get at least 3 rca preout for future expandure..and if u choose usb function..choose wisely because got many kind of usb connection..rear,front(ill choose this) or p80rsii kinda usb that u must buy some sort of adapter to make it runnin(usb ready)..

theres a lot of brand that is value for money to choose from,hard to determine which one is good or not..u must keep on researching owner hand on experience..some have good feature but not so user friendly..some have amazing spec but when u use d bt or usb..its very choosy bout d software on ur usb ..(can play some cant play some)..

usually buyer had a dilemma chossing between two..
1..real pure deck that promise u damn good sq wif its copper coating,gold plated rca ,time alligment wide band of tuning but they lack of internal amp ,bt or usb function..and they are not cheap also..

2.the usual that have all d function but sq so so only..but at affordable price..

look at pioneer,clarion,alpine n kenwood lineup..

yes u can use d amp to power front speaker