Ray Tubes RESERVE 300B tubes are now available as single tubes, or as matched pairs or quads. As part of our RESERVE Collection, they represent the pinnacle of everything we've learnt making vacuum tubes, featuring a bespoke design, small-batch production, and meticulous selection. They're not for everyone--but they might just be for you.
The 300B is a legendary tube. Introduced in 1938, it powered the cinemas of Hollywood’s Golden Age. Audiophiles have treasured it for decades for its low noise and good reliability. Ray Tubes is proud to introduce our take on a classic.
The Ray Tubes RESERVE Collection
Engineered Exclusively for High Fidelity Audio
The best way to meet the needs of our partners and customers is to engage with them and learn from them. We took everything we learnt from developing our CORE and SELECT lines and asked ourselves a simple question: what’s missing from the tube marketplace? Our answer is the RESERVE Collection—tubes designed from start to finish with hi-fi audio in mind. No shortcuts, no cut corners, no expense spared.
Vetted By Real People
Most new vacuum tubes aren’t manufactured with audio in mind. Ours are. All our tubes are vetted by sound engineers as part of our rigorous quality control process to ensure reliable, consistent performance in audio equipment. For the RESERVE Collection, we apply the strictest standards to every part of the process, from the choice of materials to the manufacturing procedures and selection criteria.
The Ray Tubes One Year Warranty
Tubes fail in all sorts of ways. That’s why warranties are rare. We have one anyway, because we put in the hard work and we stand by our products. All our tubes come with a one year warranty against manufacturing defects.
Find A Retail Partner Near You
RESERVE 300B tubes are available through our ever-growing network of retail partners. Head on over to our retail partners page to find one near you.
What’s next?
There’s plenty more to come. Stay tuned for more exciting announcements.
