From Electro-Harmonix
Ultra-low noise thanks to unique spiral filament which eliminates cathode-to-filament induced hum on certain amps
Best all-around choice and best value for 12AX7
ECC83/7025 equivalent
Many OEMs use relabeled Electro-Harmonix vacuum tubes in their amplifiers
Free 3-Year Warranty
In addition to the standard included manufacturer warranty, virtually all new products carry our exclusive, industry-leading, absolutely free Sound Pure 3-Year Warranty, which includes parts and labor. It's our way of adding real value to the personal touch our small, dedicated team brings to every purchase.
Coverage exclusions live in Terms & Conditions, Section 27. Read the warranty →
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Sound Pure Studios · Durham, NC
Come hear it in our control rooms.
Sound Pure is a working studio in Durham, NC — a 1,000 sq ft live room and two pro control rooms. Book a session to audition gear in a world-class acoustic space before you buy.