WALRUS AUDIO Sloer Stereo Ambient Reverb Instruction Manual
- June 13, 2024
- WALRUS AUDIO
Table of Contents
Slöer
STEREO AMBIENT REVERB
Sloer Stereo Ambient Reverb
The Slöer Stereo Ambient Reverb allows players to create and save up to three
presets with wide, lush, modulated, sleepy and ambient soundscapes. Stocked
with five different algorithms specifically designed to invoke textures for
bringing dreams from your subconscious to reality.
9 volt DC, Center Negative • 100mA min
The use of an isolated power supply is recommended for powering all Walrus Audio Pedals.
Daisy chain power supplies are not recommended.
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This product comes with a limited lifetime warranty.
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Mono In / Mono Out
Use left input.
Use left output.
Mono In / Stereo Out
Use left input in.
Left input will feed the same input signal to the right channel when using
mono in.
Use left and right output. 
Stereo In / Stereo Out
Use left and right input.
Use left and right output.
Modes
Use the rotary switch to select one of five onboard algorithms.
DREAM
Lush reverb with a latching pad function. Press the sustain switch to latch
signal. Experiment with the X Fader to add vibrato over the pad. Press sustain
again and pad will decrease according to where the decay knob is set.
LIGHT
Bright reverb with an octave up shimmer. Create ethereal sounds with the X
Fader controlling how much shimmer is added to the reverb.
RAIN
Tippy and trippy, this program creates a unique effect with lower levels of
diffusion allowing the reverb delay taps to audibly create an echo like effect
within your reverb. Use the X Fader to set the amount of diffusion of the
delay taps, with lower X for more echo and higher X for a smoother sound.
DARK
Add a lower octave to your reverb trail. Create deep and wide atmospheric
sounds and channel nightmarish soundscapes. The X Fader sets the level of a -1
octave signal that feeds the reverb.
RISE
Auto-swell reverb for beautiful cinematic swells. Don’t rush it. Let it
breathe and gently wake up. The X Fader sets the amount of time it takes the
reverb to swell in after a note is played. Set lower for shorter rise times
and higher for longer rise times.
Note: Rise works best in front of an amp, not through an FX loop.
Wave shapes
With the pedal engaged, hold down the bypass switch and use the mode knob to
select the desired wave shape, and the depth knob to set the desired rate. The
bypass LED will flash at the rate of modulation while in the secondary mode.
The pedal remembers the wave shape and rate settings for the current preset
when saved, until the next time they are modified. The pedal also maintains
the algorithm and depth setting when modifying secondary functions.
SINE – Smooth and even pitch up and down modulation. A classic modulation
sound.
WARP – Asymmetric pitch up modulation similar to a warped vinyl record.
SINK – Asymmetric pitch down modulation for sinking detune similar to a
Biggby tremolo arm.
SQUARE – Symmetric square wave pitch up and down modulation for stepped
modulation. Hard edged transitions create unique modulation artifacts.
RANDOM – Randomized sample and hold style modulation.
Controls
Decay: Adjusts the length of the reverb decay. Go from tight short
reverb, at full counter clockwise, to long drawn out texture at full
clockwise.
Filter: Controls the tone of the reverb decay. Each algorithm includes a
low-pass filter optimized for that unique sound and the knob controls the
filter cutoff frequency. Turn the knob clockwise to open the filter for
brighter tones, and counter clockwise to close the filter resulting in a
darker tone.
Depth: Controls the amount of modulation applied to the reverb decay. Go
from no modulation, to nightmare inducing pitch bending at high settings.
– Secondary Function: Rate – Press and hold Bypass and turn the Depth
knob to control the speed of the modulation applied to the reverb decay.
The Bypass LED will blink at the rate of the modulation while in secondary
control mode.
Mix: Control the amount of wet/dry mix.
Fully left = dry.
Fully right = wet.
