Pure Markbass Tone, Straight Out of the Box Endorsed by renowned bassist and educator Jeff Berlin, founder of The Players School of Music, the Markbass CMD JB Players School delivers great tone straight out of the box — no EQ required. That's not to say that there isn't ample tone-shaping onboard, however. Built around the Markbass Little Mark 250 Black Line head, this pint-sized bass combo amp features Gain, 4-band EQ, and Master volume controls, bolstered by Vintage Loudspeaker Emulator (VLE) and Variable Pre-shape Filter (VPF) controls for dialing in your overall sonic character. You also get a Line Out level control, joined by Pre EQ/Post EQ and Ground Lift switches. A high-quality effects loop is also on tap, making it easy to integrate your pedalboard. Weighing in at just over 35 pounds, the CMD JB Players School offers lightweight portability for practice, rehearsals, and small gigs while maintaining the