The Sovtek 6550WE features a metal-ringed base for increased power-handling capabilities. Thicker plates, improved heat dissipation, higher transconductance, and increased linearity are just some of the inherent aspects of the Sovtek 6550's. The resulting performance advantages include 5% higher output power, increased reliability, greater headroom, and superior tone.

All tubes are burned in, and then tested to insure accurate matching. Tubes are matched for equal current draw and transconductance, for maximum performance. Please vist our FAQ page for more details.

Price shown is for a matched pair. Use option below for matched quad, sextet pricing.