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Harmonix XDC-2 Power Cable (1.5m)
• Overview – Harmonix XDC-2 Power Cable, released in the early 2000s, is a Japanese audiophile-grade power cable designed to prioritise tonal naturalness, musical flow, and noise reduction over sheer current delivery.
• Design Philosophy – Developed using Harmonix’s tuning-by-ear approach, the cable focuses on resonance control, material synergy, and vibration damping to achieve a relaxed, organic presentation across analog and digital components.
• Sonic Performance – Harmonix XDC-2 Power Cable is renowned for smooth treble, rich midrange tonality, and coherent timing, making it especially attractive for tube systems and musically voiced solid-state equipment.
• Specifications – High-purity copper conductors, moderate gauge design, carefully selected dielectric materials, effective mechanical damping, and high-quality connectors optimized for stable contact and consistent AC power transfer.
• Dimensions – Commonly supplied in approximately 1.5 m length, featuring a flexible outer jacket that allows easy routing while maintaining consistent electrical and mechanical characteristics.
• Weight – Approximately 0.9 kg per cable, reflecting dense conductor materials and internal damping without excessive stiffness or stress on component IEC sockets.
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Siltech Ruby Mountain 2 Power Cable (1.5m)
• Overview – Siltech Ruby Mountain 2 Power Cable, released in 2002, is a high-end power cord engineered to reduce noise, improve current delivery, and enhance musical clarity in reference audio systems.
• Conductor Technology – Utilises Siltech’s proprietary G7 silver-gold alloy conductors with advanced dielectric insulation, delivering low resistance, excellent conductivity, and superior preservation of micro-dynamics and tonal purity.
• Sonic Performance – Siltech Ruby Mountain 2 Power Cable delivers a quieter noise floor, improved bass authority, enhanced midrange texture, and refined treble extension, benefiting amplifiers, source components, and digital front ends.
• Specifications – Features multi-strand G7 silver-gold conductors, heavy shielding for EMI and RFI rejection, high-current capability up to 16A, and premium connectors ensuring secure contact and consistent power transfer.
• Dimensions – Typically supplied in 2.0 m length, with a thick, flexible jacket designed for durability and ease of routing in high-end audio racks and power distribution setups.
• Weight – Approximately 1.0 kg for a 2.0 m cable, reflecting dense conductor geometry, advanced shielding layers, and robust connector construction.
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Harmonix SYN 100 Spikes and RF909x Spike Base
• Product Overview – Harmonix SYN 100 Spikes and RF909x Spike Base, released in the mid-2000s, are vibration control accessories designed to optimize mechanical grounding, resonance dissipation, and tonal balance in high-end audio systems.
• Tuning Philosophy – Developed using Harmonix’s tuning-based approach, the combination controls energy flow rather than fully isolating components, preserving musicality, timing accuracy, and natural harmonic structure.
• System Enhancement – Harmonix SYN 100 Spikes and RF909x Spike Base improve focus, bass articulation, and soundstage stability when used under loudspeakers, racks, or electronics, especially in revealing high-resolution systems.
• Specifications – Precision-machined metal spikes with matched base interfaces, resonance-tuned materials, point-contact energy transfer, and compatibility with most speaker and rack threaded inserts for universal audiophile applications.
• Dimensions – Individual spike height is approximately 25 mm, with RF909x bases measuring roughly 50 mm in diameter, allowing discreet placement while maintaining effective mechanical coupling.
• Weight – Each spike and base set weighs approximately 150–200 g, providing sufficient mass for stability while supporting controlled resonance behavior and consistent component grounding.
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VTL Deluxe Stereo 120/50 Power Amplifier and VTL Maximal Preamplifier
• Tube Amplifier System Overview – The VTL Deluxe Stereo 120/50 Power Amplifier and VTL Maximal Preamplifier deliver classic vacuum-tube musicality with rich harmonic texture, wide dynamic expression and natural imaging for serious high-end analogue systems.
• Power Amplifier Performance – Using a Class AB push-pull circuit with EL34 or 6550 valves, the VTL Deluxe Stereo 120/50 Power Amplifier and VTL Maximal Preamplifier provide approximately 50–60W per channel, offering smooth mids, airy highs and excellent dimensionality.
• Preamplifier Transparency & Gain Structure – Featuring high-voltage tube gain stages and a minimalist signal path, the VTL Deluxe Stereo 120/50 Power Amplifier and VTL Maximal Preamplifier achieve low noise, superior tonal purity and engaging musical flow across vinyl and digital sources.
• System Synergy & Listening Behaviour – Designed to work together, the VTL Deluxe Stereo 120/50 Power Amplifier and VTL Maximal Preamplifier deliver coherent timing, fluid transient behaviour and a large holographic soundstage ideal for efficient or well-matched loudspeakers.
• Product Dimensions – Amplifier: approx. 483 mm (W) × 203 mm (H) × 381 mm (D). Preamplifier: approx. 432 mm (W) × 89 mm (H) × 330 mm (D), sized for stable rack integration.
• Product Weight – Amplifier weighs roughly 22–25 kg; preamplifier approx. 7–10 kg. Heavy transformers and rigid chassis designs provide superior mechanical damping and improved tube performance stability.
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Harmonix is a Japanese audio brand specialising in system tuning accessories focused on resonance control, mechanical grounding, and vibrational optimisation. The brand approaches audio reproduction as a holistic system, recognising that mechanical behaviour and energy flow play a critical role in overall sound quality.
Harmonix products include cables, tuning devices, and isolation accessories designed to fine-tune tonal balance and system coherence. Because these products are based on physical principles rather than rapidly changing technology, pre-owned Harmonix items remain highly relevant when properly maintained. Many enthusiasts use Harmonix products incrementally to refine established systems rather than replacing core components.
Across Singapore, Malaysia, and Southeast Asia, Harmonix appeals to experienced audiophiles seeking subtle but meaningful system optimisation. On SoundTribeAsia, Harmonix products — new and pre-owned — are listed by verified dealers, offering transparent sourcing and trusted access through a curated regional marketplace.