The Mackie MR524 speakers are active 2-way studio monitors, that can be used for a range of applications such as recording studios, AV, sound-post and even home theatre set ups. The MR524 feature a 5.25-inch woofer and 1-inch silk dome tweeter, with a frequency response of 45Hz-20kHz. The MR series has two different filters on the rear panel for high and low frequency adjustments. This allows for subtle tuning of the speakers to match your room.