Hartke 2500 Bass Head, 250 Watts into 4 Ohms, 180 Watts into 8 Ohms, Tube-Emulation & Solid-State Preamps, Bass & High Contour Control, 10and Graphic EQ, adjustable Compressor, passiv/active Inputs, DI-out with pro/post switch, 19", measurements: 44 x 9 x 33 (cm), weight: 15,2 kg