Upgrading seat leon audio

The link from above is the speakers I used http://www.ebay.co.uk/itm/380839973570?_trksid=p2060778.m1438.l2649

The adaptors I used were http://www.ebay.co.uk/itm/SAK-3103-...1?pt=UK_In_Car_Technology&hash=item231c21cc1f

even though it says up to 2006, my car is 2010, as outlined in the FAQ
http://www.seatcupra.net/forums/showthread.php?t=123171
some cutting was required

cheers for that
what do you reckon for these in the back doors
http://www.ebay.co.uk/itm/Vibe-Blac...0?pt=UK_In_Car_Technology&hash=item5d469424e4

seen these also for the supposed extra bass
http://www.ebay.co.uk/itm/371006441530?_trksid=p2060778.m1438.l2649&ssPageName=STRK:MEBIDX:IT

I'm afraid I don't know the pros and cons of those compared to Kenwood

Wondering whether anyone could be of assistance...
I'm looking at some replacement door speakers that are dimensioned at 6.2cm deep, will they fit?

also, they have a quoted 600W max rating (for each speaker) but the max output on HU I'm interested in buying says 50W x 4 channels. What would i need to do in order to get the best outcome?

cannot post URL's yet as not enough posts

Thanks

600 Watt Max? You need to look at the rms figure of the speakers. That's the real value to work with

Will have to contact the manufacturer to get the rms value, as the website itself does not say!
An online RMS calculator gave an answer of 424W - obviously not sure how reliable this info is so will wait for a reply from the manufacturer

Ignore the wattage of speakers, go by the RMS which means its performance at a constant setting. Wattage just means how loud it can go before blowing up. Higher the RMS the better the performance, which means probably spending £150 plus. And most Aftermarket speakers will need a adaptor for the doors to mount the speaker further out, otherwise it'll sit deep in the door and may hit components. Some speakers are made specially for the Leon but you're limited to Brand and performance.