6N1P-EV Matched Quad
6N1P‑EV Matched Quad – military‑grade dual triode with low noise and high reliability. Perfect for preamp stages in hi‑fi amplifiers, phono preamps, and headphone amps. They are a direct replacement for 6DJ8, ECC88, and 6922 tubes. Their low noise and distortion make them ideal for upgrading preamplifiers, phono preamplifiers, DACs, and headphone amplifiers. Manufacturer: VOSKHOD (Kaluga, USSR) - Rocket logo, NOS.
Each pair is tested on a digital tube tester—you will receive a report with the measured parameters.
6N2P-EV Matched Quad
6N2P-EV Matched Quad – military-grade dual triode with low microphony and high gain (µ ≈ 100). Perfect for preamp stages in guitar amps and hi-fi equipment. Manufacturer: VOSKHOD (Rocket logo) / NOS. Replacement: 12AX7, ECC83, 7025 (⚠️ requires 6.3V heater rewiring — not a direct drop-in!).
Each pair is tested on a digital tube tester—you will receive a report with the measured parameters.
6N23P Matched Pair
Matched pair of 6N23P vacuum tubes are high-quality, reliable preamplifier tubes for Hi-Fi amplifiers and phono preamps. They are a direct replacement for 6922, ECC88, and 6DJ8 tubes. Their low noise makes them ideal for upgrading preamps, phono preamps, DACs, and headphone amplifiers. Manufacturer: VOSKHOD (Kaluga, USSR) - Rocket Logo / NOS.
Each pair is tested on a digital tube tester. Matched within 5%. You will receive a report with the measured parameters.
6S45P-E Matched Quad
Matched quad of 6S45P-E tubes — high-quality, high-transconductance (high-slope) triode. Extremely low noise and high current capability make it an ideal driver for single-stage single-ended (SE) amplifiers and headphone amps. Direct replacement for WE437A and 6S15P. Manufacturer: REFLECTOR (Saratov) / NOS
Each quad is tested on a digital tube tester—you will receive a report with the measured parameters.
6N15P
GMI-46B
