Ashdown Hod-600 600 W Bass HeadThe Head of Doom Geezer Butler Signature Bass Amp Head infuses your playing with fat, gut churning tones and phenomenal low end muscle. And it's bursting with features. The Doom control gooses this 600 watt beast's 12AX7 preamp stage, soaking your tone in rich harmonic distortion. Sculpt your sound further with the Head of Doom's 9 band EQ, while you target your sonic sweet spot with dual VU meters. Produce earthshaking sub harmonics with the Subs