Ray Tubes Reserve 300B Vacuum Tube

Our Take

The Best of the Best
The RESERVE Collection of Ray vacuum tubes are artfully designed and carefully manufactured solely for hifi audiophile devices. With the RESERVE, vocals are a revelation: smooth, lifelike, and beautifully present. They convey a sense of realism and immediacy without any bloat, offering a gentle yet compelling delivery with superior decay. The treble is crisp yet laid-baid, carefully balanced to avoid sibilance or harshness. This balanced sound signature extends to the low-end as well: full and commanding, contributing to an overall superbly realistic imaging that is brain-scratchingly good.

Engineered Exclusively for Audiophile Systems
Explicitly engineered for audiophile applications, the RESERVE Collection of vacuum tubes are crafted through a unique process that targets the specific needs of audiophiles, focusing on critical sound characteristics such as vocal realism, texture, and extended bass. Every aspect of their design and manufacture is aimed at enhancing the listening experience in high-fidelity systems.

Ensuring Excellence
Every vacuum tube in the RESERVE Collection is subjected to a stringent quality assurance process. An audio engineer personally assesses each vacuum tube against a detailed checklist that includes sound profile, dynamics, microphonics, gain, conductance, and noise levels, along with overall performance. This ensures not only that the vacuum tubes align with audiophile expectations for sound quality but also that they meet our rigorous standards for reliability and consistency.

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.

Magic Coating
Some things are better left unseen. You can't see inside the RESERVE tube because it's coated with something called monocrystalline carbon. This layer allows for quicker electron transmission, keeps the glass cool, and blocks out noise. If you've got an engineering background, you might find the science fascinating. For the rest of us, it's basically magic. The coating is delicate and tough to apply, which complicates production. That's why Ray only uses it for their RESERVE tubes and why it costs more. When all is said and done, it just means one thing- the sound is amazing.

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

Ray Tubes Quality Control
From extensive burn-in to expert listening sessions, Ray Tubes goes above and beyond to guarantee each tube they sell is ready for your high-end system. Read more about the process on their blog.

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

When Only the Best Will Do
The Ray Tubes RESERVE 300B isn’t for everyone. It’s the distillation of decades of experience. With a bespoke design, small-batch production, and meticulous selection, the Ray Tubes RESERVE Collection reveals audio details you never knew were there.

Hand selected and tested, the Ray Tubes RESERVE 300B is designed specifically for hi-fi audio applications. Featuring gold-plated pins and our monocrystalline carbon Magic Coating, the RESERVE Collection easily outperforms New Old Stock and new production alike. 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 RESERVE 300B delivers warm and elastic low frequencies, delicate and layered midrange, clear and smooth high frequencies, and rich details. Its moderate dynamic range and wide, well-defined soundstage offer a good sense of space and clarity.

1. Bass Performance
   Warm and elastic, offering a delicate and textured low-end ideal for genres like jazz and folk.
2. Midrange Performance
   Full-bodied and emotional, particularly in vocals and strings, with transparent and rounded sound showcasing rich layering and warmth.
3. Treble Performance
   Clear with an airy feel, smooth and detailed, presenting rich nuances with a natural and gentle sound that avoids excessive brightness.
4. Dynamics and Soundstage
   Moderate dynamic range effectively highlights contrasts in loud and soft passages. Soundstage is wide and well-defined, with excellent depth and space, making it suitable for smaller ensemble music.

Tech Specs

TechX Guarantee

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.