CORE Collection

Beyond the Ordinary

Our CORE Collection of vacuum tubes offers the quintessential upgrade for audiophiles ready to move beyond the limitations of standard factory vacuum tubes. Each vacuum tube is hand-selected, with a strict process that allows only the top percentile of a production batch—those that meet and surpass our rigorous standards for gain, conductance, noise, and microphonics—into your audio system.

Choosing Certainty: Why New Stock is Better

When you buy our CORE Collection of vacuum tubes, you’re guaranteeing that your listening is enhanced by the best of today’s technology. In contrast, when you buy New Old Stock (NOS) vacuum tubes, you’re venturing into unknown territory. While NOS vacuum tubes carry undeniable vintage charm, they often come with hidden risks. Over time, even unused vacuum tubes (hence the “new” in “new old stock”) can degrade, leading to reliability issues and unpredictable performance. You might face diminished sound quality or even failure, as age affects the components, making them more susceptible to wear and damage. In contrast, our newly manufactured vacuum tubes carry the latest technological advances and stringent quality controls.

Curated by Audio Engineers

The secret behind our exceptional sound quality lies in the hands of our dedicated audio engineers. Unlike the impersonal selection process for NOS vacuum tubes, which can be hit or miss in terms of quality, our engineers are deeply involved in every step of choosing our vacuum tubes. They don't just look at specs or conduct standard tests; they listen, evaluate, and hand-select each vacuum tube. This human touch ensures that every vacuum tube we produce not only aims to match the vintage experience but significantly surpasses it in reliability and performance.

Superior Sound, Secured

Our exceptional 12-month warranty—a rarity in the world of vacuum tubes, especially NOS vacuum tubes—reflects our confidence in our vacuum tubes’ performance and durability. This warranty is your safeguard against any manufacturing defects, making sure that your investment is protected.