INPUT
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