I personally would be attacking the front speakers. I would put in a little bit of sound deadening, I would make a larger speaker fit into the door. The latter part would involve you meeting up with a capable installer if this is beyond your abilities. Installation in this case is what will make this work for you. Get as large a speaker as you can fit into that door location. If the vehicle is a sedan type (assuming it is), then a larger speaker in the rear location is more than likely going to feed you with the increase in sound that you are looking for. If it is just sound you want, do the rears. If it is better quality of sound you are after, attack the front.

 

RMS ratings are published in the manual. THE LARGE PRINT GIVETH, THE SMALL PRINT TAKETH AWAY.
A brand name 50 watt deck produces 22 watts.
Your factory speakers could have been a ohm load.

 

What it sounds like to me is that there's likely too much bass going to the speakers. Check for a High Pass filter (HPF) on the deck. If there isn't one of these pick up some "bass blockers" from any store. Usually about 10 bucks a pair. This will likely help quite a bit.

 

does your blaupunk unit have pre-out puts? is it 8 pin din?
I would try connecting an amp to your pre outs,,, if it is din you need a din to rca connector

cheers

randy

 

Does anyone else think the HU may be at fault here?
Cranking to 50/80 while not driving just doesn't sound right to me.

 

i had 3 inch stock speakers in my pontiac in the front dash. they don't sound like much (and there's not much bass of course) but they still went plenty loud enough to cover road noise

i think there's something more then just expecting too much

testing the speakers open air won't yield much in the way of sound, maybe you could run a seperate wire to just one of the speakers (this eliminates any possible phase mix up)