Apos Ray Vacuum Tube 6SN7 Reserve


Have You Hugged Your Ears Today?

At Apos, we have a deep-rooted passion for the rich, warm sound that only vacuum tubes can produce. To rekindle this love for an authentic and immersive audio experience, we're proud to introduce the Apos Ray Vacuum Tubes.

The New Standard: Hand-Selected and Rigorously Tested

Unlike most tubes available today that are New Old Stock (NOS), ours are brand new, hand-selected, and rigorously-tested to meet our strict quality standards. By bypassing the unpredictable quality of NOS and instead choosing our freshly minted tubes, we're making the sublime audio experience of vacuum tubes more accessible. 

Reserve: The Best of the Best

Our Apos Reserve 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, while never being over-revealing. This balanced sound signature extends to the low-end as well: full and commanding without being bloated, contributing to an overall superbly realistic imaging that is brain-scratchingly good.

Sonic Brilliance

With the Apos Ray Vacuum Tubes, your favorite tracks take on a whole new dimension. These tubes deliver sparkly and precise high-end with bass that’s punchy and tight. Hi-hats cut through with clarity, while vocals are soulful, textured, and realistic. With impressive depth and separation, these tubes promise sound that's clear, resolving, and an absolute delight to your ears.

Silk-Screen Printed Logos

Even our logos deserve a special mention. Silk-screen-printed onto the tubes, they demonstrate our 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.

Settling into Your Soundscape

To get the most out of your Apos Ray Tube, we recommend a burn-in time of at least 6 hours. Just plug the tubes in and leave the amplifier on. While there’s no need to play music during burn-in, you can if you’d like to hear for yourself how the tubes change over this remarkable period in their lifecycle. 

Keeping Your Tubes Tip-Top

A little care can go a long way in extending the life of your Apos Ray Tubes. Let them warm up for about 5 minutes before each listening session. When removing the tubes, pull vertically while applying a slight rocking motion back and forth. 

Rest Easy

With our Apos Warranty covering you for twelve months against manufacturing defects, you can relax knowing that your purchase 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
  • Apos 12-month warranty against manufacturing defects


  • Tube type: 6SN7
  • Socket: 8-pin

Compatible Amps

Note: This list is not comprehensive 

  • xDuoo TA-26s
  • Eddie Current Super 7
  • Eddie Current Balancing Act
  • Eddie Current HD300
  • Eddie Current HD25
  • Apex Peak
  • Apex Pinnacle
  • Apex Teton
  • Darkvoice 336i
  • Darkvoice 336se
  • Singlepower PPX3
  • Singlepower MPX3
  • Wheatfield HA2
  • Woo Audio WA5-LE
  • Woo Audio WA-22
  • Feliks Euforia
  • Amsandsound Mogwai
  • Amsandsound Casablanca
  • Atma-Sphere M-60

What’s included

  • Apos Ray 6SN7 Reserve Tube
  • Manual booklet

Help Shape Our Vacuum Tube Legacy

With the launch of our Apos Ray Vacuum Tubes, we embark on an exciting mission to create a comprehensive lineup of tubes that cater to the discerning audiophile. We view this as a collaborative journey with the audiophile community and value your feedback and support to shape our future tube lineup. Let us know what other tubes you'd like us to create.

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