We like the clubs, the clubs that go "boom." Which is to say we respect power in a sound system. But we respect precision even more. We want to hear the highs just as clearly as we feel the ribcage-massaging bass. Which is why we recognize the Church's new 100-grand main sound system as world-class, not to mention the best in Denver. The new speakers and amplifiers, which were installed in stages beginning last November, all come from the JBL Application Engineered line. In the past, a lot of the Church's sound went to the ceiling, where no one could hear it. But with twenty new computer-controlled speakers, not one of those 70,000 watts is wasted.