Electro-Harmonix 6550 Vacuum Tubes Are Finest Type Available for Any Amp Using 6550 or KT88 Valves: Sold in Matched Pairs
Sold in matched pairs, the Electro-Harmonix 6550 vacuum tube is the finest production tubes currently available for any amp using 6550 or KT88 types. It offers the maximum power of any 6550 with the linearity you expect with any high-end amplifier. And it offers an improvement in power over even the most desirable vintage types, including the Tung-Sol 6550 and Genelex KT-88. The extra headroom in a 6550-equipped amp means you can realize the full dynamic range and sweetest tone available. Engineered to last a long time, the extra-rugged 6550 has nickel-steel side rod mica supports that ensure the tube will hold up in even the most punishing environments of high-powered amps and still deliver warmth, smoothness, and detail. This tube will greatly improve the performance of any amp using 6550s but can also replace KT88s in any application.