The woofers are simple. They come out just as you expect they should. They are heavy on the back end, so I'd recommend placing the SVAs flat on their backs for the removal; otherwise, they tend to kick out hard when the bottom is freed.
Once they're out, you can reach the back of the horn from above and below easily, though seeing is a bit difficult. You can always stick a small mirror in there. OR you can wait 'til I get home and I'll pull the horn from my "boner SVA" and show you exactly what it looks like on the back.
My mistake is your good forutne.