The Nanotec 777 "Great" speaker cable uses an ultra-high-purity 6N copper (99.9999% pure) base, coated with a formulation of gold and silver nano particles. Compared to the Nanotec SP/SV, the 777 has a wider frequency range and is more detailed and dynamic. The SP/SV is your best choice if you're on a really tight budget but if you're willing to spend more for performance and your system is capable of reaching a high level, the 777 is the one you want.
Free Assembly Included: When you buy the cable with Furutech connectors, Jaguar will assemble and finish the cables for you. We believe Furutech connectors offer the best combination of value and performance at this level. Choose 24k gold connectors for a warm, full bodied sound and rhodium connectors for leaner, faster sound.
The 777 uses two runs of cable per side. When you select the 2.0M length, that indicates a 2.0M pair of cables for both speakers (a total of 8.0M).
Here's what 6 Moons said in their review of the 777 speaker cable.
"With the SP#777 Great, Nanotec has written another chapter in their book. Again, for a very realistic price we now have a loudspeaker cable to market which offers a very balanced and controlled means of transporting an audio signal from amplifier to speakers."
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The speaker cable Nanotec 777 provided an outstanding overall sound improvement when comparing with its young brother SP/SR. The difference was well beyond my expectations.