Do I really need sub control feature?

I have an 8" sub mounted between the 2 seats (2 seater).   2  fosgate 5 1/4" in doors with separate tweeters.   I'm shopping for an HU and amp on a budget.   The guy at the car audio store says I need to get an HU with sub control.   I see his point, especially with the sub so close to the ears.  However, couldn't this control be accomplished with the fade function on a normal (ie:  cheaper) HU?   There seems to be quite a difference in price to get the sub control feature.   Also,  I thought I needed a 4 channel amp to power this system - one channel for each door speaker and bridge the other two channels for the sub, with the tweeters running straight off the HU.  Anyway, my friend says I only need a 2 channel amp.   Any advice about making do with a 2 channel and an HU with no sub control?

the sub control all depends on your taste, but i would reccomend something to cut the bass off just incase the po-po's run out of other people to chase.

 about the amps, its up to you if the money isnt an issue get a 4 channel for the tweeters and mids and a mono block amp for the sub. if money is an issue i would suggest funning the tweeters and mid off the h/u with a mono block for the sub, you will need to add capisitors to the tweeters as not to blow them with low frequencies

Only if you don't want your sub to play all of the time you would need a bass control. If you are going to use a mono amp for the sub you can just add a toggle switch to cut the amp on and off at your leisure. Since you are using one sub I would recommend a small mono block amp and a good head-unit that will fit in your budget. You can run the 5 1/4's off of the head unit and the sub off of the amp this should give you a nice sound and keep you with in your budget.

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