Genalex Gold Lion 300B Power Vacuum Tube

The Genalex Gold Lion PX300B stands out as one of today’s finest 300B audio power triodes. Evoking the classic Western Electric design, it merges traditional craftsmanship with enhanced materials. Its gold-plated grids and contact pins prevent oxide buildup, extending tube life. The unique quadruple spring-loaded filament and cathode supports ensure long-lasting operational stability. With plates longer than typical models, it dissipates 40 watts—6 watts more than Western Electric tubes—delivering fuller bass dynamics before saturation. This tube offers precise midrange clarity and elegant high-frequency detail, making it a top choice for discerning audiophiles.