... Combo(30w) Model NameSUPERBLUES AT-30SeriesAT SeriesTypeAll Tube Guitar Amplifier ComboOutput30 watts into 8 ohmsOhms8 ohmsTube Complement3*12AX7 ; 2 ... Speaker/ Special Design SpeakerChannels1 ChannelFeaturesFat,Reverb,Presence,Preamp Out,Power Amp inControlsGain,Fat Switch,Treble, Bass,Middle,Volume, Reverb,PresenceWeight19.2KG ... .9*30.8*53.8 (cm) SUPERBLUES AT-30 Guitar Amplifier (Tube Guitar Amps)