Amptweaker SwirlPool User manual

Welcome! Thanks for purchasing your SwirlPool™
pedal, the first Amptweaker™ handmade product
designed with your advice. The SwirlPool tremolo
and vibrato pedal is based on 60ʻs amplifier circuits,
with added tweaks like adjustable synchronization and
dual speeds. Theblendedeffectscreatemanyunique
cool ʻswirlyʼtones, and it can even ramp between them
like a rotary speaker. Keep the ideas coming!
Cool Ideas:
•Dual Speed and Vibe controls, with ramp switch
•True Bypass switching–and Dual Speed footswitch
•Shared Tremolo (can be defeated for Speed 2)
•Sync switches slide Tremolo/Vibe LFOs apart
•Surf Vibe Tone and Jerky Tremolo switches
•Master Volume control to easily match bypassed levels
•Pre/Post selectable Universal Effects Loop
•Speed 2 Loop(pre) comes on with Speed 2 selection
•Works as separate Tremolo & Vibe via ʻhidden switch”
•LED lit knobs when using an 18V DC adapter
good tone comes from tweaking ...
TM
James Brown,
Amp Engineer
Welcome! Thanks for purchasing your SwirlPool™
pedal, another Amptweaker™
designed with

How does the work?
Volume-
a Master
Volume,
set for
boost or
balance
with
bypass
levels
Output
Jack–
connect to
the next
pedalʼs
input or
amp
True Bypass
Switch–directly
connects Input Jack
to the Output Jack,
bypassing loops.
Input Jack-
from guitar
or previous
effect. The
batteries
disconnect
when
unplugged
Tremolo–
increases
intensity,
shared by
both
Speeds 1
and 2
DC Jack-
use
18VDC
regulated
supply,
center pin
ground(-)
Return Return
Tremolo
Volume Tremolo Speed
SpeedUniversal LoopLoop
Vibe
1 2
Speed Vibe
Sync Tone RampSync
Jerky Surf Slow
Send Send
Battery
O
O
O
O
L
L
Speed 1 or 2 Switch–
toggles between Speed/
Vibe 1 and Speed/Vibe 2,
and bypasses Speed 2
Pre Loop (true bypass)
Jerky-
makes
Tremolo
jerky....
Ramp- turn
on ʻrotaryʼ
ramping
between
Speed/Vibe1
Vibe 1&2–
increases
intensity of
Vibrato (pitch)
effect, blending
it with the
Tremolo
(volume) effect.
Speed 1&2–
sets the LFO
speeds, and
affects both
Tremolo and
Vibrato speed
Sync switches–these 2 switches slide the Tremolo
& Vibrato LFOs apart for 4 different subtle variations
Surf–
changes
Ton e & Vibe
for a cool,
deeper
effect
and
Speed/Vibe2

LEDs–light up
the knobs if an
adapter is used
Battery
Switch– This
switch turns
the batteries
off when not in
use. No need
to unplug the
input- disabled
when using an
adapter
Specs:
•Input impedance: 240K Ohm (effect on)
•Output Impedance: 1K Ohm (effect on)
•Current: 43mA with 2-9V batteries, 62mA with 18V adapter(adapter adds
knob LEDs) battery life is limited...keep battery clips taped when not in use
•Adapter: 18VDC adapter w/5.5mm X 2.1mm positive barrel center ground(-)
•Housing: 14 Gauge galvanized steel
•Weight: 3 pounds, Dimensions: 5.625”W X 5”D X 2.125”H
Amptweaker, LLC, P.O. Box 387, Batavia, OH 45103
handmade in USA www.amptweaker.com
©2012 Amptweaker, LLC
Universal Effects Loop-
effects in this series loop
work when the SwirlPool
is On. A switch on the
bottom positions this
loop before or after the
Tremolo/Vibe circuit.
Battery Door–The battery door is held
closed by magnets, and can be opened
just by pulling out...no tools needed!
Speed 2 Loop– this Pre-
series loop is only active
when speed 2 is selected

TM
good tone comes from tweaking . . .
Other Tips & Tricks:
•Distortion or Overdrive pedals will sound brighter with the
Effects Loop set to Pre, but will increase the SwirlPoolʼs noise
if used set to Post...try both ways.
•A boost can be used in Speed 2 Loop to create a cool solo tone,
even if the Speed/Vibe is set the same as Speed 1.
•Try putting a 2nd modulation effect in Speed 2 for double Swirl!
•Use Pre/Effects Send as a switchable ʻcleanʼsend to another
effects chain, or amp...also works with Speed 2 loop to send only
when Speed 2 is on, for example to a rotary speaker cabinet.
•Select Post/Effects Send to use it as an auxiliary send to another
amp AFTER the SwirlPool for a bigger stereo sound when on.
•If either Vibe is down it ramps away as the speed changes!
Ramp Time- turn
clockwise for longer
ramping between
speed & vibe settings
Speed2 Tremolo
Disable- switch to the
right and Tremolo will
only work on Speed 1
Universal Loop Pre/
Post Switch-positions
the loop before or after
the SwirlPool
Hidden Tweaks under the battery compartment