Evans BD20SO1 - 20'' SOUNDOFF BASS DRUMHEAD phaser The IMB30SS features an omni

The IMB30SS features an omni semisphere polar pattern and has a frequency response of 200 Hz to 30 kHz

With a noise floor 30

5dB or leave at 0db flat response

this monitor is ideal for rooms measuring less than 130 ft2 (12 meters squared)

while the Advanced Impulse DSP provides acoustic correction and time alignment via precision tuned FIR filters for a clear

Evans BD20SO1 - 20'' SOUNDOFF BASS DRUMHEAD phaser The IMB30SS features an omniTear it up while keeping it down. With a single ply of unique mesh material that dramatically reduces the drumheads volume, Evans SoundOff is ideal if youre looking for a low volume practice set up, or if youre building an electronic trigger setup for a gig.