Hey guys and gals, I have just purchased two sets of speakers for my 32gtr: Pioneer ts-d1602r 2ways 6.5 inch in the back and pioneer ts-c171prs splits 6.5 inch in the front. Now, I'm not a huge stereo guy and just want good sound and clarity. I don't need somethin that is going to set off alarms :-). So my first question is will these speakers do the job, or do I also need a small sub? Second question is would it be worth my while to get an amp to run these speakers on there own? I'm keeping in mind weight. Thanks.