hey people. I am new to this so I want to start by asking some questions. I want to know what are ohms and what are they used for. Also whats the difference between a working mans three hundred, and an swr 350. the 350 only has 50 more watts but its twice as expensive. I like low end and I play through a swr WM 300. I get a lot of "speaker fart" how can I cure this problem. More watts maybe??