Ranieri Audio Labs – Varieta, the first universal direct-heated triode vacuum tube preamplifier, seamlessly supports a wide array of 4-pin medium base Direct-Heated Triode vacuum tube sets, including 300B, 2A3/6A3, 12A/201A, 26, 30, 31, 45, 50, 71A, 801A/10Y, 275A/252A, 245, and 842/VT52, offering the ultimate tube-rolling experience
The Dial – “Rotare”
Selecting your tube type has never been easier—simply rotate the dial to the clearly marked position for your chosen tube, and Varieta instantly reconfigures itself to the tube’s parameters. Varieta preamplifier – no guesswork, just pure sonic flexibility at your fingertips.
Expressiveness
For the same reason a double bassist swaps strings to refine tonal balance, resonance, and expressiveness, rolling through vacuum tube sets with your Varieta preamplifier brings out each tube’s intrinsic strengths, be it soundstage, micro detail, or dynamic expression.
Selection
Just as a bourbon enthusiast selects the perfect glass—be it a Glencairn to concentrate aromas or a Rocks to mellow the heat with ice—or an espresso connoisseur selects between a balanced spouted portafilter or a bottomless one for maximum clarity and crema, Varieta gives tube-rolling audiophiles the freedom to explore.
The glass doesn’t change the bourbon itself, but it reveals hidden depths. Likewise, a barista knows different portafilters influence texture, body, and clarity, unlocking the best from each roast. With Varieta preamplifier, rolling through a selection of direct-heated triode tube sets offers the same refinement—each tube revealing a unique character, transforming the listening experience to suit the music, the mood, and the moment.
- Universal DHT Compatibility: Seamlessly supports a wide array of 4-pin medium base DHT vacuum tube sets including 300B, 2A3/6A3, 12A/201A, 26, 30, 31, 45, 50, 71A, 801A/10Y, 275A/252A, 245, and 842/VT52, offering the ultimate tube-rolling experience
- Low Noise Design: Component and circuit layout ensures an immersive listening experience free from interference
- Zero Feedback Circuit Topology: Two-stage, zero-feedback design with custom transformer-coupled outputs delivers pure, sound reproduction
- Tube-Rectified: Linear regulated power supply provides consistent, stable performance
- Self-Biasing: Circuit topology eliminates the need for manual adjustments, simplifying operation
- Premium Components: Renowned manufacturers such as Lundahl, Caddock, Alps, and WIMA.
- Robust Chassis: Crafted from extruded 6061 aircraft-grade aluminum, available in black or silver anodized finish, combining aesthetic elegance with structural integrity and thermal stability
- Protective Circuitry: Interlocked circuit design safeguards the tubes and internal components, enhancing longevity and reliability
- Hard-wired TTL Logic: Eliminates the need for noisy, clock-based microprocessors.
- Remote Control: User-friendly remote control for convenient operation from your favorite listening position
- Warranty: 2-year limited
- Patent Pending: Innovative design and technology under patent review
