Siltech Explorer 180i SC006 RCA 2m
Overview
The Siltech Explorer 180i SC006 is Siltech’s entry-level unbalanced interconnect cable. It uses a 6N single-crystal copper conductor (99.9999% purity) and meticulous construction, delivering high sonic performance without resorting to the silver conductors used in higher-end models.
Single-crystal copper technology
At the heart of the Explorer 180i is a 6N single-crystal copper conductor with 99.9999% purity. This technology, which Siltech markets under the name “Mono X-tal,” represents a significant advance over traditional polycrystalline copper. Unlike conventional conductors made up of multiple crystals separated by grain boundaries, the single-crystal process yields a conductor formed from a single continuous crystal along its entire length.
This unified crystalline structure eliminates micro-discontinuities that can disrupt the passage of the electrical signal. The boundaries between crystals present in conventional copper act as countless micro-resistances that can subtly affect high-frequency transmission and introduce minimal but audible distortions. The Explorer 180i’s single-crystal copper thus offers superior conductivity and remarkable long-term stability, unlike standard copper which can gradually degrade.
The cable’s coaxial construction, combined with this advanced metallurgy, ensures exceptionally clean and linear signal transmission across the entire audio spectrum. This geometry also provides natural protection against external electromagnetic interference.
A multi-layer shield against interference
Siltech has developed a sophisticated insulation system for the Explorer 180i that combines several materials with complementary properties. The double-layer insulation pairs Kapton and Teflon (PTFE), two polymers renowned for their exceptional dielectric qualities and long-term stability.
Kapton, a polyimide film originally developed for the aerospace industry, provides outstanding mechanical resistance and effective protection against magnetic fields. Teflon, for its part, has one of the lowest dielectric constants among insulating materials, thereby minimizing signal losses and unwanted coloration. This combination is complemented by what Siltech calls a “super shielding,” providing additional protection against radio frequencies and electromagnetic disturbances.
The metal cylinder visible near one end of the cable is more than just an aesthetic element. It serves several practical functions: it enables a seamless transition between the body of the cable and the slimmer connectors, indicates signal direction thanks to an engraved arrow, and carries the individual serial number of each cable—a safeguard against counterfeiting in a market unfortunately affected by imitations.
High-quality gold-plated SC006 connectors
The SC006 RCA connectors fitted to this model are entirely designed and manufactured by Siltech. The thick gold plating not only ensures optimal conductivity but also exceptional resistance to oxidation and wear. The mechanical design of these connectors guarantees a firm, stable contact with female sockets—crucial for maintaining signal integrity.
It is worth noting that Siltech also offers this cable with SCC85 connectors according to user preference, and other terminations can be obtained on request from local distributors. This flexibility reflects the brand’s artisanal approach, where each cable is hand-assembled and terminated to the customer’s exact specifications.
The Explorer philosophy: uncompromised Siltech DNA
The Explorer range occupies a strategic position in Siltech’s catalog, sitting between consumer cables and the pricier Classic Legend series. Launched in 2011, this line replaced the MXT series with a bold proposition: to demonstrate that copper, when treated with the same care and expertise as silver, can deliver exceptional sonic performance.
The Explorer 180i sits in the middle of the Explorer interconnect hierarchy, between the entry-level 90i and the 180ix equipped with balanced XLR connectors. This intermediate position makes it a particularly relevant choice for mid- to high-end systems seeking a meaningful upgrade without an excessive investment.
Each Explorer cable is laser-etched with a compass—symbolizing direction and orientation—as well as a unique serial number. Far from being anecdotal, these details reflect the attention paid to every unit produced at the Elst factory in the Netherlands.
Documentation
Technical Specifications
Construction and Materials
- Metallurgy: ultra-pure single-crystal copper (6N)
- Construction: coaxial
- Insulation: Kapton, Teflon, and super shielding
- Cores: 1
Connectivity
- Connector: gold-plated RCA SC006
- Other connectors: available on request (via local distributor)
- Signal type: unbalanced (RCA)
General Information
- Product type: unbalanced stereo interconnect
- Use: high-fidelity audio interconnect
Highlights
- Ultra-pure 6N single-crystal copper conductor
- Dual Kapton-Teflon insulation and super shielding
- Gold-plated RCA connectors (SC006)
- Robust and durable construction
- Outstanding value for money with audiophile-grade performance
Frequently Asked Questions
What is the difference between the Explorer 180i and the 90i model?
The Explorer 180i represents a step up in the range with more sophisticated construction and higher-quality materials. The differences translate into better resolution, a wider soundstage, and superior dynamics. The 180i justifies its price positioning with significantly improved performance, particularly noticeable in medium- to high-resolution systems.
Does single-crystal copper really offer audible benefits?
The single-crystal structure eliminates the crystal boundaries present in standard polycrystalline copper. These microscopic discontinuities can introduce subtle distortions and impair high-frequency transmission. The Explorer 180i’s 6N single-crystal copper ensures approximately 20% higher conductivity and exceptional long-term stability, resulting in greater transparency and better preservation of musical detail.
Why does Siltech use copper instead of silver in the Explorer range?
Siltech developed the Explorer range to make its technology accessible to a wider audience. The 6N single-crystal copper used offers remarkable performance at a cost significantly lower than silver. This approach lets users benefit from Siltech’s expertise in construction, insulation, and connectivity without the additional cost associated with silver or silver-gold alloy conductors in the upper ranges.
How does the Kapton-Teflon insulation protect the signal?
Kapton offers excellent mechanical resistance and protection against magnetic fields, while Teflon has a very low dielectric constant that minimizes losses and parasitic capacitance. This double layer, combined with the super shielding, creates an effective barrier against radio-frequency and electromagnetic interference while preserving the integrity of the audio signal.
Can the cable be ordered in specific lengths?
Yes, all Siltech cables are made to order at the Elst factory. Standard lengths generally range from 0.75 m to 2 m for interconnects, but specific lengths can be ordered from authorized distributors. This made-to-order manufacturing ensures that each cable is assembled according to the customer’s exact specifications.
- Eco-contribution included in the sale price.
