The SRM450 has tight bass to below 55Hz and articulate
treble out to 20,000Hz. Midrange is warm, and natural. Its incredibly
wide dispersion lets your whole audience hear clearly, whether they're
in the front, back, or out on the sides of the room. And most of
all, the SRM450 can really belt it out! It easily achieves sound
pressure levels well beyond those of your conventional speakers.
The Mackie SWA1501 is a 15-inch high output, active subwoofer system. Its double horn loaded chambers achieve a significant increase in output and lower distortion characteristics which lead to high resolution performance.