Luxman, a name synonymous with high-end audiophile equipment, has a rich history marked by innovation and a relentless pursuit of sonic perfection. Within that history, the LV series, particularly the LV-105 and its successor the LV-105u, holds a special place, representing a significant milestone in the company's evolution and a benchmark in integrated amplifier design. This article delves deep into the world of the Luxman LV, exploring its lineage, technical specifications, design philosophy, and the enduring legacy it has carved in the audiophile community.
Luxman LV-105 Schema: A Foundation of Excellence
Before understanding the significance of the LV-105u, it's crucial to examine the foundation upon which it was built: the original LV-105. While detailed schematics for the LV-105 are not readily available to the public, understanding its overall design philosophy provides crucial context. The LV-105 represented Luxman's commitment to high-quality components, sophisticated circuitry, and a robust build. It was likely characterized by a fully discrete design, eschewing integrated circuits in favor of individual transistors and components carefully selected for their sonic qualities. This approach, typical of Luxman's philosophy, aimed for a warmer, more natural sound reproduction, prioritizing musicality over clinical accuracy.
The power supply likely featured a substantial transformer and generous filtering capacitance, providing a stable and clean power source crucial for maintaining the amplifier's performance and minimizing noise. The preamplifier section probably employed a carefully balanced design, minimizing signal degradation and maximizing signal-to-noise ratio. The power amplifier stage, likely also fully discrete, would have emphasized high current delivery for driving demanding loudspeaker loads with authority and control. While specific component values and circuit topologies remain largely undocumented for the original LV-105, the overall design philosophy points towards a sophisticated and high-quality amplifier.
Luxman LV-105u: A Refined Masterpiece
In 1986, Luxman took the already highly regarded LV-105 and subjected it to a comprehensive overhaul, resulting in the LV-105u. This wasn't merely a cosmetic update; it represented a significant refinement of the original design, addressing potential shortcomings and enhancing its performance in several key areas. The "u" in the model designation signifies the upgrade, indicating improvements across the board.
The exact nature of these improvements is not comprehensively documented in readily accessible sources. However, based on anecdotal evidence from audiophile forums and reviews, several key areas of enhancement are likely:
* Improved Power Supply: The LV-105u likely featured a more robust power supply, possibly with a larger transformer, increased filtering capacitance, and improved regulation. This would have resulted in a cleaner power supply, reducing noise and improving the amplifier's ability to handle demanding loads without compromising sound quality.
* Refined Circuitry: While the core design philosophy likely remained consistent, subtle refinements to the circuitry would have been implemented to improve linearity, reduce distortion, and enhance the overall sonic performance. This could involve changes in component selection, biasing adjustments, or even subtle modifications to the circuit topology itself.
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