Hi, I am new to bass playing. I have been taking lessons and when I practice at home its been very quietly through my guitar combo. I have a fender p-bass 4 string. I just got a 210 cab for the bass and now need a head. Its an 8ohm 200w rms 400w peak cab. Any suggestions on a head? What size do I even need? I went to the local store but the sales guy showed me there enter level stuff and I wasn't really impressed, and then the price jump to $1000. I may have to buy online, unheard.