Are these good speakers? I would like to use them with a Bag End P-S18E-I 18" powered subwoofer and use it with their Infra Integrator which will give bass down to 8hz. Are the DB speakers a good match for the Bag End? And if so, which model of 12", they make quite a few. I will be using this for small clubs with my band. I need quality, not volume. Thanks.