The B-BA50 is the Eko Guitars bass combo amplifier delivering 50W RMS of power through a 12" speaker. It features LOW and HIGH bass inputs, volume, bass, middle, and treble controls, an effects loop, and a headphone output.

B-BA50 by Eko Guitars specifications

Output Power: 50W RMS
Speaker: 12" speaker
Inputs: 1x jack input
Outputs: Phones out, effects loop (send-return)
Controls: volume, bass, middle, treble
Dimensions: (W) 515 x (H) 480 x (D) 305 mm
Power Consumption: 75W