- Modern/Classic switch
- Modern channel: volume knob, comp knob with switch and LED
- Classic channel: gain knob, volume knob
- Equalizer: 3-band passive EQ
- 30 Watt
- 1x10" speaker
- 2 channels.
At just 30 Watts with single 10” speaker the MB30 packed all the Marshall power needed for a serious small bass amp. With two channels, Modern and Classic, and a three band passive EQ network featuring a mid Voice control, the MB30 was sonically flexible, while its small size made it very portable, and it was big enough to entertain a small crowd.
The MB30 also featured an emulated DI out and a built in switchable Compressor on the Modern channel, which made it great for recording.