Which one is better, Manlon M8518 or Philips SD80?

The two outdoor karaoke speakers are good, but there are also very different such as the two speakers of the bass speaker is completely different, Mannon's bass speaker is an 18-inch speakers, and Philips bass speaker is three 8-inch speakers, this is not the same in the design, in the bass is of course, the larger the speaker the better the effect, even if it is three eight-inch speakers in parallel can not compare to an eighteen-inch speakers, so by the effect I would choose Mannon speakers, if I want to choose the brand, I will choose Philips speakers. So according to the effect I would choose Mannon speakers, if it is to choose the brand I would choose Philips speakers, in fact, the price of these two speakers is about the same, the volume to be much worse, is definitely 18 inches of Mannon volume to be a lot bigger, if you do not want to buy too big speakers that would be chosen Philips, and finally look at your own how to choose.