most sophisticated power cable available, featuring IsoTek’s
highly regarded 2.5mm OFC conductor actively shielded power cable
and incorporating unique DC-canceling electronics that rebalance
the mains sine wave. Each cable is terminated with high- quality
24ct gold audiophile grade connectors.
Rebalances mains sine wave on the zero volts line.
Uniquely removes harmful DC from the mains supply.
rating allows use with all audio electronics.
Protects against harmful RFI and EMI.
be used with all power conditioning solutions, including IsoTek.
Available with 15 Amp (C15), 20 Amp (C19),Neutrik Powercon and
simple terms, EVO3 Syncro is IsoTek’s most advanced mains cable – but
it’s also so much more. The cable incorporates innovative
electronics, housed in an anti-resonant aluminum case positioned
part way down its length. This unique circuitry is designed to
synchronize the mains supply in order to promote a perfectly
symmetrical sine wave, delivering significant sonic improvements
when used with any hi-fi separates system.
Syncro is not a mains conditioner or filter in the accepted sense.
It can be used on its own to power a single hi-fi component, and
will bring significant improvements if used in this way. However,
it is primarily designed as a ‘pre-filter’ device – for best
results, plug the Syncro into a wall socket and use it to power an
IsoTek mains conditioning unit. Thus, Syncro takes the mains
electricity supply and realigns its waveform, prior to filtration
of contaminants (RFI/EMI etc.) by the conditioning unit, which
then feeds each hi-fi component – thus improving the performance
of every link in the audio chain.
cable itself is identical to IsoTek’s top-of-the-line Extreme
power cable. It features heavy-gauge, triple-screened, 20Amp
oxygen-free copper conductors suitable for high-current demands,
coupled to top-quality connectors at either end. Both the mains
plug and the IEC connector are precision machined from high-purity
copper, heavily plated in 24ct gold, deep cryogenically treated
and then demagnetized. The main bodies are made of injection-molded
polycarbonate, for ease of handling, durability and long-term
reliability, while the IEC plug’s precision injection-molded
front assembly ensures precise mating with power sockets.
Does Syncro Improve Audio Performance?
fill our homes with an ever-increasing number of electrical
devices, we further degrade the mains supply, interfering with its
quality and consistency. Audio equipment uses electricity to
generate signals, amplified by more electricity to drive a pair of
loudspeakers; the quality of the electricity that feeds an audio
system has a direct impact on the resulting quality of sound.
IsoTek’s extensive range of mains conditioning components improves
the quality of the mains supply significantly, filtering out
contaminants like RFI and EMI, and ensuring each component in the
audio chain receives pure and consistent power in line with its
specific requirements. However, there is a further issue with the
electricity supply in our homes that has existed for years,
without a truly effective commercial solution. The problem in
question is sometimes referred to as ‘DC on the mains’. In terms
of audio equipment, it is often signified by a buzzing sound
emitted by a transformer in a power amplifier. Of course, this
buzz is extremely distracting to the listener, and hardly in
keeping with the concept of high-resolution audio. In addition,
the mechanical vibration within the power transformer, created by
core saturation, results in microphony in the internal components,
leading to further degradation of sound quality.
issues have nothing to do with the quality of the audio equipment
used. In fact, some of the best amps available are the most
seriously affected. The problem is a symptom of the poor state of
mains electricity available in most homes, affecting not only
amplifiers but source components, too.
of the DC-related issues suffered by audio systems are brought
into being by the electrical devices we own, directly ‘rectifying’
the mains from AC to DC (where a diode is used in series to allow
either the positive or negative cycle of the mains sine wave to
pass). The use of switch-mode power supplies exacerbates the
problem, introducing measurable mains distortion. These devices
create a lack of symmetry in the mains sine wave where it is
displaced from the zero voltage line, leading to the
aforementioned hum that’s often noticeable from power amplifiers,
as the DC voltage saturates the core of the transformers with DC
current. This, in turn, generates unwanted mechanical vibration,
resulting in audible noise and microphony, and increased power
consumption and heat.
give an example, if a sine wave reaches a peak of 326 Volts in the
positive direction, it should also reach 326 volts in the negative
direction to have perfect symmetry. This actually describes the
reality of a 230 Volt AC wave form; the 230 Volts describes the
heating effect of a sign wave whose peak is 326 Volts. If one peak
reaches 327 Volts and the other 325 Volts, there is lack of
symmetry. Although common sense suggests that such small
variations should have no effect, in reality they create serious
problems for audio systems; even tiny changes registering no more
than a few millivolts create significant operational difficulties
Inadequate remedies of the past…
Historically, IsoTek advocated the use of huge isolating
transformers to improve the cleanliness of the electricity supply
(the company has since developed more advanced components for use
in its power conditioners). A by-product of this technology helped
to compensate for DC elements on the mains. However, this merely
shifted the problem away from the audio equipment to the isolating
transformer itself; audible mechanical hum may have been removed
from the transformer in the power amp, but the isolating
transformer would hum instead.
Ironically, in order to try to reduce dynamic loss in the
amplifier created by the insertion of the isolation transformer,
larger and larger devices were needed. However, the bigger the
transformer, the louder the mechanical noise; the problem was
never truly solved, merely shifted and often made worse.
solution: IsoTek Syncro…
IsoTek’s research has led to the conclusion that mains electricity
should be a pure sine wave of either 50Hz or 60Hz of correct
voltage and good symmetry about the zero volt line, in order to
power audio equipment with maximum effectiveness. The Syncro is
solely concerned with creating zero-volt symmetry, but also forms
a vital part of IsoTek’s product range in working towards the
ideal state of a pure sine wave.
designing the Synchro, the challenge for IsoTek was to offer a
universal solution to remove the unwanted and damaging DC
component from the mains supply, whilst allowing the maximum
possible current to pass. IsoTek’s latest engineering solution and
DC-blocking technology developed for the Syncro is in many ways
superior in performance to a massive 12,000VA isolating
transformer, delivering greater dynamic ability. (Incidentally, a
12,000VA isolating transformer is twice the size of IsoTek’s
largest historic product.)
Syncro’s sonic effect…
well as removing any audible hum from a power amp, Syncro’s
synchronizing effect results in greater bass depth, improved
timing, a reduction in the noise floor and a more palpable sound
overall. Furthermore, these improvements don’t come at the expense
of dynamic ability; in fact, in some cases dynamics are
considerably improved. This can be explained by the fact that at
zero volume, many power amplifiers consume less power in idle. The
Syncro helps the amplifier to consume less electricity, freeing up
power for dynamic transients. A simple analogy is a car that is
free running, as opposed to having the brakes slightly engaged
OFC copper with active shield
Audiophile-grade, 24ct gold-plated, cryogenically treated
C13 or horizontal pinned
C20 IEC plug configuration.
Specifications subject to change without notice.
Call Us 206-878-3833 or email firstname.lastname@example.org
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2 meter power cable
With 15 Amp IEC (C15) or
20 Amp IEC (C19)
Please call 206-878-3833 or email
you have any questions or would like to place an order.
"The result was a beautifully smooth series of vocal
performances which glided over the soundstage, lacking any
sort of harsh delivery and making subtle vocal inflections and
varying vocal power surges wholly more obvious. All
instruments now exhibited sparkle and shimmer while the
removal of the excessive distortion allowed all instruments,
of whatever variety, time to breath. Bass, meanwhile, was no
longer trying to be understood. That is, there was now a
complete lack of lower frequency strain."
"A highly impressive piece of kit."