I had the privilege of using this with a Markbass Little Mark III, and the volume and clarity through all ranges of the instrument was astounding. I think it's impossible to get this thing to sound muddy. The amp belonged to a former member of the band Aranda, who described it as his new favorite gigging rig. I was playing with a basketball pep-band which consisted of about 25 members, and I never had to turn the volume up past 1/4. Aside from the incredible performance of it, it's very compact and not too heavy. I've played several bass rigs since then and none of them even come close to what Markbass has going. I cannot recommend this enough.