The Ray Tubes Select 12AU7 is the best 12AU7 vacuum tube you’ll ever need. It goes above and beyond the baseline with more involved production and stricter selection, all in pursuit of superior sound.
The SELECT Collection brings out the best in all your favourites.
Hand selected and tested, the Ray Tubes SELECT 12AU7 features gold pins for corrosion resistance and improved conduction.
The SELECT Collection is a substantial upgrade from both New Old Stock and other new production tubes. Fewer than 5% of production meets their standards.
Introduced in 1946, the 12AU7 was the world’s first noval (nine-pin) vacuum tube. The 12AU7 is a double triode, consisting of two 6C4 tubes in a single envelope.
Before the advent of solid-state electronics, it was valued for its versatility and portability. Nowadays, it’s a common sight in the pre-amp phase of tube amplifiers, where it functions as a phase inverter or driver.
SELECT 12AU7 delivers a well-balanced tonal signature with excellent resolution and dynamic sensitivity, providing a clear, transparent, and layered sound presentation.
Bass Performance
Clean, tight, and well-controlled. Its focus on precision and clarity makes it well-suited for fast-paced music. Bass depth avoids excessive weight, ensuring a clean and well-defined low-frequency response.
Midrange Performance
Clear and well-balanced, offering good transparency and resolution. Vocals sound natural with distinct layering and detail. Instrumental sounds are reproduced with accuracy and separation.
Treble Performance
High frequencies extend smoothly with a sense of brightness and airiness. Treble detail is rich, adding liveliness and texture to the overall sound. Ideal for listeners who value purity and micro-dynamic expression in their music.
Dynamics and Soundstage
Fast transient response makes the sound feel crisp and well-articulated. It excels in presenting music with strong rhythmic elements. Soundstage is precise with well-defined layering, enhancing the depth and immersion of the listening experience.
Explore Ray Tubes’ Tube Amp Compatibility List.
At Ray Tubes, they know that passion brings people together. Tube audio has brought audiophiles together for decades, but in recent years, it’s become more difficult to access than ever.
The modern tube market is a mess—dodgy quality, shady sellers, limited stock. No good. They fixed it. Ray Tubes give you that classic sound without the hassle. Old-fashioned quality, modern reliability.
When it comes to making reliable tubes, there’s no such thing as a silver bullet. A factory that makes the world’s best 300Bs might not be best for 12AU7s. That’s why they partner with manufacturers around the world to build tubes to their exact specifications.
No leaks, no discoloured getters, and no dodgy filaments: just good materials and quality craftsmanship.
| Quantity | Single (1 Tube), Matching Pair (2 Tubes) |
|---|---|
| Technical Specification | Tube Type: 12AU7 / ECC82 / 6189 / CV4003 |
| What's in the box | Set of two, or single vacuum tube |
| Warranty | One Year Warranty |
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We personally invite you to join us at Revelation Audio and allow us to help you discover the ideal system to unleash the full emotional potential of your favourite music.
