I just bought the QSC K12 speakers and were very impressed with the quality of sound. I used to used the Mackie SRM450 and now I switched because I was having issues with the Mackies. The QSC sounds crisp and very clear. The bass is impressive and loud for a compact speaker. It is slightly smaller than the SRM450 but very powerful. Don’t get me wrong the SRM450 are very good and I used them for over three years and I definitely got my money’s worth. The QSC has a built in fan that cools the speaker and keeps it from overheating. It has multiple outputs in the back panel that also allows you to hook up RCA cables to it. This is very convenient for wedding reception’s cocktail hour for hooking up a laptop to it or an Ipod. So far, I would recommend the QSC K12 speakers. I think it is worth the extra money and they look great.
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