running two JL w3v3's i had them in a ported box running a JL 1000/1. when i moved them to a new box (sealed) that fits under my backseat i had to change my amp eq and still ended up blowing them. now with new w3's i dont want to blow them so im running my old JL 500/1 and is doing fine but think i should be able to get more out of them. is it possible to run the 1000/1 with a sealed enclosure or is it just overkill for the w3s?
You can run 1,000 rms to the two 10w3's but you'll need to make sure they're seeing right at 1k rms and no more. If the gain is set correctly, you normally won't be playing your system at full tilt so on average the subs should be seeing less than 1k rms. Just keep in mind that any attributes on the head unit can increase signal going to the amp which will change the gain setting accordingly.
Every once in a while reach back and check and see if the dustcap is warm (where it says JL on the cone). If ithe cap feels warm you are heating up the voice coils and you need to turn the volume down. Thats what I would do to get a feel for how much and how long you can listen to it loud.