Introducing the ACM SERIES of professional condenser microphones from ALTO. With their progressive design and performance, the ACM SERIES is comparable to other known brands in the microphone market.

‧Frequency Response: 25Hz to 20kHz
‧Polar Pattern : cardioid
‧Switch: low-frequency attenuation switch 0, -10dB,
               -20dB sensitivity attenuation switch
‧Sensitivity (@1kHz, 74dB S.P.L): 16mV/Pa
‧Impedance: 200Ω
‧Equivalent Noise Level: 19dB (A weighted)
‧Max SPL for 0.5% THD@1kHz: 120dB
‧Power Requirement: ＋48V