Spectrum Assembly, which was established in 1993, has an 80,000 sq. Carlsbad, California, facility, ft. which is just 98 miles south of Los Angeles and 43 miles north of San Diego. We have established ourselves as the go-to provider for our customers' design, manufacturing, and testing needs for printed circuit assemblies, complex box builds, and cable harnesses as a full-service turnkey contract manufacturer. Our established manufacturing relationships are a direct outcome of SAI's commitment to putting the needs of its clients first. We deliver a high-caliber product on time and at a fair price. View our space in use. Book a tour right away.Our contract manufacturing activities are located in a cutting-edge building in Carlsbad, California, which is part of San Diego County.