Interesting 15 Watt Tube amp with “power scaling an over drive and compressor Nice low power Jensen SpeakerPooor workmaship on the grill cloth fixing.. not enough staples.. leaving a wavy line pretty poor for such a priecy ampEH tubes branded fenderOne dead tube… I hope this is the only issue…Sovtek TubesDual Solid State Power amps!New tubes in a quick bias check and all sweet!Back on drop in voume using the effective solid state reamping (8 Ohm dummy load on the real tube amp) crank it till it bleeds and listen at bedroom volumes! Compressor and Overdrive good too!! Interesting 15 Watt Studio amp… with the most semiconductors I have seen in an amplifier recently. Hugely complex power scaling feature..only real issue was a dead output tube. All serviced she really does sound great! and the power scaling feature works well as does the compressor and overdrive. Great amp.