Newbie with system setup q's

[bill4205]

Okay , so here is my newbie question... please have mercy! //content.invisioncic.com/y282845/emoticons/smile.gif.1ebc41e1811405b213edfc4622c41e27.gif

I have an Alpine CDA-7894 HU, and I am buying 6.5" components for the front (e.g. Polk db6500) and some 6.5" Coax for the rear. I was planning on using the HU to power the components - do you think this would work, or would an amp be necessary?

That leads me to my next question... if I use the HU to power the components, I as thinking of eventually getting a mono sub amp to run a 10 (Image Dynamics IDQ) to give me some low end. How much of a sub amp would I need in this situation?

OR, I could eventually buy a reasonable 5-channel amp to power the system... (who makes a decent 5-ch amp these days? I am not looking for anything huge, just enough to give me a decent qualuty sound for my XM...)

Thanks for helping this old man out!

Bill

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[Max_Power 10+ year member]

an amp will always make a difference with components. something like 50 - 70 RMS is ideal. (however it isn't required)

like this

http://www.crutchfield.com/S-HzWrQv7uhnN/cgi-bin/ProdView.asp?search=Profile+VENDORID489&searchdisplay=Profile&i=489AP740

for the sub, I would suggest anything around 100-300 watts (providing you get a dual 4 ohm version wired down to 2 ohms).

like this

http://www.crutchfield.com/S-HzWrQv7uhnN/cgi-bin/ProdView.asp?search=Profile+VENDORID489&searchdisplay=Profile&i=489AP700M

I really wouldn't get a 5-channel amp, because if you get to happy with the sub, and melt the subwoofer channel portion, your amp will be cripled. this way you can change-out or replce amps easier. 5 channel amps are usually more expensive, and bigger in size.