550W at 4 ohms, all-tube preamp, dual independent input jacks both compatible with active and passive basses, exclusive Aural Enhancer circuitry, Subwave with level control, limiter with defeat switch, active bass and treble controls, variable midrange EQ, effects blend control, and ultrahigh-polished aluminum front panel with chrome rack handles. Back panel features include sidechain mono effects loop, balanced XLR line out, tuner send, subwave footswitch jack, dual Speakon and 1/4" speaker outputs.

Son Of Bertha is a 350 watt, 1x15" speaker with a tweeter. This is a lightweight and compact powerhouse. Complete with a bottom slot port, spring loaded rubber grip handles, black Ozite carpeting and stack lock corners.