– Secondary Function: Pan – Press and hold bypass and turn the Mix knob
to control left/right panning of wet reverb signal and dry mix. Turning the
Mix knob counter clockwise to pan the wet signal to the left and clockwise
to pan to the right. Putting the Mix knob back at 12 o’clock is centered with
no panning. Range spans from subtle tilt to hard panned wet and dry signals.
Width: Control the width of the stereo field in the left and right
channels. All the way down is the least stereo width, running the two channels
as parallel mono. In the middle, the stereo diffusion starts to begin in the
reverb algorithms and the sound spreads out further. At the top position of
the toggle, the reverb is sending out unique signals and artifacts
individually to the left and right channels with maximum stereo width to the
left and right.
X: The X Fader changes jobs depending on which algorithm is selected.
DREAM – Sets the depth of vibrato applied to the reverb decay.
LIGHT – Sets the amount of +1 octave shimmer.
RAIN – Sets the diffusion of the audible delay taps.
DARK – Sets the level of a -1 octave signal that feeds the reverb.
RISE – Sets the amount of time it takes the reverb to swell in after a
note is played. Set lower for shorter rise times and higher for longer rise
times.
Stretch: Time stretch the reverb algorithm by lowering the sample rate*
of the onboard DSP chip, lengthening reverb time, darkening tonality, and
introducing unique sample-based artifacts.
- Sample rate is the frequency at which samples of incoming audio are passed through the system and at which DSP processes are updated.
Bypass Switch: Turns the effect on and off. It also features our smart
bypass switching. When the switch is in the off position, press and hold to
temporarily activate the effect to add a moment of reverb texture. Releasing
the switch turns the effect off, and fades it out.
Sustain Switch: When pressed, the decay switch ramps up the reverb trail
to maximum creating a long dreamy reverb trail, and then ramps back down to
the decay knob setting when released. In the “Dream” algorithm, the sustain
switch is latching. Press it once to capture and sustain the current reverb
decay for extremely long pad-like sounds. Press it again to let the reverb
trail taper off, based on the position of the decay knob.
Sustain LED: Indicates which preset has been selected, in the order of
Red (preset 1), Green (preset 2), and Blue (preset 3). When a preset parameter
is changed, the LED will turn purple indicating that a change has occurred.
The Sustain LED will flash when the Sustain Switch is activated.
Trails Mode: The Slöer can run in trails or no trails mode. In trails
mode, when you turn the pedal off, the reverb decay dies off naturally. In no
trails mode, the decay is abruptly cut off when you turn the pedal off. To
toggle between either mode, hold down the bypass switch for 1 second while
applying power to the pedal. Unplug power and repeat to toggle to the other
mode. Default is Trails mode.
Presets
Slöer has three on-board presets (Red, Green, Blue). If the same algorithm is
used in the next preset, the reverb sound spill over into the saved settings.
Scroll through the presets by pressing both stomp switches at the same time.
Each press of both stomp switches will load the next preset until you get back
to red.
To save a preset:
- Scroll to the preset color you want to save a new sound.
- Using the knobs and switches, dial in the desired reverb sound. The preset LED will turn purple indicating the preset has been modified. The preset LED will go back to the preset color when you cross the current saved setting.
- To save, hold down the Bypass and Sustain switches until the preset LED blinks. The preset is now saved and the LED will return to the preset color.
Factory Reset: To perform a factory reset, hold down both foot switches
while plugging in power to the pedal. Hold both switches until the Preset LED
starts to flash, then release both switches. The pedal will now be in Trails
mode with the three default presets loaded in the Red, Green and Blue presets.
The default factory presets are as follows:
RED – Dream Mode // Sine Wave
GREEN – Rain Mode // Sine Wave
BLUE – Light Mode // Sine Wave
IN MONO (L) – 1/4 inch TS cable from guitar/previous effects pedal.
IN STEREO (R) – 1/4 inch TS cable from previous stereo effects pedal.
OUT MONO (L) – 1/4 inch TS cable to amplifier left channel.
OUT STEREO (R) – 1/4 inch TS cable to amplifier right channel.
9v Jack – 9-volt DC, Center Negative, 100mA min.
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