The Sterling Audio ST44 is a small-diaphragm tube condenser microphone that incorporates a hand-built capsule with a thin, 6-micron evaporated gold Mylar diaphragm. Optimized to capture the most definition and detail from all acoustic instruments like piano, drums, and guitars, the ST44's low-noise GT6205M tube in a Class-A triode circuit provides warmth and detail, adding new dimension to vocal and especially instrument recording. Requires phantom power.