Ray Tubes Select 300B Vacuum Tube

Our Take

A New Dimension of Sound
The SELECT Collection not only maintains the exceptional manufacturing quality of the CORE Collection but makes a significant leap in sound quality. Engineered for audiophiles who want an immersive auditory experience, this tier far surpasses what “factory vacuum tubes” can offer.

Make Your Good Amp Great
The SELECT Collection significantly upgrades the performance of your vacuum tube amplifier, even starter models. These vacuum tubes are engineered to enhance the hidden capabilities of your amp, transforming its output into something far beyond its original sound profile. With each vacuum tube rigorously selected by our audio engineers, the SELECT Collection ensures a profound enhancement in clarity, texture, and detail. Every note resonates with more realism, every harmony carries more emotionality, and every rhythm pulses with tighter low-end precision.

The SELECT Vacuum Tube Difference
Despite originating from the same batches as Ray Tubes’ CORE Collection, SELECT vacuum tubes are distinguished not by automated manufacturing differences but by the expert judgment of a professional. Their engineers assess each vacuum tube individually for its sound profile, dynamics, microphonics, gain, conductance, noise, and overall performance. This human touch ensures that only vacuum tubes that meet a superior level of sonic excellence are chosen. This meticulous, engineer-led selection is what makes the SELECT Collection exceptionally reliable and capable of delivering next-level sound quality.

Gold Pins: Excellence in Every Detail
Gold pins not only add a touch of elegance but also serve a significant purpose. Gold's superior conductivity enhances signal transmission for crystal-clear sound, while its resistance to oxidation ensures long-term performance and durability. These qualities, combined with the secure contact gold provides within the socket, mean your vacuum tubes aren't just top-notch—they're built to last.

Ceramic Collar: Nothing Better Than a Classic
Sometimes, doing things the old way is better. And when it comes to building materials, there are few things older than ceramic, which has been beloved by humans for its resilience and heat resistance for over 30,000 years. Ray Tubes chose premium ceramic for the collar of the 6SN7 Select because it’s incredibly resilient against high temperatures, making it an ideal material for vacuum tubes, which can generate a lot of heat during operation. Plus, ceramic is robust against wear and tear, making it able to withstand the rigors of regular use for years to come.

Silk-Screen Printed Logos
Even the logos deserve a special mention. Silk-screen-printed onto the tubes, they demonstrate Ray Tubes’ commitment to superior craftsmanship down to the smallest detail. This time-honored printing technique yields results that are not only aesthetically pleasing but also durable, ensuring the design work remains vibrant and intact over time.

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

Product highlights

• Hand-selected and tested
• Gold pins for corrosion resistance and excellent conduction
• A substantial upgrade from standard NOS tubes
• Low noise and microphonics
• Fewer than 5% of the tubes commissioned for production meet our voltage, current, and sound signature standards

Compatible Amps

Explore Ray Tube's Tube Amp Compatibility List

Product Details

Unlock New Layers of Sound
The SELECT 300B is the best 300B 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 favorites.
Hand selected and tested, the Ray Tubes SELECT 300B 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 our standards.
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.

Sound Characteristics
The SELECT 300B captures the heart of what makes the 300B tube legendary—lush mids, graceful highs, and a coherent, musical bass foundation. It stands out for its ability to deliver genuine tube character with a high degree of listenability and system compatibility, making it a compelling choice for music lovers seeking both value and performance.

1. Bass Performance
   Controlled and cohesive. Bass notes are supple and elastic, with moderate extension and just the right amount of body. It doesn’t overwhelm the soundstage, making it ideal for genres like acoustic, jazz, and classical music.
   Midrange Performance
2. The midrange is where the SELECT 300B truly excels. Rich, full-bodied tonal character with a touch of warmth. Vocals are especially well rendered, from baritone to soprano.
3. Treble PerformanceDelivers the characteristic smoothness of the 300B, with a layered treble extension and a natural sense of sparkle. A soft warmth in the upper register gives strings and female vocals a refined, non-fatiguing presence.

Tech Specs

We understand the anxiety of shopping online in Malaysia particularly on startup and small business website; you don't get to physically hold the product before buying, how will you know if the product will live up to your expectations,... - which is why we are committed to

1. Only sell/advertise products or brands that we believe in
2. Thoroughly research a product/model to save you time and get the most value for your money 
3. Go the extra mile to properly package items for shipping
4. Rely on reputable courier service (*not necessarily the cheapest)
5. Provide second to none customer service (Lazada/Shopee gets thousands of visitors a day, we have Only You to focus on)
6. Safeguarding your privacy & offer a seamless user experience on our ecommerce webpage
7. Ensure all pages and content on TechX are accessed using SSL encryption (*look for the padlock icon on the left side of the address bar...SSL allows sensitive information such as credit card numbers, login credentials to be transmitted securely)
8. Your satisfaction! We believe we sourced for the best quality products around, however sometimes life happens. If for any reason you are not 100% satisfied with the quality of any product, we will gladly refund your money within a week.

In the event you still need further assurance, write to us via our Contact Form and we'll get back within 2 hours.