Ashdown ABM600-RC-EVO EVO Series 600W Hybrid Rack Bass Amp Head

Valve Drive Character with Deep EQ Control and 600W Power

The Ashdown ABM600 EVO IV Bass Head is built for players who want a strong, weighty low end backed by detailed tone shaping and real valve-driven character, with a 12AX7 valve-driven preamp and solid state power amp. The 600W power section delivers plenty of headroom, keeping your sound full and controlled whether you're rehearsing, recording, or pushing volume on stage.

The upgraded Valve Drive preamp lets you move from clean, warm tones into thick, harmonically rich overdrive, with enough range to dial in anything from subtle grit to full saturation. The input VU meter makes it easy to set your gain structure accurately, helping you hit the sweet spot without guesswork.

The 9-band EQ is where this head really stands out. You can keep it simple with the bass, middle, and treble controls, or shape specific frequencies like tightening low-end around 100Hz, scooping low mids at 340Hz, or adding presence at 2.6kHz for more attack in a band mix.

The one-knob compressor evens out dynamics without overcomplicating things, while the sub-harmonic generator adds a controllable octave below your signal for extra depth when needed.

At Riffs & Licks Music, we think this head suits players who want precise control over their tone with the added weight and character of a valve-driven front end.