EarthQuaker Devices Aurelius User manual

Aurelius™
Tri-Voice Chorus

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TABLE OF CONTENTS
3English
10 Español
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43 Polskie
51 Čeština

Welcome, fellow frequency chaser! Kudos to you for referring to the ocial
manual of this majestic Device rather than diving into its powers blindly. Or
equally likely, traveling down a YouTube pedal demo rabbit hole where you
eventually find yourself watching a tutorial on how to make gnocchi from
scratch at 3am. We can tell you’re a true tone aficionado, which is why we’re
going to be straight with you: you’re about to embark on a magical journey
with this mighty Aurelius™pedal in front of you.
This is not simply your run of the mill chorus pedal. This compact, beautifully
cased wonder is a three-mode chorus with six programmable presets and
expression control. Choose from Vibrato Mode, Chorus Mode, and Rotary Mode
and manipulate their Width, Rate, and Balance to achieve your ideal sound.
Shift seamlessly from one mode to another to cop a blend that is all your own.
One simple tap of the Preset (“Save/Recall”) switch and you can summon up to
six settings of your choosing at will. Feeling pretty powerful now, aren’t you?
Inspired by the 1970s CE-1 Chorus Ensemble pedal, this digital unit has been
tirelessly tweaked and fine-tuned to give you an all-encompassing chorus and
vibrato experience like nothing else. We even took it way back to the 1940s
and the advent of the Leslie speaker to boldly capture the sound of its rotating
bae system for the Rotary mode. We studied the way that the horn and the
rotor moved on Leslie speakers and emulated the phasing and speeds of the
low frequency oscillator, but we exaggerated the hell out of them to make it
sonically suitable for guitar, bass or your instrument of choice.
And by popular demand, like many of our pedals, we’ve equipped this with an
expression control so you can use any TRS expression pedal to manipulate
the Width, Rate or Balance. Put it in Vibrato Mode and you’ll have a really subtle
choruswith aseasickvibrato and alternate quickly between the twoseamlessly.
And that’s only one mode. The possibilities are endless. Think about it.
This world of chorus in a box will fit on any pedalboard and is so intuitive that
you most likely won’t have to refer to this manual ever again. So, if we don’t
see you back here, it’s been a pleasure and good luck with the gnocchi.
Each and every Aurelius is hand crafted in Akron, Ohio, USA and is inspected
by the spirit of speaker innovator Donald Leslie. 3

MODE V: CHORUS/VIBRATO
This mode is a familiar traditional chorus type eect that leans towards
vibrato with a triangle LFO modulating a short delay line. When the Balance
control is turned fully clockwise, the dry signal is removed and the eect
becomes a pitch vibrato.
WIDTH
Controls theamplitude ofthe LFOand determineshow widethe
pitch modulation will sweep.
RATE
Adjusts the speed of the LFO.
BALANCE
In Mode V, the Balance control adjusts the amount of pitch
modulation that is blended in with the dry signal. When the
Balance control is turned fully clockwise, the dry signal is
removed and the eect becomes a pitch vibrato.
MODE C: CHORUS/FLANGER
Mode C is a blend of chorus and flanger. It has more warmth and slower
rates than Mode V and uses a sine wave LFO to modulate the delay line. The
Width control plays a major role in this mode and determines which type of
modulation is more prominent.
WIDTH
Controls theamplitude ofthe LFOand determineshow widethe
pitch modulation will sweep. Higher Width settings have a more
pronounced flanging eect. When the Width control is turned
past the center point, feedback is gradually added and makes
the flanging eect more prominent.
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RATE
Controls the speed of the LFO.
BALANCE
In Mode C, the Balance control adjusts the level of the modulated
signal. Turn clockwise for a more pronounced eect.
MODE R: ROTARY CHORUS
Mode R is a rotary chorus eect modeled after the sound of a Leslie speaker
cabinet. This eect combines both amplitude and frequency modulation for
a Doppler eect.
