Audia Flight Strumento n°1 Signature

STEREO PREAMPLIFIER

The Strumento N°1 Signature is the pinnacle of Audia Flight’s pursuit of absolute sonic fidelity—a groundbreaking evolution of the acclaimed Strumento N°1 Evo. It introduces a new level of naturalness, immersion, and emotional realism, recreating a live soundstage with breathtaking precision. Engineered for the most discerning audiophiles, this reference preamplifier delivers flawless signal transmission to any power amplifier with exceptional accuracy, dynamic range, and lightning-fast response, boasting a bandwidth greater than 1MHz. Each circuit refinement—many chosen by ear—brings us ever closer to perfect musical truth. The physical beauty of the Strumento N°1 Signature mirrors its sonic performance. A golden plaque on the front panel signals the exclusivity of this masterpiece. Its chassis begins as ultra-high-grade aluminum casting, precision-machined using CNC processes. Each part is meticulously hand-polished to a mirror finish, with critical sections further refined by hand through shot-peening and anodization. Elegant silk-screening completes the luxurious, timeless aesthetic. Every tactile and visual detail speaks of refined Italian craftsmanship at its finest. Inside this elegant exterior lies a highly sophisticated power supply architecture built for absolute silence and signal integrity. Four toroidal transformers drive its operation: two 75VA units feed the main audio circuits, a 25VA transformer supports the control boards, and a 15VA transformer powers the logic circuitry. All are shielded in ferromagnetic cases and encapsulated in epoxy resin to eliminate mechanical and electromagnetic interference. The ultra-low-noise main power supply features 20 ultra-fast Mundorf capacitors, each encased in vibration-damping material to suppress any mechanical noise. The result is a system with exceptional stability, allowing the Strumento N°1 Signature to operate in complete silence while maintaining perfect timing and purity of signal. Volume control is a crucial factor in high-end preamplification. Traditional potentiometers introduce variable impedance across the range, negatively affecting frequency response, slew rate, and inter-stage coupling. Audia Flight overcomes this with a custom-designed constant impedance attenuator, built entirely from discrete low-noise metallic film resistors and precision relays. This proprietary solution offers a massive gain range of 127 dB, in finely stepped 0.5 dB increments, with constant impedance across the entire range. The result is an extraordinarily silent, smooth, and transparent volume control system, with an extended frequency response of 3Hz to 1MHz (-3 dB) and a remarkable slew rate exceeding 250V/μs. All audio-path components—Mundorf capacitors, Dale resistors, and high-frequency Reed relays—are selected for ultimate precision. Internal parts involved in signal transmission, including bars and spacers, are gold-plated for long-lasting contact quality. At the heart of the Strumento N°1 Signature lies Audia Flight’s exclusive Class A current-feedback gain stage—an advanced, fully discrete design powered by four independent stabilized power supplies per channel (two for input stages, two for output). Housed in an aluminum enclosure and encapsulated in epoxy resin, this section is thermally stabilized and shielded from external interference. The high-current output stage employs Class A biased MOSFETs with ultra-low noise, ensuring full compatibility with any power amplifier. Custom printed circuit boards feature high-grade gold surface finishes, and every conductive component in the signal path is gold-plated to ensure perfect, stable signal transmission over time. The Strumento N°1 Signature is more than a technical achievement—it is an artistic statement. It combines cutting-edge engineering, obsessive attention to detail, and artisanal Italian craftsmanship into a single, breathtaking instrument. Every aspect of its design, from sonic refinement to build quality, serves the goal of delivering a pure and emotional listening experience.