
Unlock New Layers of Sound
The SELECT 6SN7 is the best 6SN7 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 6SN7 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 6SN7 vacuum tube is a dual triode usually found in the driver stage of power amps. It’s been used in audio amps since its introduction in 1939. From 1949, it was used in the famous Williamson circuit. Outside of audio applications, it was a crucial component in ENIAC—the world’s first digital computer.
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Sound Characteristics
The SELECT 6SN7 provides a rich and detailed sound, perfect for users who seek a broad dynamic range and expansive soundstage, particularly suited for complex music compositions and systems requiring precise imaging.
- Bass Performance
Solid and deep, with good extension and dynamic range. The low end is fuller, making it suitable for complex music genres like jazz and classical. - Midrange Performance
Rich and detailed with a warm and natural tone. Both male and female voices sound warm and inviting, with a beautifully smooth texture and high levels of detail. - Treble Performance
Clear and transparent, offering precise detail without being harsh. The high frequencies are well-extended, exhibiting fine nuance and tonal balance without being overly forward. - Dynamics and Soundstage
The dynamic range is wide, with fine reproduction of volume changes. The soundstage is expansive, with clear imaging and excellent separation, offering a strong sense of space ideal for larger-scale music compositions.

Technical Specifications
- Tube Type: 6SN7
- Tube Socket: 8-pin
- Max Anode Dissipation Power: 5 W
- Max Screen Dissipation Power: N/A
- Output Power in Class A1 Amp (Single Tube): N/A
- Output Power in Class AB1 Amp: N/A
- Max Anode Voltage: 450 V
- Max Screen Voltage: N/A
- Max Grid Voltage: ~8 V
- Heater Voltage: 6.3 V
- Heater Current: 0.6 A
- Transconductance: 2.6 mA/V
- Amplification Factor: 20
- Internal Resistance: 7.7 kΩ

Package Contents
- Set of four, two, or single vacuum tube
- User handbook featuring burn-in guidelines
- Certificate of authenticity and warranty


The Ray Tubes One Year Warranty
Most vacuum tubes are notoriously fickle. That’s why warranties are rare. But we trust our products and we’re proud to offer our One Year Warranty against manufacturing defects. For more details, check out our warranty page.


ecoustics - W. Jennings
At only $64.99 each, the Ray Tubes SELECT 6SN7 vacuum tubes may deliver the dynamics and authentic sound you’ve been seeking.
10/05/2024
Link to Review

Audio Masterclass
With the 6SN7 SELECT tubes, the sound is warm and clean.
5/27/2024


Currawong
The Ray 6SN7 SELECT tubes are a very neutral-sounding tubes with a reasonable amount of detail and they're very suited to kind of mid-range amps.
5/18/2024


Tharbamar
The Ray 6SN7 SELECT tubes are highly recommendable.
4/20/2024


iiWi Reviews
They reveal plenty of details...edges are quick and snappy and very precise, while tone texture is quite obvious...they're very open in high frequencies....the sensation of air and space and big soundstage is great.
3/19/2024


The Honest Audiophile
It's not quite as thick and full as other tubes I've heard. It has a more airy presentation....it has more of a focus on details and resolution and tone and timbre....and it has a great width and depth and layering. I was rather impressed.
2/25/2024



Prime Audio Reviews
The Ray 6SN7 SELECT vacuum tubes offer a markedly warm and smooth sound, introducing a lush tubeyness that emphasizes the midrange and captivates with its richness. Additionally, they provide a subtle touch of euphony, enhancing vocals to be more upfront and intimate.
2/14/2024
Link to Review

Prime Audio Reviews
Quite a revelation. Never in the past have a heard such a significant change from stock tubes. They romanticize the sound, move away from clinical exactness and favor a musical presentation. They provide lush tubiness.
2/14/2024



Passion for Sound
Clean-sounding, dynamic, and energetic. It's got sparkle and resolution in the top end. I love the balance it brings. The bass is full and tight and full of body. A great sense of texture and clarity at the top end. I like that it's neutral-sounding.
2/6/2024


THE HEADPHONE EXPERIENCE - William Murdock
The Ray 6SN7 SELECT tube have a warm rich sound, excellent clarity and detail, and a wide and a deep sound stage.
1/28/2024


Reviews By WaveTheory
The 6sn7 Select does a little bit of the warming and thickening of the sound that is stereotypical of the tube sound.
1/27/2024
Where to Buy
Local retailers are the heart of audiophile communities around the world, which is why we believe they’re best positioned to help you with your purchase. Ray Tubes are available from our retail partners worldwide—click the button below to find one in your region.

SELECT → RESERVE
Looking for something special? 6SN7 is also available in the Ray Tubes RESERVE Collection.
RESERVE is the difference between “need” and “want”. SELECT is the best tube you’ll ever need—RESERVE is the tube you’ve always wanted. With bespoke design, small-batch production, and meticulous selection, the RESERVE Collection represents the pinnacle of decades of audio knowledge. It’s not for everyone—but it might just be for you.
RESERVE 6SN7