Beatppl MODBAP MODULAR PER4MER User manual
MODBAP MODULAR BY BEATPPL
Modbap Modular is a line of eurorack modular synthesizers and electronic
music instruments by Beatppl. Founded by Corry Banks (Bboytech),
Modbap Modular was born of the Modbap Movement with a simple
mission to dev tools for beat driven hiphop leaning modular artists. It is
our goal to develop eurorack modules from the beatmaker’s perspective
while adding value for music makers of all genres.
It’s almost impossible to explain Modbap Modular without answering the
questions; “So, what is ModBap?” MODBAP is the fusion of modular
synthesis and boom-bap (or any form of hiphop) music production. The
term was created by BBoyTech as a denotation of his experiments with
modular synthesis and boombap music production. From that point
forward, a movement was born where like minded creatives built a
community around idea of Modbap. Modbap Modular is in effect, the
result of that movement in a space where we’d previously not existed.
B U I L T F O R E U R O R A C K
DOPE E N O U G H F O R B O O M B A P !
www.modbap.com
About Us
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Modbap Modular by Beatppl : Per4merContents
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About Us
PER4MER
Per4mer is a quad performance FX module consisting of delay, reverb,
glitch and tape stop effects triggered by the four dedicated arcade buttons
which can be manually operated or triggered from external gate inputs.
Each effect has a set of FX parameters that can be controlled using the
four rotary knobs or by the CV inputs. Compression and a color
processing effect with multiple presets are featured along with sidechain
and tap tempo options. External sidechain and clock can be connected to
interface with other gear. Per4mer packs a punch in a 14HP stereo FX
eurorack module form and is inspired by beatmaker/DJ performance
styles. Per4mer makes quick, fun, and easy work of engaging and
performing with smooth no click action arcade buttons.
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WHAT’S IN THE BOX?
The Per4mer package comes with the following items included:-
• Per4mer module.
• Eurorack IDC power ribbon cable
• 4 x 3m mounting screws.
• Quick reference guide.
• Sticker.
SPECIFICATION AND CORE FEATURES
• Module size. 3U, 14 HP, Depth 25mm
• +12V current demand 50mA.
• -12V current demand 50mA
• +5V current demand 0mA
• 4 Arcade buttons rated at 10 million presses.
• 4 knobs
• 4 performance effects (delay, reverb, glitch and tape stop)
• 2 processing effects (compression and color)
• 8 xed color presets (classic, lo, saturation, wax1, wax2, HP Fixed, LP Fixed,
white noise plus adjustable dry/wet mix control)
• Side chain input
• Tap tempo
• CV control over the FX knobs included CV targeting to performance effects
• Gate inputs for triggering and engaging the arcade FX buttons
• Reverse polarity protection on the power input.
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INSTALLATION
Follow the installation instructions carefully to avoid module or rack damage.
1. Ensure the power connection is disconnected before installing the device.
2. Identify a location in the rack to install the module. This needs 14HP of free
space.
3. Connect the 10 pin connector from the IDC ribbon power cable to the header on
the rear side of the module. Ensure that the pins are aligned correctly with the
red stripe on the ribbon conductor closest to the -12V pin on the header.
4. Insert the cable through the rack and connect the 16 pin side of the IDC ribbon
cable to the rack power supply header. Ensure that the pins are aligned
correctly with the red stripe on the ribbon conductor closest to the -12V pin on
the header.
5. Mount and position the module into the dedicated rack position.
6. Attach the 4 x M3 screws by screwing into the 4 locator holes and the rack
mount. Do not over tighten.
7. Power up the rack and observe the module start up.
Cable connected to PSU with
red conductor / edge aligned to
the -12V pin. This should be
labelled on the board.
-12V
-12V
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FX1 - Function is dependant on the selected performance effect.
Delay performance effect selection arcade activation button.
Clock input. External clock
Reverb performance effect selection arcade activation button.
Sidechain CV input for the compressor.
FX3- Function is dependant on the selected performance effect.
FX2 - Function is dependant on the selected performance effect.
Glitch performance effect selection arcade activation button.
Color selection button. Eight xed presets with LED selection indicator.
CV Inputs. Control the FX by CV Targeting which locks the CV input to the effect.
Tap tempo button. Tap several times to register an internal tempo BPM.
Gate Inputs. Activates each of the performance effects.
Tape stop performance effect selection arcade activation button.
Compressor selection button.
Audio Left / Right Inputs. Eurorack or line level.
Shift button. Access to secondary functions.
Audio Left / Right Outputs. Eurorack or line level.
FX4 - Function is dependant on the selected performance effect.
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DELAY
FX1 - Wet / Dry FX2 - Time FX3 - Feedback FX4 - Filter Cutoff
Mix between the original
dry signal and the effect
when delay mode is active.
Adjusts the delay time
when delay mode is active.
