Markbass Standard 151HR Rear-Ported Neo 1x15 Bass Speaker Cabinet 8 OhmThe Markbass Standard 151HR is a bass speaker cab that will never leave you lacking in the the bottom end department. The Standard 151HR bass cabinet's 15 in. custom speaker gives you a deep, classic sound that suits many musical styles. This cab can be used on its own, but combining it with a Markbass Traveler 102P or Standard 104HR makes for one powerful stack. So plug the Markbass Standard 151HR bass cab in and prepare to rock.