We make and distribute professional audio speakers for musical instrument and P.A. use with and without built in amplifiers. The operation has over fourty years of experience in audio. We buy raw drivers from 4" to 15".We also buy amplifiers to be built in the speaker boxes.Among the samples we desire are high power handling lightweight drivers with dual spider magnet components, small, 3" to 6" P.A. drivers. We begin with a minimum of four eng. samples at single pricing. Amplifiers to be used are rated from 25 to 300 watts RMS. We appreciate your interest.