I have a Passport 150 and can partly agree with the above comments. For the price there are better sounding solutions. But it is extremely portable! And if you know how to handle the built in equilizer and how to place the speakers, you are able to get a quite descent sound out of it.
It is possible to get a rather smoothe and well balanced sound with good output. (Parties and smaller clubs up to about 100 people.) But the low end IS weak. No real punch there!
It took me a few frustrating bad sounding evenings out before I got it all right. Itīs no hifi, but it works!
Regards, Michael