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Audio-Technica ATM350 UniMount Cardioid Condenser Instrument Microphone System

Every ATM350 UniMount system starts with the same ATM350a cardioid condenser capsule, a small, high-SPL mic that gives a clear, well-balanced response on close-miked instruments, then pairs it with mounting hardware built for one specific instrument. The drum version (ATM350D) uses a spring-loaded clamp that grips a drum lug without blocking tuning access; the guitar (ATM350GL) and piano (ATM350PL) versions use a 9-inch gooseneck for extra reach; the surface version (ATM350S) is built for accordions and other hard-to-mike instruments; and the woodwind version (ATM350W) straps securely to any woodwind body.

Every configuration runs through Audio-Technica's AT8543 in-line power module, which carries a switchable 80Hz high-pass filter to tame low-frequency noise, and every kit also includes an AT8468 violin mount with a hook-and-loop fastener as a second mounting option, plus a protective carrying case. The cardioid capsule itself is field-swappable for an optional UE-H hypercardioid or UE-O omnidirectional element if the room or instrument calls for a different pattern.

ElementATM350a fixed-charge back plate, permanently polarized condenser
Polar PatternCardioid (UE-H hypercardioid, UE-O omni available separately)
Frequency Response40-20,000 Hz
Low Frequency Roll Off80 Hz, 12 dB/octave (switchable, on power module)
Maximum Input Sound Level159 dB SPL, 1 kHz at 1% T.H.D.
Phantom Power Requirements11-52V DC, 3.5 mA typical
Cable4.0 m (13.1') to power module, HIROSE HR10-type connector
IncludedAT8543 power module, instrument mount + gooseneck, AT8468 violin mount, carrying case
ATM350D Overview: Drum Mount Microphone System
Audio-Technica ATM350GL Unboxing, Installation and Demo