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Kaina:
21.99Lt
(18.17Lt be PVM)
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Svarbiausi momentai:
Kaina skaičiuojama už metrą
Ply 2x2.0 & Ply 2x3.4
Audio cables’ performance is initially determined by their loop resistance
(R) & inductance (L) & shunt capacitance (C). For most speakers R &
L must be low, but capacitance value, C doesn’t matter [1,2] as speakers
already act as large cap loads. But simply using larger wire makes R low, at
the expense of an increasing ratio to L with musically unacceptable effects.
Ways to make inductance L low also with low resistance, include tapes, either
stacked or arranged in ribbons. But these types are impractical to fit to
nearly every speaker connector without discontinuities, & are stressed
& often unsightly when bends are required in real installs & also
aren’t suited to mobile uses. Litzing with multiple, insulated conductors
is more practical, but quality Litzes are expensive and termination not easy.
Other types are gross, like industrial pipes, unsuited to many domestic spaces.
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Simplistic fat conductors’ rising
impedance (due to L) of +6dB/octave is further raised by internal eddy currents
causing ’Skin effect’, like ’the square root of
inductance’, adding. +3dB/oct, to the L-reactance slope. For typical cable
runs, nett inductivity is such that performance in heavy plain conductors is
measurably affected with steady signals just above 1kHz.
Cables with copper or silver stranded conductors suffer from complex oxidation.
The semiconductive ’diodes’ between the strands aren’t seen by
steady tests, but look like a high capacitance to music signals. This causes
energy storage/release cycles, that regular tests miss, yet which is audible
with music. This problem is also describable as the electron flow being
’trapped’ inside strands & twisting away from the direct route.
Supra Ply is a largesection, low resistance cable, overcoming skin effect &
transient distortion, using pure tin plating. Tin melds to copper with-out any
diodic barrier, & also protects the copper from common corrosions - ideal
for outdoors & 12 volt. Most audiograde cables’ conductors are damaged
by contamination, by plastic out-gassing, from the impure atmosphere, &
liquid spills. Some are protected but only by a thin coating that’ll one
day crack with use and age. Neatly, oxidation forming on Ply is sonically
benign.
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Ply with Combicon Banana |
Ply with Combicon Spade |
Other Advantages
When installing, Ply’s rectangular conductor is readily circularised for
insertion into receptacles of most regular connectors. Square outer profiling
suits most housings too - unlike ribbons, tapes & litzes. Ply is readily
coiled, more like thinner, basic cables - making it friendly in temporary
setups. Demostrating the Difference
Unlike some audio products, benefits of Supra Ply are readily shown by
repeatable measurements. Ply’s low-loss behaviour for hf audio (incl. bass
transients), is evident. Figs. 1, 2 are time domain scope pics, showing typical
dynamic/damping differences with a square wave. After transients, Supra’s
Ply restrains the peaking & accelerates the signal’s return to 0 volts
at the speaker end. Peaking in wide spaced cable shows limp damping & hf
loss, because it has high L & low C, the opposite of what’s required
to drive most speakers. |
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