36 SOUND EQUIPMENT USED IN CONJUNCION WITH MUSICAL INSTRUMENTS CONSISTNG OF ELECTRONIC SOUND AMPLIFIERS, MICROPHONES, MICROPHONES FOR USE WITH AMPLIFIERS, AMPLIFIERS FOR GUITARS, ELECTRONIC SOUND GUITAR PICKUPS, CONTACT MICROPHONES FOR MUSICAL INSTRUMENTS, REVERBERATION UNITS FOR AMPLIFIERS, CABLE ASSEMBLY FOR ASSEMBLING ELECTRONIC COMPONENTS FOR INTERFUNCTIONING AND CONTROL ASSEMBLIES FOR CONTROLLING SOUND VOLUME TONE AND BOOSTING