Adjusts the delay feedback
amount when delay is
active.
Feedback delay. Low pass
lter left of rotary (0-50%)
and high pass on the right
of rotary (>50%)
SHIFT + FX1 - Attack
Adjusts the attack time of
the delay envelope
between 5ms - 5sec
SHIFT + FX2 - Release
Adjusts the release time of
the delay envelope
between 5ms - 5sec
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TAPE STOP
FX1 - Wet / Dry FX2 - Time FX3 - Slope FX4 - Filter
Mix between the original
dry signal and the effect
when tape stop mode is
active.
Adjusts the tape speed and
pitch rate when tape stop is
active. Max 5 Sec.
Adjusts the shape of the
tape stop curve. Sweeps
from exponential to cubic.
Adjusts the low pass lter
cutoff frequency for tape
stop.
SHIFT + FX1 - Attack
Adjusts the attack time of
the tape stop envelope
between 5ms - 5sec
SHIFT + FX2 - Release
Adjusts the release time of
the tape stop envelope
between 5ms - 5sec
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GLITCH
FX1 - Wet / Dry FX2 - Size FX3 - Pitch FX4 - Reverse
Mix between the original
dry signal and the effect
when glitch mode is active.
Adjusts the time division of
the repeated slice when
glitch mode is active.
Adjusts the pitch +/- 2
octaves, centre neutral
when in glitch mode.
Changes between forward
(normal) - rotary position
<50% and reversed audio -
rotary position >50%.
SHIFT + FX1 - Attack
Adjusts the attack time of
the glitch envelope
between 5ms - 5sec
SHIFT + FX2 - Release
Adjusts the release time of
the glitch envelope
between 5ms - 5sec
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REVERB
FX1 - Wet / Dry FX2 - Time FX3 - Decay FX4 - Pre-delay
Mix between the original
dry signal and the effect
when reverb mode is
active.
Adjusts the reverb time
when reverb mode is
active.
Adjusts the reverb decay
time when reverb is active.
Adjusts the reverb pre-
delay time when reverb is
active.
SHIFT + FX1 - Attack
Adjusts the attack time of
the reverb envelope
between 5ms - 5sec
SHIFT + FX2 - Release
Adjusts the release time of
the reverb envelope
between 5ms - 5sec
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PERFORMANCE EFFECTS
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COMPRESSOR
Press COMP + Turn the FX rotary for the desired setting. SHIFT + COMP for sidechain input
FX1 - Threshold FX2 - Ratio FX3 - Attack Time FX4 - Release Time
Compressor threshold level
when in compressor mode.
Sets the compressor ratio
2:1, 3:1, 4:1, 8:1 12:1 when
in compressor mode.
Adjusts the compressor
attack time.
Adjusts the compressor
release time.
SHIFT + COMP + FX1 - Make Up Gain
Adjust the compressor make up gain level by holding Shift + Comp + Turn FX1.
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Save / Load Factory Reset CV Targeting FX Mix Mode
Press Shift + Tap. This will
save the current
conguration. Hold (> 2
seconds) Shift + Tap to
reload the previously saved
conguration.
Hold (> 2 seconds) Tap +
Color + Comp + Shift. This
will reset Per4mer to the
factory defaults.
Keep hold of Shift + Color.
Press the arcade button to
select (lit) or deselect (unlit)
for targeting. The CV input
will be ‘locked’ to the
performance effect FX
targeted.
Hold (>2 seconds) Shift +
Comp to enter / exit mix
mode. This will allow the
four FX controls to operate
as a Dry/Wet mix controls
for the performance effects.
COLOR
Press COLOR to select on and off and SHIFT + COLOR to cycle presets.
Classic LoFi Saturation Wax 1
Classic mode. Classic 12-
bit reduction, 16kHz
sample rate.
Purple LED indicator
LoFi Mode. Dirty 8-bit
reduction, 6kHz sample
rate.
Teal LED indicator
Saturation. Introduces soft
clipping and rolls off highs
to create warmth. Adds
punch and mid-low boost.
Orange LED indicator
Wax. Adds noise, clicks,
warble and hiss and
delivers a dusty vibe
reminiscent of vinyl.
Blue LED indicator
Wax 2 HP Fixed LP Fixed
White Noise
Wax. A more subtle noise,
clicks, prominent warble
and hiss.
Pink LED indicator
HP Fixed. A xed 500Hz
cutoff high pass lter.
Green LED indicator
LP Fixed. A xed 500Hz
cutoff low pass lter.
Red LED indicator
White Noise. Adds white
noise into the audio path.
