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• Overview – The NBS Demo Signature III RCA Cable (2 meters) is a stereo interconnect from NBS Audio Cables, a US high-end cable manufacturer based in Edina, Minnesota, using the company’s proprietary Passive Frequency Inductance Network circuitry.
• Key Technology – Every NBS cable, including the Signature III, is built around the company’s Passive Frequency Inductance Network (PFIN) circuitry, and terminated with NBS’s own gold-plated beryllium copper RCA connectors for a secure, low-resistance fit.
• Performance – The Signature III followed NBS’s Signature II in the company’s cable hierarchy, occupying a mid-tier position within the broader NBS range that spans from entry-level to the flagship Statement series.
• Specs – The NBS Demo Signature III RCA Cable (2 meters) is fitted with NBS’s gold-plated beryllium copper RCA connectors and built using the company’s Passive Frequency Inductance Network (PFIN) circuitry, available in custom lengths beyond the standard 4-foot pair.
• Dimensions – Length: 2 metres (stereo pair).
S$900 looks fair to slightly good, not a steal, but sensible for this level of NBS. Comparable NBS used listings span a wide range, with higher-tier Statement III pieces often trading around S$2,900-S$3,000 equivalent and some lower-tier NBS cables closer to S$700-S$1,600, so S$900 lands comfortably in the believable used zone for a Signature III interconnect.
What makes it worthwhile is the NBS house sound: big scale, strong drive, and a very authoritative, low-noise presentation that can make a system feel more composed and weighty. If it’s genuinely clean, with the right terminations and no repairs, this is the kind of cable that can be a smart long-term grab rather than a speculative buy.
Independent perspective — not a price guarantee. Always verify condition, accessories and provenance before purchase.
# NBS Audio Cables
NBS Audio Cables was founded in the mid-1990s by Walter Fields, a designer and entrepreneur based in Edina, Minnesota. The company's name stands for "Nothing But Signal," a philosophy that has guided its product development from inception. While specific founding details are limited in available sources, the brand has maintained continuous operations for over three decades, establishing itself as a Made in USA manufacturer with a European distribution presence.
NBS specializes exclusively in audio interconnects and speaker cables, positioning itself firmly within the high-end segment. The company's design approach emphasizes signal retrieval rather than sound coloration, employing solid-core copper conductors with unconventional silver shielding to minimize radio frequency and electromagnetic interference. Their cable lineup ranges from entry-level professional models to ultra-premium offerings like the Professional IV speaker cables, which retail at premium price points reflective of their market positioning.
NBS occupies a niche but respected position in the high-end audio market, particularly among discerning audiophiles and valve equipment enthusiasts. The brand has garnered positive reviews in specialized publications and maintains a loyal following among those who prioritize signal purity and minimal noise floor. While not a household name, NBS commands respect within boutique audio circles for its uncompromising engineering philosophy and commitment to domestic manufacturing, appealing to buyers willing to invest significantly in cable quality as a critical system component.
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