The M40 Condenser Microphone by AMT is designed to be set inside a grand or upright piano to capture live performances with a natural and even sound. While geared for sound reinforcement, it works equally well in the recording studio or as a boundary mic for a conference or a stage.
The microphone is intended to be placed between the 2nd and 3rd sound holes on the cast-iron plate of a grand piano or fastened to the front bottom door of an upright piano. It delivers an accurate sound with a flat frequency response (20 Hz to 20 KHz) and can handle SPL up to 141 dB to capture subtle passages or thunderous fortissimos. The mono design precludes the introduction of phase issues often associated with multiple microphones, and ensures that the individual sound characteristics of each particular piano remain uncompromised.
This compact and lightweight microphone allows for a wide range of placement options. It is particularly well suited to work with the piano lid closed, removing the need for cumbersome mic stands and providing additional isolation in loud environments.
Housed in a machined-aluminum box, the AP40 preamp features Integrated Circuit technology that incorporates an interchangeable chip for multi-purpose use. It can be powered by external phantom power or 9V battery.
Handcrafted in the USA, the M40 features a durable anodized-aluminum construction to withstand high impacts and protect the unit from the rigors of stage use. It comes with a a hard shell case and a 10' audio cable that connects the mic to the preamp.