The ABM 900 EVO II is a 2 x 575W RMS bass amp head designed to satisfy both bass purists and tech-heads alike. 3 rotary tone controls provide 20dB of cut and boost at 60Hz, 660Hz and 5kHz and are supplemented by 2 pairs of additional sliders giving 15dB cut and boost at 180Hz, 340Hz, 1.3kHz, and 2.6kHz. The EQ can be switched on/off and flat/shaped by footswitch, enabling you to go from a flat fretless sound to a boosted sound with ease. The single input is switchable for passive and active instruments. A blend of solid state and dual-triode tube preamp stages can be preset and selected by footswitch, providing access to a massive range of clean, warm, and overdriven tones.Please message us if you have any questions.