The KR Kronzilla DX monoblock has 2 T-1610 Kronzilla tubes in parallel for a total output of 100Watt SET. Here is a review: http://www.enjoythemusic.com/superioraudio/equipment/0506/kr_audio_dx_monoblock.htm
The Kronzilla SX and SXI stereo versions output 50W each.
The Kronzilla SX and SXI stereo versions output 50W each.