e long-standing mission of Suhr has been to bring the simplicity and tone of analog circuitry to today’s guitarists� e Suhr Discovery Analog Delay is the new revolutionary pedal, designed by Kevin Suhr� e Discovery Analog Delay is the rst of
its kind, for Suhr and the world�
Retaining the tone, vibe, and creative inspiration of iconic analog delay units, yet
adding the versatility of the most modern and expandable delay pedals available
today�
e nest analog delay packed with 127 savable preset spaces, Tap Tempo, High/Locut, with every parameter mappable to an expression pedal per preset, MIDI ins and
outs, and every parameter you could ask for� at’s just the beginning�
e Suhr Discovery Analog Delay is a product that has been years in the making�
We took our time with this one to make it as perfect as we could in the smallest
package, full of features that include a few no other analog delay has�
We knew we wanted an amazing bucket brigade style analog delay� We also knew
that having only one setting was not enough for the endless amounts of sounds that
could be achieved� at is why we allowed you to save up to 127 presets, recallable
via MIDI� All knobs are programmable for each preset, and can also be controlled
individually via MIDI� We didn’t stop there� We allowed you to program the expression pedal dierently for every preset to control every knob in any direction desired�
We didn’t stop there� We allowed you to dump all your presets to a MIDI Sysex le
for backup on a computer� You can even transfer presets between units�
Revision: 1.2 (7/1/2021)
5
Discovery Delay – TerminologyTerminology
Terminology
Here is a list of a few common terms used in this manual� Please familiarize yourself
with the terms you do not already know� Understanding these terms will better help
you understand how to use the Discovery Delay, or any delay for that matter�
Signal
A signal in this text refers to an audio signal, which is a representation of sound in
the form of changing level of electrical voltage� Such a signal can come from your
guitar pickups, through your guitar cable and into the Discovery� It may also come
from previous eect, or from your ampliers eects send�
Dry signal
e Dry signal refers to your unaected guitar signal, or whatever signal that has
been connected to the input of the Discovery� is has no delay eect on it� When
the pedal is bypassed, all you are hearing is the dry signal�
Wet Signal
e Wet signal refers to the delay eect itself only without any dry signal� A delay
makes a copy of your dry signal, and plays it a certain amount of time later, which
creates the wet signal� e Dry and Wet signals are then mixed to form the nal output signal�
Repeats
Repeats is a term used among users of Delay eects that refers to the actual repeated
dry signal that make up the wet signal� e wet signal is a repeated copy of the dry
signal that feedbacks into itself and keeps repeating what you play into it� Repeats
are also commonly referred to as “echoes”
Milliseconds (ms)
A millisecond is 1/1000 of a second� Milliseconds are abbreviated as “ms”� us, it
takes 1000 ms to make up 1 whole second�
Revision: 1.2 (7/1/2021)
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Discovery Delay – TerminologyTerminology
Beats Per Minute (BPM)
‘Beats Per Minute’ refers to the tempo (speed) of a piece of music� A beat refers to a
quarter note in a measure, so 4 beats would equal 1 measure� 120 BPM would equate
to 120 quarter notes in a minute if only quarter notes were played for a whole minute�
Modulation
To modulate is to continually change the value of a parameter� In the case of this
delay, the parameter that is being continually altered is the delay time� e delay
time is “wiggled” a certain amount of time before and aer the center time, causing
a change in pitch in the wet signal� e amount of wiggle is determined by the Speed
and Depth controls� When this changing pitch on the wet signal is mixed with the
dry signal, the result is a chorus type eect, which sounds like multiple voices are being played at once�
MIDI
MIDI is an abbreviation for Musical Instrument Digital Interface� is is a standard
of digital communication between musical instrument devices that was developed in
the 1980’s in collaboration with a few music manufacturers� Today, it is the leading
communication protocol between musical instruments� MIDI allows you to change
presets and control knob positions on the Discovery from any device that can send
MIDI information�
e display shows multiple information from milliseconds of the delay time (ms), to the BPM (by holding the division switch), to the preset number and global menu navigation.
2. Preset/Select/Hold To Edit Buttons
is switch allows you to access and save your presets as well navigate global set-tings.
