Ray Tubes Vacuum Tube - 300B SELECT

2,790 SEK

Flagship Tubes for Audiophiles – Maximum Musicality and Presence The Ray Tubes SELECT 300B is a premium direct-annealed triode tube, developed to deliver an exceptionally rich, natural and dynamic sound experience. The 300B tube is loved worldwide for its unique musicality – and in the Ray Tubes SELECT version you get the best that modern production has to offer. Each tube is hand-picked, measured and tested by experienced engineers to ensure outstanding performance, reliability and longevity – far beyond what NOS or regular new production can offer. Why choose the Ray Tubes SELECT 300B? * Hand-picked specimens – only the most precise and stable tubes make it through the selection * Gold-plated pins – for long life and the best possible contact * Extremely consistent performance – no variations, just consistently top-notch * 1-year warranty – unique protection in a class where many tubes are otherwise left to chance Sound Character: * Bass: Deep, organic and controlled – with natural weight * Midrange: Incredibly vibrant and transparent – reproduces voices with presence and warmth * Treble: Soft but detailed – without sharpness, even at higher volumes * Dynamics & soundstage: Open and expansive soundstage with fantastic separation, placement and realism Ray Tubes SELECT 300B is the first choice for those who have invested in an amplifier in the absolute reference class – and who want to experience music with the greatest possible feeling and authenticity. Compatible amplifiers Explore Ray Tubes' compatibility list for tube amplifiers.

Ray Tubes Vacuum Tube - 300B SELECT

The 300B is a legendary tube. Introduced in 1938, it powered the cinemas of Hollywoodʼs 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. 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 * Gold pins for durability and longevity * 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 300B captures the heart of what makes the 300B tube legendary—lush mids, graceful highs, and a coherent, musical bass foundation. * Bass is controlled and cohesive, with moderate extension and just the right amount of body. Ideal for genres like acoustic, jazz, and classical. * The midrange is where the SELECT 300B truly excels. Rich, full-bodied tonal character with a touch of warmth. Vocals are especially well rendered, from baritone to soprano. * Delivers the characteristic smoothness of the 300B, with a layered treble extension and a natural sense of sparkle. A soft warmth in the upper register gives strings and female vocals a refined presence.

Technical Specifications * Tube Type: 300B * Tube Socket: 4-pin Filament (Heater) Ratings * Filament Voltage: 5 V * Filament Current: 1.2 A Maximum Ratings * Plate (Anode) Voltage: 480 V * Plate Dissipation: 40 W Typical Operating Conditions * Plate Current (Self-Bias): 100mA * Plate Current (Fixed Bias): 70mA Interelectrode Capacitance at Zero Bias * Input Capacitance: 9 pF * Output Capacitance: 4.3 pF * Transfer Capacitance: 15 pF Static Characteristics (under typical conditions) * Plate Current (Ia): 60 mA * Transconductance (Gm): 5.5 mA/V * Plate Resistance (Rp): 0.7 kΩ * Amplification Factor (μ): 3.85 * Output Power (Pout): 6.6 W Package Contents * Set of four, two or single vacuum tube * User handbook featuring burn-in guidelines * Certificate of authenticity and warranty