I am hoping that someone would be able to offer some insight into a
speaker configuration problem I'm having. I have built an mp3 jukebox
and have installed 3 full range speakers into the cabinet (full range
so I didn't have to bother with cross over networks).

My amp delivers 70watts into 4Ohms, my speaker configuration consists
of 2 x 50watt 8 Ohms speakers in one parallel leg(giving me 4 Ohms)
and 1 80watt 4Ohms speaker in series with the parallel leg. So 2 x
4Ohms in series gives me 8Ohms. This ofcourse should mean my amp will
deliver only half its stated output (therefore, should be delivering
35watts). My problem is the lager 4Ohms 80watt speaker that is in
series with the parallel leg has burn't out. I have no idea why.

----8Ohms---- (50watts)
| |
| |
----8Ohms---- (50watts)
| |
| -------4Ohms------- (80watts)
| |

I read a similar reply recently that stated maybe its because the
wattage is unbalanced or the number of speakers were unbalanced,
resulting in the 4Ohms 80watt speaker doing double the work.

Please help if you can, any insight into this problem would be greatly
appreciated, its driving me nuts..

Thanks in advance Steve