White LED indicator
COLOR + FX1 - Color Mix
Mix (dry/wet) adjustment for the color effect. Wet - Fully clockwise 100%, Dry - Fully counter clockwise 100%
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PROCESSING EFFECTS
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Overview
Wet & Dry
FX1
FX1
FX1
FX1
FX1
FX1 Delay
Reverb
Tap
Glitch
Tape Stop
FX2
FX3
FX4
FX2
FX3
FX4
Audio In L
Audio Out L
Use SHIFT + FX1 & FX2 to access envelope
generator attack and release time parameters
Audio In R
Audio Out R
Wet & Dry
Wet & Dry
Color
Wet & Dry
TimeFX2
FX2
FX2
FX2
Size
Time
Compression
Time
Clock
Sidechain
Delay
Glitch
Tape Stop
Reverb
DecayFX3
FX3
FX3
FX3
Pitch
Feedback
Slope
Pre-delayFX4
FX4
FX4
FX4
Reverse
Cutoff
Filter
ReverbGlitch Delay
Tape Stop
Attack
Release
Attack
Release
Attack
Release
Attack
Release
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Modbap Modular by Beatppl : Per4merContents
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INPUT / OUTPUT ASSIGNMENT
CV and Gate are applied to the FX controls and the performance effect buttons
respectively. Dual mono audio inputs and outputs are provided which can accept
Eurorack and line level audio signals.
Delay Reverb Glitch Tape Stop
Gate >1V >1V >1V >1V
FX1 FX2 FX3 FX4
CV +/-5V +/-5V +/-5V +/-5V
Audio L Audio R
Input Mono * Mono
Output Mono Mono
Each FX Knob is assigned the specic parameter of the last selected effect. The CV targeting can
be locked to an effect by holding Shift + Color and pressing the desired effect arcade button.
* A single input connected to the left channel will normalise audio to the right input.
PER4MER
Per4mer has four performance effects which can be engaged individually
or simultaneously using the large front panel arcade buttons. Four rotary
knobs, FX1 - FX4 provide control over each of the four performance
effects parameters. The parameter set is unique to each effect and are
applied to the knobs based on the last effect selected. The design is
aimed at live performance and improvisation with endless and unique on
the y sounds and rhythmic dynamics. Audio inputs and outputs are
provided as mono connections paired for stereo. Per4mer not only
delivers a series of great effects and sound design possibilities, but it also
brings the creative, classic and well served techniques used by beat
makers and DJs to be applied in the world of eurorack modular especially
using the manual control options.
Manua Contro
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Manual Control
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GETTING STARTED
The basic principle of Per4mer is to feed in an audio input and to trigger on-the-y
effects, bringing DJ style live improvisation to a modular environment. Effects can
be triggered simultaneously or individually where an inspiring effect palette
combines to generate unique creative beats and melodies.
Basic Operation Workow
Manual Control
Select an effect by pressing
its arcade button. Press shift
+ effect to latch it on.
Adjust FX1 to set the effect
mix or curve for tape stop.
Adjust Shift + FX1 to set
the envelope attack.
Adjust Shift + FX2 to set
the envelope release.
Adjust the desired effect parameters FX2, FX3, FX4. These are
dependant on the effect selected. Option to control with external
CV and to set the CV Target which locks input to effects.
Option to add a color
effect to the audio
Select and adjust
compression
Select Effect Wet / Dry
Effect Parameters
Color Compression
Envelope
E
S
Iterate settings, adjust, tweak
and turn to test and experiment
and nd a satisfactory sound.
Also add additional effects
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Manual Control
Basic Operation.
PRESS - Trigger the effect momentarily.
HOLD - Trigger the effect continuously.
SHIFT + PRESS - Latch the effect on / off.
Trigger can be applied using an external gate.
Performance effect arcade buttons.
TURN - Adjust a selected effects primary parameter.
SHIFT + TURN - Adjust the secondary parameter.
Control can be applied using an external CV.
Performance / Processing FX controls.
PRESS - Color on (LED on), off (LED Off).
SHIFT + PRESS - Cycle through multiple color presets.
COLOR + FX1 for Dry / Wet Mix.
PRESS - Compressor on (LED on), off (LED Off).
SHIFT + PRESS - Cycle the sidechain input options.
HOLD + TURN FX to adjust compressor settings.
SHIFT + COMP + FX1 - Make Up Gain
Color processing effects
Compressor processing effects
Tap button. Tap (twice minimum) to set a BPM.
Shift Button. Hold along with another button for secondary options.
General buttons
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Manual Control
AUDIO INPUTS AND OUTPUTS
Per4mer has stereo functionality provided by 2 mono audio inputs which are the
source for the left and right audio signal to be processed. The processed signal is
fed to the audio left and right outputs. Both input and output connections take
3.5mm / 1/8th Inch TS (Tip & Sleeve) audio jack plugs.
2 x Mono Audio Inputs.
2 x Mono Audio Outputs.
Note: Per4mer operates with both Line or Eurorack Level audio signals
Standard mono 3.5mm TS
jack patch cables
When only a single connection is made into the
left input the left audio normalizes also to the
right audio input.
