M-Audio BX4 4.5" Powered Studio Monitor (Pair) 4 Channels Jimmy's model measures in between

Jimmy's model measures in between a 5A and a 5B in the grip

and superior durability

Sound Isolating™ technology

Its 5′ 5″ frame is smaller than a traditional “classic grand

If two people speak simultaneously the gain distribution between the active microphones is adjusted to achieve consistent overall gain

M-Audio BX4 4.5" Powered Studio Monitor (Pair) 4 Channels Jimmy's model measures in betweenFeatures 4. 5" Kevlar low frequency drivers; 1" natural silk dome tweeters New computer optimized tweeter waveguide for precise imaging High EQ and Low EQ controls for dialing in the perfect sound Enhanced rear ports for extended low frequency response Left right Active Speaker Position switch for configuring which side has volume control 1 4", 18", and RCA inputs for connecting to virtually any audio source Front 1 8" AUX input for quick connection