Question for you fellows that are familiar with the SI-18 subwoofers.
I have one SI-18 up and running and another one almost done. The box is 22x22x22 outside dimension, Internal dimension is 20.5x20.5x20.5. Which yeilds about 4.9 cuft, not accounting for the driver and bracing. I stuffed the box with approximately 3 pillows worth of polyfill.
If I go off of SI's information, I should be right around 6cuft which is optimal for this subwoofer.
I'm powering it with one channel of an EP2500, at 4 ohm.
I've gotten about 6-8hrs of playing time on the subwoofer now. I don't know how to describe it, but the sound is kind of "dry" to me. The bass is not "warm" and deep like I'm use to with my old SVS. The output is deffinately more than the SVS, and is tight and accurate, which I like.
I'm thinking I may need to add or remove some of the polyfill. Am I on the right track or does the subwoofer need some break-in time?
I've tried switching amps, and that didn't help much.
Any input is appreciated. I don't want to have to cary the subwoofer out and take it apart multiple times. The thing is heavy, and moving it by myself is not an option....