Electro-Harmonix 6550 Vacuum Tubes Feature CryoAcoustic Treatment by Music Direct for Better Sound and Longer Life: Finest Tube Available for Any Amp Using 6550 or KT88 Types
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. Comes with CryoAcoustic Treatment by Music Direct.
Music Direct CryoAcoustic Tube Treatment
Tubes have long been renowned for providing unparalleled audio experiences. But did you know you'll hear even better sound and enjoy longer tube life with our cryogenically treated tubes? The improvement is so profound, Music Direct no longer offers any tubes that are not cryogenically treated. We have invested in our own cryogenic machine, allowing us to do our own in-house testing with temperatures and ramp up/ramp down cycles to maximize the effects on the materials. Countless hours of listening tests have confirmed the advantages of CryoAcoustic Treatment.
The cryogenic process involves cooling materials to very low temperatures through the use of liquid nitrogen. Temperatures reach as low as -190 °C, and the process registers a profound impact on the mechanical properties of materials – particularly metals. Used in aerospace technology, medical tooling, musical instrument construction, critical automotive components, high-pressure cutting tools, and performance-critical sporting goods, cryogenics considerably improve the sonic presentation of vacuum tubes, cables, transformers, and other audio-related products – as well as their internal components. Resistance to corrosion, firmer hardening, and added strength are just a few of the scientifically proven effects of cryogenics. And while the sonic benefits cannot currently be scientifically proven, listening tests confirm an increase in acoustic resolution – which is why we call our process CryoAcoustic Treatment.