Ranieri Audio Labs has unveiled the Varieta preamplifier, a versatile tube-based device designed to cater to audiophiles seeking extensive tube experimentation. The Varieta supports an impressive array of 4-pin directly heated triodes, including renowned models such as the 300B, 2A3/6A3, 12A/201A, and more. This wide compatibility allows users to effortlessly explore different tonal characteristics, dynamics, and resolutions within a single system, enhancing the listening experience without the need for multiple components.
A standout feature of the Varieta is its Rotare selector, a mechanical rotary dial situated on the top panel. This innovative design enables seamless tube switching by simply turning the dial to the desired tube model. The preamplifier automatically adjusts its circuitry to accommodate the specific parameters of each selected triode, eliminating the need for manual recalibration. This user-friendly approach not only simplifies the process of tube rolling but also ensures consistent performance across various tube types.
Technically, the Varieta employs a two-stage, zero-feedback topology with transformer-coupled outputs, preserving the natural behavior of each tube and ensuring a pure audio signal path. The design prioritizes low-noise operation through careful component selection and circuit layout, minimizing electromagnetic interference and delivering clear, unadulterated sound. Additionally, the preamplifier features an auto-biasing mechanism, further streamlining setup and maintaining optimal performance without manual adjustments.
Constructed from extruded 6061 aluminum, the Varieta boasts a robust and thermally stable chassis available in black or silver anodized finishes. High-quality components from esteemed manufacturers like Lundahl, Caddock, Alps, and WIMA are integrated into the design, ensuring reliability and superior electrical performance. Complementing its solid build, the Varieta includes a remote control for convenient operation, allowing users to manage settings without direct interaction with the unit.
Designed for discerning listeners and tube enthusiasts, the Ranieri Audio Labs Varieta preamplifier offers a sophisticated platform for exploring the rich sonic possibilities of various directly heated triodes. Its blend of technical excellence and user-centric features makes it a compelling choice for those looking to refine their audio setups with precision and flexibility.