LOOPERS HAVE BEEN GAINING IN POPULARITY for at least a decade, and manufacturers have responded
with scores of products ranging from micro-pedals to
large-footprint superloopers to high-end rackmounted
units (not to mention software loopers). These products
fall roughly into two categories: those that facilitate
prerecording loops to serve as backing tracks either live
or for practice (typically with plentiful memory slots),
and those that focus more on features of interest to “live
looping” artists that tend to record loops on the fly and
want as much realtime creative flexibility as possible.
The Infinity Looper falls firmly into the latter category,
though with a few nods to the former.
Nerdy stuff first. As with all Pigtronix products, the
Infinity sports exceptional specs and a few fresh ideas,
courtesy of celebrated analog circuit designer Howard
Davis, DSP guru Roy Heasman, and sonic mastermind David
Koltai. The pedal records stereo audio at 24-bit/48kHz
in the WAV format, and the pedal’s powerful DSP dramatically
reduces response time—something critical in
a looping pedal. The Infinity comes loaded with an 8GB
microSD memory card mounted inside the pedal, which
yields two hours of total recording time, but those who
prefer their loops super long can install cards with up to 32GB of memory (do the math). Minimum loop
recording time is 2.5 seconds. Loops may be
saved to any of nine Presets (internal memory
locations), and also transferred to and from (in
nearly any audio file format) a computer via a
micro-USB jack (cable included). The Infinity is
also one of the only loopers with analog pass
through, meaning only the looped audio passes
through the converter.
At the heart of the Infinity are two independent
stereo loopers—labeled Loop 1 and Loop
2—each of which has its own footswitch and
Volume control. The two loops may be configured
to run in parallel, serially, and even discretely.
In Parallel mode they run simultaneously, and in
Serial mode they run one at a time, so you can
switch between them to create, say, verse/chorus
song arrangements. Further, parallel loops may
run freely (unsynchronized) or synchronized
using Sync Multi, which gives you the option of
making Loop 2 the same length as Loop 1 or a
multiple (x2, x3, x4, or x6) of that length. Rather
than determining what that multiple will be in
realtime by closing the loop manually, however,
you preselect a multiple before you begin (though
if you select x6, for example, you can close the
loop anytime before the sixth iteration). Finally,
engaging Split Input configures the two loopers
as discrete mono devices with their own inputs,
allowing you to loop two instruments or other
The Infinity’s footswitches function pretty
much like you’d expect. Pressing Loop 1 Play/
Rec/Dub initiates recording, pressing it again
closes the loop and starts playback, and pressing
it again opens the loop back up for overdubbing.
Ditto Loop 2 Play/Rec/Dub, except that Loop 2
is only active once Loop 1 has been recorded.
The Stop footswitch may be set to operate in
one of three modes: Full (audio stops immediately),
Trail (audio stops at the end of the loop
cycle), and Fade (audio fades until the end of
the loop cycle). Additionally, in All mode both
loops are affected by the Stop footswitch simultaneously,
whereas in Arm mode only the currently
selected (Armed) loop will be affected.
There’s also an Undo/Redo function, but you’ll
need an optional external footswitch to use it.
Connecting an optional expression pedal gives
you control over loop output volume or regeneration
(“Loop Aging”), enabling faux Eno-style
As if that weren’t enough functionality to
pack into a pedal, the Infinity has a MIDI input,
allowing it to slave to incoming MIDI Clock from
a DAW, sequencer, etc., and it can also be set to
respond to MIDI Start, Stop, and Song Select
commands (the latter selects one of the nine
Presets). Finally, an Aux Out jack outputs just
the looped audio in mono, which is a very nice
Oh, did I say “finally”? One of the great things
about the Infinity is that its firmware can be
easily updated via USB and the Infinity Looper
Application that resides onboard the pedal. The
latest update adds a Reverse function, the ability
to go directly from recording the base layer into
overdub mode, and four other cool new switching
functions that are described on the Infinity Looper Blog found on the Pigtronix website.
Choosing a looping pedal is both a matter
of deciding which features you need to do your
thing, and what feels right, as feel is a huge part
of performance with a looper. The Infinity offers
all of the standard features you’d expect from a
looping pedal in its price range (other than halfspeed,
which is almost de rigueur at this point,
though Pigtronix says that it will be added in a
firmware update) and several that are unique to it.
After spending some quality time with the
Infinity I found many things to like about it, not
least of all that the audio quality is superb, and
that the 24-bit/48kHz WAV format happens to
be what I use in Pro Tools, so the loops integrate
into my projects without the need of conversion.
I also liked the way the Infinity synched to Pro
Tools’ sequencer without any hassles, and that
if I wanted to incorporate it into my live rig I could
control its essential functions with MIDI. And, as
someone who incorporates live looping into performances
with a band, I cannot overstate the significance
of the Aux Out. My current rig includes
a small mixer used to send a loop-only feed to
the floor monitors and the drummer’s headset—
so having that built into the pedal is a major plus.
In terms of feel, the Infinity reacts very quickly
when you stomp on the footswitches, and the
switches themselves are arranged in a logical
and uncrowded way. The soft touch momentary
switches are a little noisier mechanically
than those on some other loopers (a potential
issue around live microphones in the studio and
during quieter gigs), but are ruggedly constructed,
feel good underfoot, and are super-responsive.
The Infinity offers a unique take on looping
pedals, and makes a very welcome addition to
field of choices, especially for the live-looping
crowd. If it isn’t already on your list of loopers to
check out, it should be.
Kudos Superb audio quality. Ultra-flexible. Looponly
Concerns Undo/Redo and Reverse functions
require external footswitch.
Price $599 retail /$449 streetContact Pigtronix, (631) 331-7447; pigtronix.com
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