Electro-Harmonix
122 Guitarist October 2010
ELECTRO-HARMONIX GERMANIUM 4 BIG MUFF PI & FREEZE SOUND RETAINER
£74 & £89
GUITAR EFFECTS
E-HX’s latest stompboxes offer two completely different
routes to providing sustain by Trevor Curwen
E
lectro-Harmonix
revealed several new
products at this year’s
Summer NAMM show,
including a headphone amp for
practice and a stompbox-sized
amp head. Also new were an
analogue chorus pedal and the
two pedals we have here for
review: the Freeze Sound
Retainer and the latest in the
Big Muff family – the
Germanium 4 Big Muff Pi.
Germanium 4 Big
Muff Pi
The Germanium 4 Big Muff Pi
circuitry is based around four
Germanium transistors used to
drive independent overdrive
and distortion effects that can
be stacked together if so
desired. Each has their own set
of two germanium transistors
so all four transistors come into
play when the two effects are
used together.
The pedal is delineated into
two sections, the left housing
the overdrive footswitch and
four knobs to control the sound,
while the right-hand side is
similarly dedicated to the
distortion. Both effects have a
gain knob for preamp gain and
a volume knob to set the output
level. Both also have a Bias
knob, which is designed to
change the character of the
effect by changing the bias of
the signal before it hits the
transistors. Besides these
controls, the overdrive section
gets a simple Tone knob while
the distortion section has a
Volts knob that adjusts the
amount of voltage supplied to
the circuit – turning it anti-
clockwise simulates a dying
battery, compressing the signal
more and making it start to clip.
Sounds
The overdrive section of the
G4BM provides crunchy, just
breaking up and overdriven
amp sounds adding an extra
facet when playing through a
clean amp, but providing
enough oomph to tickle the
front end of an overdriven unit
further into the zone if you
want it to. There’s plenty of
control over tonality too, with
juxtaposition of the Bias and
Tone knobs covering a very
useful range. Likewise in the
distortion section, turning the
Bias knob clockwise can dial in
a strident top-end presence that
will penetrate a mix, while the
Volts knob can change the
texture and character of the
sound, rolling back towards
buzzy fuzztone territory before
crapping out completely into
sputtering dead battery-style
sonic mayhem.
The distortion section is
capable of much more dirt than
the overdrive section and the
two together (the distortion
feeding the overdrive) pile it on
further, creating plenty of
sustain but with a different
character to the fat, saturated
sustain that’s generally
regarded as the classic Big Muff
Pi sound. A Big Muff Pi in name
then, but the completely new
circuit design makes it quite a
different beast.
Freeze Sound
Retainer
Contained in one of E-HX’s
Nano enclosures, the Freeze
doesn’t take batteries but will
run off a standard 9V adapter,
which is supplied with the unit.
Part sustainer and part looper,
it’s designed to capture a
moment of your playing to use
as a sonic foundation to play
over. The idea is that you play a
chord and press the pedal’s
footswitch, initiating infinite
sustain of that chord.
Besides a volume knob to set
the level of the sustaining
sound, there are three
selectable modes: Fast, Slow
and Latch. In Fast mode the
pedal will immediately sustain
the input sound for as long as
your foot is on the switch and
cut to silence immediately you
release it. Slow mode is similar
to Fast mode but the sustained
sound fades in and fades out at a
rate that you can set – three
fade in/fade out rates are
possible: 200ms/400ms,
200ms/1.0sec, 800ms/3.2sec.
In Latch mode the sound is
immediately sustained by a
single press on the footswitch
and continues sustaining until
Electro-Harmonix
Germanium 4 Big Muff
Pi & Freeze Sound
Retainer
£74 & £89
The rivals
We can’t think of any other
pedal like the Freeze but any
looper such as the DigiTech
JamMan Solo (£229) or the
BOSS RC-2 Loop Station
(£172) can record a looped
chord to play over. In the
world of dual overdrive/
distortion pedals the T-Rex
Mudhoney II (£215) offers
two identical channels of
classy overdrive/distortion
but you can’t have them both
on together. Blackstar’s HT
Dual (£159) offers two
channels of valve-powered
distortion. Foxrox’s ZIM
overdrive ($259) offers
changeable circuit cards for
each channel that can be
used in various ways.
The dual-distortion makes the Germanium Big Muff very versatile
The distortion section is capable of much more dirt than
the overdrive section and the two together pile it on
further, creating plenty of sustain
GIT334.rev_ehx 122 9/8/10 4:50:08 PM