Can Moby play an acoustic set? His fans can tell the rest of us this morning. At roughly 1:30 a.m., a power outage shut down the 9:30 Club — along with other homes and establishments near 9th and U Streets NW and along Florida Avenue. As of this late hour, the Pepco outage map shows that several hundred customers were affected and that workers are on the case. The outage led one associate on the…