Designed for the club professional who is looking for an all-tube amp with multiple tones. The RM50 gives you 50W of power using Ruby 6L6 tubes, a 12" Celestion G12 Century speaker, and 2 modular channels for plugging in Randall preamps. Controls include master volume, master density and presence controls, and front panel mix control. Connections include a tube-buffered parallel effects loop, series effects loop, slave out, rear master input (for volume pedal), and rear bias test points.