Boundary Layer Microphone Preamplifier PCA from Japan
Low-profile printed circuit assembly for boundary layer (PQ) microphones used in conference tables, classified under 8518.10.40. Provides phase-coherent amplification from surface-mounted capsules. PCA of specified professional mics.
Duty Rate — Japan → United States
12.5%
Rate breakdown
9903.05.4912.5%Except for products described in headings 9903.05.85–9903.05.92, articles the product of Japan, with an ad valorem (or ad valorem equivalent) rate of duty under column 1 less than 12.5 percent, as provided for in U.S. note 52 to this subchapter
Import Tips
• Specify 'boundary layer' design in commercial invoice for proper subheading linkage
• Include phantom power circuit diagrams to validate professional mic compatibility