Audioquest KE-4 Speaker Cables (8FT)
At first glance, KE-4 looks like a normal round cable, but inside is a fully
optimized and very sophisticated balance of quality ingredients and refined
KE-4 represents the ultimate refinement of AudioQuest’s Star-Quad design. Solid
Perfect-Surface Silver conductors offer unprecedented clarity and dynamics over
all other conductors. KE-4 is invisible when you don’t want to see it. Beautiful
when you want to gaze upon it.
SOLID 100% PERFECT-SURFACE SILVER (PSS) CONDUCTORS:
KE-4’s Perfect-Surface Silver has an astonishingly smooth and pure surface.
Proprietary metal processing technology protects the wire’s surface at every
stage of drawing and fabrication. PSS’s extreme transparency is made possible by
applying Perfect-Surface Technology to ultra-pure solid silver. For fifteen
years AudioQuest has pioneered the use of superior metals, but even we were
surprised by the huge leap in performance made possible with Perfect-Surface
Technology. PSS is the ultimate example of how far this remarkable technology
can take us. All drawn metal exhibits directionality, whether in hardware store
wire or in the best AQ cable. We wish we could design away this awkwardness.
Since we can’t, we pay close attention to optimizing performance by clearly
marking the cables and our terminations. Please watch for these markings when
installing any audio cables.
CARBON-BASED NOISE-DISSIPATION and CROSS-TALK-DISSIPATION SYSTEMS
The two negative conductors in KE-4 are insulated with partially conductive
Carbon-Loaded Polyethylene. This remarkable material damps radio-frequency
garbage from being fed back into the amplifier. The sonic benefit is exactly the
same reduction in “hash” and better dimensionality that comes whenever RF
garbage is reduced in an audio circuit. KE-4 uses Nitrogen-Injected
Foamed-Polyethylene Insulation on its positive conductors because air absorbs
next to no energy, and Polyethylene is low-loss and has a benign distortion
profile. Thanks to all the air in Foamed-PE, it causes much less of the
out-of-focus effect common to other materials.
The relationship between conductors defines a cable’s most basic electrical
values (capacitance and inductance). However, even when those variables are kept
in a reasonable balance, the relationship between conductors can be varied in
ways that greatly affect the sound. The Star-Quad construction of KE-4 allows
for significantly better dynamic contrast and information intelligibility than
if the same conductors were run in parallel.
SPREAD-SPECTRUM TECHNOLOGY (SST):
Any single size or shape of conductor has a specific distortion profile. Even
though radially symmetrical conductors (solid or tubular) have the fewest
discontinuities, any conductor of a particular size does have a sonic signature.
SST is a method for significantly reducing the awareness of these character
flaws by using a precise combination of different size conductors. The different
SST-determined conductor sizes used in KE-4 allow an exceptionally clear, clean
and dynamic sound.
DIELECTRIC-BIAS SYSTEM (DBS, US Pat #s 7,126,055 & 7,872,195 B1):
All insulation slows down the signal on the conductor inside. When insulation is
unbiased, it slows down parts of the signal differently, a big problem for very
time-sensitive multi-octave audio. AudioQuest’s DBS creates a strong, stable
electrostatic field which saturates and polarizes (organizes) the molecules of
the insulation. This minimizes both energy storage in the insulation and the
multiple nonlinear time-delays that occur. Sound appears from a surprisingly
black background with unexpected detail and dynamic contrast. The DBS battery
packs will last for years. A test button and LED allow for the occasional
AudioQuest offers a wide range of high-quality connectors that allow KE-4 to be
securely attached to any type of equipment. Quality is in the low-distortion
sound, not necessarily in the eye-candy effect. AQ ends are either a dull
looking gold or silver because these metals are plated directly over the
connector. There is no shiny and harsh sounding nickel layer underneath. AQ PK-spade
lugs are soft because better metal is soft, and facilitates a higher quality
connection. For pieces requiring a banana plug or BFA connector the AQ PK-BFA/Banana
provides unprecedented performance over conventional brass versions.
The metal breakouts on either end of KE-4 are marked “Speaker End” or “Amp End.”
Please use cables in the direction required.
A combination of these major ingredients, and many more subtle details add up to
explain how KE-4 can sound so good.
Please call one of our cable specialists at 800-782-3472 (or 765-608-5340) for quotes on custom lengths and terminations.