WIDTH
Controls the amplitude of the LFO and determines how wide
the pitch modulation will sweep. Lower settings accentuate the
lower “woofer” frequencies and higher settings accentuate the
upper “horn” frequencies.
RATE
Controls the speed of the LFO.
BALANCE
In Mode R, the Balance control adjusts thewet/dry balanceof the
signal. Turn clockwise for a more pronounced and pulsing sub
frequency eect.
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GLOBAL FEATURES
Aurelius has two operating modes which are indicated by the color of the
Save/Recall switch LED.
GREEN = LIVE MODE
In Live Mode, the pedal will operate exactly where the controls
are set and any changes will have no eect on the presets
unless saved. The Save/Recall switch LED will stay static green.
RED = PRESET MODE
In Preset Mode, stored presets are selected using the Preset
switch, and the physical settings of the controls will be ignored.
The Save/Recall switch LED will stay static red.
AURELIUS COMES FACTORY SET TO START UP IN LIVE MODE.
PRESETS
Aurelius has six available preset slots for you to save and recall your favorite
settings. The settings for each of the three controls, the Mode switch and the
expression jack assignment can be saved and recalled in any of the slots.
Saving a preset:
1. Turn thePreset switchtothedesired locationyouwish to saveyour preset.
2. Dial in the settings you want to save. Remember; expression pedal
assignment and the selected Mode can also be saved!
3. Hold the Save/Recall switch down until the LED flashes between green
and red and then release.
4. Your preset is now saved!
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Recalling a preset:
Select the desired preset you wish to use with the Preset selector switch and
do one of the two following actions:
1. When the pedal is activated and the eect is in use, hold down the
footswitch for at least 0.75 seconds, and it will switch from Live Mode to
PresetMode.You canswitch between Live andPreset mode on thefly! Or:
2. Tap the lighted Save/Recall switch. The switch LED will turn from green to
red, indicating you are now in preset mode. Tap again and the switch LED
will turn from red to green indicating you are in live mode.
Editing/Overwriting a preset:
1. Once in Preset Mode (the lighted Save/Recall switch LED will be red), make
the desired changes to any of the controls in the selected preset. The Save/
Recall switch LED will begin to flash red, indicating a change has been
made to the stored preset. Any controls that are not changed will remain
as previously saved.
2. Hold the Save/Recall switch down until the LED flashes between green
and red and then release.
3. The Save/Recall switch LED will return to static red and the previous
preset has been overwritten.
Helpful preset tips:
• Dierent EXP assignments can be saved in each preset!
• Presets can be stored and overwritten when Aurelius is in Live Mode or
Preset Mode.
• To make changes to an existing preset, you must first be in Preset Mode
before making the desired changes.
• There is no undo for preset saving, so make sure you are not overwriting
your favorite sound, especially when you are saving presets from
Live Mode!
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EXPRESSION CONTROL
Use anyTRS expressionpedalto take control over the Width,Rate or Balance!
Aurelius ships with the EXP jack mapped to the Rate. Follow these steps to
reassign the EXP functionality:
1. Insert the expression pedal TRS plug into the EXP jack.
2. Place the expression pedal in the toe down position.
3. Turn the panel control on the Aurelius that you wish to put under control
of the expression pedal. It doesn’t matter how far or which direction you
turn the control.
4. Put the expression pedal in the heel down position.
5. This control is now assigned to the EXP jack and can be used with an
expression pedal!
Helpful expression assignment tips:
• If you turn the control that is assigned to the EXP jack while the expression
pedal is plugged in, the panel control will override the expression pedal
setting.The expression pedal will reassumecontrol thenexttime it isused.
• Dierent EXP assignments can be saved in each preset.
• You can use Control Voltage with the EXP jack! The CV range is 0 to 3.3v.