3. Up & Down Buttons
ese can be used to increment or decrement what you see on the display, whether that be the BPM, ms, or the options in the startup menu.
4. Mix Knob
e mix is 100% dry (no eect) when counterclockwise. When fully clockwise, it is 100% wet (only eect). When in the center, it is the 100% dry and 100% wet signals.
e low cut reduces bass from the delayed signal only� Fully counter-clockwise is no
low (bass) cut� Full clockwise results in maximum low cut�
6. Hi Cut Knob:
e high cut reduces high frequencies from the delayed signal� Fully counter-clockwise is the brightest and clearest tone (no high-cut), clockwise will be the darkest�
7. Bypass LED
Turns on when the pedal eect is on and o when the pedal is in bypass mode�
8. Bypass/Preset Down Switch:
e bypass switch engages or disengages the eect� Factory default is true bypass
mode� (Refer to manual to switch between true or buered bypass mode�)
9. Time Division LEDs
Indicates which of the 5 time divisions are selected� 1/4 - Quarter Note, d1/8 - Dotted Eighth-Note, 1/8 - Eighth-Note, 1/3 - Triplet and 1/16 - Sixteenth-Note�
10. Division Button
e Division button selects one of the 5 divisions� Holding the division button will
toggle the display to show milliseconds (ms) or BPM of the delay time� A dot in the
bottom right corner of the display denotes BPM�
11. Regen Knob
e Regen controls how long your delay echoes last for� Full clockwise position will
result in continuous oscillations�
e time knob can be used to alter the milliseconds (in 5ms increments) or BPM
(range 55-250BPM), depending on which is shown on the display� e range in milliseconds accessed by the knob is 40ms - 1100ms� You can manually adjust millisecond/BPM times (in 1ms increments) with the [▲] and [▼] buttons to get specic
delay times�
13. Modulation Depth Knob
e depth knob controls how intense the modulation of the delay is�
14. Modulation Waveform Display & Select Button
is button selects one of the 3 waveforms (Triangle, Sine, and Square) to modulate
the delay time with�
15. Modulation Speed Knob
e speed knob controls the speed of a LFO (low frequency oscillator), which controls the delay time around the center of what is displayed on the display� is results
in a chorus-type eect�
16. Tempo LED
is LED ashes at the tempo of the delay time (Milliseconds)�
17. Tap-Tempo Switch
Tap more than once to set the quarter-note delay time�
e Discovery Analog Delay requires an 18V, center negative power supply with 250mA of available current. For more details, refer to the technical specications on
page 37.
2. External Switch (Stereo TRS 1/8”)
e External Switch allows you to plug in a TRS 1/8” (3.5mm) cable to connect a momentary dual foot switch to control the pedal in one of 3 modes.
It can be used to change presets, jump across presets, externally control the bypass and tap switches, and send MIDI program changes.
For more details about the dierent modes for the external switch and how to set it up, refer to page 32.
3. TAP External Switch (Mono TS 1/4”)
e TAP jack takes a momentary foot switch to externally control the delay time tap tempo.
e expression pedal input allows you to connect a low impedance 10K ohm expression pedal to control all the knobs per preset� For details on how to use the mapping
process for the expression pedal, refer to page 20�
6. Input (Mono TS 1/4”)
e input should be connected to your guitar, the previous eects output, or the effects send of an amplier or mixer�
7. MIDI In (5 PIN DIN)
e MIDI IN uses the standard DIN 5 connection for MIDI communication� Uses
for this are changing presets, syncing delay time to MIDI clock, and controlling all
parameters� Refer to the MIDI section in this manual for more information
8. MIDI Out/Thru (5 PIN DIN)
e MIDI OUT/THRU jack is used to pass MIDI communication from the MIDI IN
jack to the next device� Depending on the global settings, this output can be set as a
hardware through for ultra low latency when no MIDI information is to be generated from the Discovery itself� When set as an output, the Discovery delay can send its
own messages such as Program changes and Controller changes� is can be used to
control other pedals� For more information, refer to the MIDI section on page 23�
Revision: 1.2 (7/1/2021)
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