Mackie SRM450v3

2 Way, 128 dB, 47Hz - 20kHz, 8 Ohms, 250 VAC, 10 A The most widely used portable speakers ever; the all-new
SRM450 and SRM350 deliver the unparalleled ease-of-use,
professional sound quality and indestructible portability that
made SRM a live sound legend. Now packed with 1000W of
power, the widest selection of truly useful sound-enhancing
DSP and setup-friendly audio tools, SRM is ready for your
high-output application.
SRMs feature modern tools like application-specific
speaker modes and an automatic feedback destroyer,
each with a single-button interface that gets you optimized
performance in just seconds. And with the integrated
2-channel mixer, you can easily mix multiple sources.
Only SRMs deliver this level of power and sound quality
in such an indestructible, portable package.