TRS expression pedal wiring:
Tip ...........................................Wiper
Ring.........................................+3.3V
Sleeve .................................. Ground
FLEXI-SWITCH®TECHNOLOGY
This device features Flexi-Switch Technology! This relay-based, true bypass
switching style allows you to simultaneously use momentary and latching-
style switching.
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• For standard latching operation: Tap the footswitch once to activate the
eect and then tap again to bypass.
• For momentary operation: With the eect o, hold the footswitch down
for as long as you’d like to use the eect. Once you release the switch, the
eect will be bypassed.
NOTE: HOLDING THE BYPASS SWITCH DOWN WHILE AURELIUS
ISACTIVATEDWILL SWITCH INTO THE SELECTED PRESET MODE!
Since the switching is relay-based, it requires power to pass signal.
POWER REQUIREMENTS
Current Draw.........................75 mA
This device takes a standard 9 volt DC power supply with a 2.1mm negative
center barrel. We recommend using a pedal-specific, transformer-isolated,
wall-wart power supply or a power supply with multiple isolated-outputs.
Pedals will make extra noise if there is ripple or unclean power. Switching-
type power supplies, daisy chains and non-pedal specific power supplies do
not always filter dirty power and may result in unwanted noise.
DO NOT RUN AT HIGHER VOLTAGES! YOU HAVE BEEN WARNED.
TECH SPECS
Input Impedance................. 500 kΩ
Output Impedance.................100 Ω
WARRANTY
This device has a limited lifetime warranty. If it breaks, we will fix it. Should you
encounter any issues, please visit www.earthquakerdevices.com/support.
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¡Bienvenido, amigo cazador de frecuencias! Felicidades por consultar el
manual oficial de este majestuoso dispositivo en lugar de zambullirse a
ciegas en todo su potencial. O lo que es igual de posible, de intentar encontrar
una demo de este pedal en YouTube que hará que finalmente se encuentre
disfrutando a las 3 de la mañana de un tutorial sobre cómo hacer ñoquis
desde cero. Podemos estar seguros de que usted es un verdadero fanático
del sonido, por lo que vamos a serle sinceros: está a punto de embarcarse en
un viaje mágico con este poderoso pedal Aurelius™que tiene delante suyo.
Verá, este no es simplemente un pedal de chorus común y corriente. Esta
maravilla compacta y bellamente montada es un chorus de tres modos con
seis presets programables y un control de expresión. Elija entre el modo
Vibrato (V),el modo Chorus (C)y el modo rotatorio (R)y manipulesu amplitud,
velocidad y balance para lograr su sonido perfecto. Cambie fácilmente de un
modo a otro para obtener una mezcla que sea totalmente suya. Un simple
toque del interruptor Preset (Save/Recall) y podrá invocar hasta seis ajustes a
su elección. Se siente ahora bastante poderoso, ¿verdad?
Inspirado en el pedal CE-1 Chorus Ensemble de los años 70, esta unidad
digital ha sido retocada una y otra vez para poner en sus manos una
experiencia de chorus y vibrato capaz de abarcarlo todo como ninguna
otra. Incluso le hacemos volver a los años 40 y al advenimiento del altavoz
Leslie para capturar de forma fiel y audaz el sonido de su sistema de baes
giratorios para el modo rotatorio. Estudiamos la manera en la que giraban
la trompeta y el rotor en los recintos Leslie y emulamos los efectos de fase
y velocidad del oscilador de bajas frecuencias, pero los hemos exagerado
muchísimo para que hacer que suene adecuado para una guitarra, bajo o el
instrumento que quiera.
Y ante la demanda popular y al igual que muchos de nuestros pedales, lo
hemos equipado con un control de expresión para que pueda usar cualquier
pedal de expresión TRS para manipular los parámetros Width, Rate o Balance.
Póngalo en el modo Vibrato y tendrá un chorus realmente sutil con un vibrato
mareante y podrá cambiar rápidamente entre los dos sin problemas. Y ese es
solo uno de los modos. Las posibilidades son infinitas. Piense en ello.
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