6061 CORE Subminiature Microphones are just 3 mm (0.12 in) in size but pack the audio power of our larger, award-winning DPA mics. What they lack in size, they more than make up for in clarity, consistency and durability – three qualities that really matter. In terms of technical specifications, the 6061 has a noise floor of only 26 dB(A), which is on par with the 5 mm (0.20 in) DPA miniature capsules.