Ray Tubes SELECT 6SL7
The 6SL7 is a high-mu variant of the more common 6SN7. Like many tubes, it was used extensively for military purposes during World War II, but slowly fell out of use in the following decades. Starting in the 1970s, renewed interest in Japanese tube audio eventually led to a resurgence in 6SL7 popularity.
Product Highlights
The Ray Tubes SELECT Collection offers the best tubes youʼll ever need. It goes above and beyond the baseline to bring out the best in all your favourites.
● Designed and manufactured by a team with decades of experience
● Hand-selected by engineers—only the top tubes make the cut
● Substantially more consistent performance than New Old Stock
● Unlike NOS and most other new production, covered by the Ray Tubes
One Year Warranty
Sound Characteristics
The SELECT 6SL7 delivers a refined and engaging sonic character that faithfully captures the essence of the classic 6SL7 sound while offering modern improvements in clarity and balance. Ideal for preamp stages, vocal-focused systems, or high-fidelity tube setups.
● The bass is more relaxed than comparable tubes, with good definition, control, and articulation contributing to a cohesive soundstage.
● Midrange frequencies are the standout strength, offering a balanced tonal density. Captures the nuances of vocals, violins, and cellos, while striking a pleasing balance between warmth and detail.
● The treble performance is spacious and non-fatiguing, with a gently rounded top-end. Ideal for systems prioritizing musicality and comfort.
Our Quality Control
Our Quality Control Each tube undergoes a seven-step quality control process, including a 24-hour burn-in period, stress tests to minimize microphonics, and critical parameters that are carefully measured to ensure consistency and accurate matching. Finally, sound engineers assess each tube under real-world listening conditions.
By the end of the quality control process, only 5% of tubes commissioned for production meet Ray Tubesʼ standards.
Our Warranty
Books have been written about the countless ways vacuum tubes can and do fail. With most manufacturers, and all New Old Stock, a tube failure leaves the user high and dry. Ray Tubes is different. All Ray Tubes products are backed by the Ray Tubes One Year Warranty, which covers manufacturing defects for twelve months from the date of purchase.
6SN7 Technical Specifications
|
Specification |
Value |
|
Tube Socket |
8-pin |
|
Max Anode Dissipation Power |
5 W |
|
Max Anode Voltage |
450 V |
|
Max Screen Voltage |
N/A |
|
Max Grid Voltage |
~8 V |
| Heater Voltage |
6.3V |
|
Heater Current |
0.6 A |
|
Transconductance |
2.6 mA/V |
|
Amplification Factor |
20 |
|
Internal Resistance |
7.7 kΩ |
ThomasAndStereo
Ray Tubes Select 6SL7
