9n Front speaker upgrade?

[hartge]

Hi all,

I have a Alpine 9835r headunit, but want to upgrade the front speakers, is there anything that would work straight off the unit or would I need to run them off an amp? if so id rather get a multi-chanel amp.
Any suggestion from anyone who is running a similar system?

[davey-boi]

Speakers will work but work a hell of a lot better when amped bud

[Joefield]

i upgraded one of my speakers but i blew the other one as it couldnt handle what the new one could take

[paradice]

hi what size is the standard door speakers thanks on a 2002 1.2 polo 9n1