The Bass Multiamp S offers bassists an incredibly wide range of virtual bass amps, both modern and vintage, along with virtual speaker cabs, microphones, studio and stompbox effects, all combined with a powerful power amp...in a practical 2-space rackmountable unit. The Bass Multiamp S features an easy-to-use interface and a stereo 2 X 500W@4ohm Class D power amp. This can be mono-bridged at 1000W (@8 ohms) for the ultimate in lightweight, multi-voiced bass amplification. Weighing in at only 9.5 lb., this two-rack head offers bass players portable and complete tonal control.