Ray Tubes

Ray Tubes 6SL7 SELECT Vacuum Tube

Name: Ray Tubes 6SL7 SELECT Vacuum Tube
Brand: Ray Tubes
SKU: 6SL7/SEL
Availability: InStoreOnly

SKU:

6SL7/SEL

$119.00 - $269.00

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Description
Specs
Dimensions
About Ray Tubes
Warranty

Description

SELECT 6SL7

The SELECT 6SL7 is the best 6SL7 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 favourites.

Hand selected and tested, the Ray Tubes SELECT 6SL7 is a substantial upgrade from both New Old Stock and other new production tubes. Fewer than 5% of production meets our standards.

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.

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, it continues the SELECT series’ pursuit of tonal refinement and musical realism.

Bass Performance

More relaxed and grounded than comparable tubes, with good definition, control, and articulation. Drum hits and bass lines are clear, contributing to a cohesive soundstage and smooth integration with mids and highs.

Midrange Performance

The standout strength of the SELECT 6SL7, characterized by a balanced tonal density and authentic presentation. Excels at conveying the nuances of vocals, violins, and cellos, while striking a pleasing balance between warmth and detail.

Treble Performance

Spacious and non-fatiguing, with a natural extension and gently rounded top-end. String, piano, and vocal overtones are graceful and refined. Ideal for systems prioritizing musicality and long-term listening comfort.

The SELECT Collection

SELECT brings out the best in all your favourites. It goes above and beyond the baseline with more involved production and stricter selection, all in pursuit of superior sound.

Above and Beyond

Every tube we sell is carefully produced and tested to make sure it’s good enough for audio applications. At Ray Tubes, that goes without saying. The SELECT Collection is about more than that. It’s not just good enough for audio—it brings out the best in audio, revealing all those hidden details you thought you’d never hear.

Not being content with industry-standard production methods, we’ve tweaked our manufacturing process. We’ve used better materials for improved durability and longevity. Most importantly, we’ve enlisted audio engineers to listen to our tubes and make sure only the very best get the coveted SELECT label.

The SELECT Collection takes the reliability and consistency of the CORE Collection as its starting point, then sets its sights on one goal: superior, more nuanced sound. Simple as that.

Chosen By Audio Engineers

The SELECT Collection is the best of the best. We know — you’ve heard that before, but we mean it literally. We only sell the best tubes in each of our manufacturing batches. (The others never see the light of day.) SELECT tubes? They’re the best of those.

We don’t trust just anyone to make that choice. It’s about more than gain and transconductance and other electrical characteristics. Those are useful guides, but we know they don’t tell the full story. Instead, we rely on something you can’t put a number on: expert opinion.

Our audio engineers have decades of experience and they’re involved in the selection process from start to finish. That includes the crucial final step: listening sessions under real-world conditions.

Our thorough quality control is why we can offer the Ray Tubes One Year Warranty. If you buy a NOS tube that turns out to be a dud, there’s nothing you can do. With the SELECT Collection, you’ll have peace of mind.

Unlock Your Amp’s Full Potential

Testing vacuum tubes in real-life audio equipment shouldn’t be revolutionary, but here we are. We know the Ray Tubes SELECT Collection will sound incredible in your amp because it sounds incredible in our amp.

Have you ever felt like your vacuum tubes are holding your whole system back? You’re not alone. It’s right there in the name—“amp”. Tubes are where the amplification happens. That’s why poor quality tubes hold you back.

The SELECT Collection helps your system reach its peak potential. With a lower noise floor and detailed, nuanced sound, SELECT tubes make good amps sound great and great amps sound sublime.

More Details

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. Click here for details.

Compatible Amps

Click here to explore Ray Tubes' Tube Amp Compatibility List.

Package Contents

Matched pair of two or single vacuum tube
User handbook featuring burn-in guidelines
Certificate of authenticity and warranty

Technical Specifications

Tube Type: 6SL7
Tube Socket: 8-pin

Filament (Heater) Ratings

Filament Voltage: 6.3V
Filament Current: 0.3A

Maximum Ratings (per triode)

Plate Voltage: 300 V
Grid Voltage: 0 V
Plate Dissipation: 1 W
Heater-to-Cathode Voltage: ±90 V

Static Characteristics (under typical conditions)

Plate Voltage: 250 V
Grid Voltage: –2 V
Plate Current: 2.3 mA
Transconductance: 1.6 mA/V
Plate Resistance: 44 kΩ
Amplification Factor: 70

Specs

Dimensions

About Ray Tubes

Warranty

The Ray Tubes One Year Warranty

This warranty covers manufacturing defects for twelve months after purchase. We believe that everyone who buys our tubes deserves at least a year of quality, hassle-free sound, and if our tubes get in the way of your bliss, we'll make it right. Click here for more details.