The SVt-3 is a 450 Watt power house. Housed in a nice, comfy road case it is still portable and giggable.
Check these specs from Ampeg:
MS Power Output (8 Ohms): 275-Watts
RMS Power Output (4 Ohms): 450-Watts
Preamp: Tubes (3 x 12AX7)
Driver Tubes: 1 x 12AX7, 1 x 12AU7
Power Amp: Solid-State
Tone Controls: 3-Band
Mid Tone Control: 5-Position
Graphic EQ: Yes, 9-Band
Ultra Low/High Boosts: Yes
Balanced Line Out: Yes, Pre/Post with Ground Lift and Level
Effects Loop: Yes
Preamp Out/Power Amp In: Yes
This amp is lightly used and works like a boss! We'll ship it out to you swiftly and safely the next day.