Is it worth to run this without an external amp???

[Anthony21893]

I was considering purchasing this headunit: PIONEER 2DIN 7" DVD USB BT http://www.jbhifi.com.au/car-sound-gps-navigation/av-navigation/pioneer/2din-7-inch-dvd-usb-bt-sku-90101/
but it only has one rca and i will be using it for my jl audio sub. Just wondering since i dont haven another rca for another amp for after market speakers is it worth running these jl audio ones (http://www.jbhifi.com.au/car-sound-gps-navigation/speakers/jl-audio/6-inch-speakers-sku-1077/) with out an amp? Since they are really only 50 watts rms?
please help me out

Or should i just stick with my already headunit the Kenwood KDCU553BT http://www.jbhifi.com.au/car-sound-gps-navigation/mp3-cd-tuners/kenwood/200-watt-cd-mp3-tuner-with-usb-sku-93553/ with more rca?

[B18cEG]

Those speakers aren't really in need of amplifying but in saying that, nearly every speak sounds better amplified and high passed, even standard speakers. In my experience (over 9 years in the industry) your much better off starting with a good head unit that way if you do want to add and amplifier or 3 later you can use the correct head unit outputs with the correct output settings.