I just purchased 2 10" references and I want to temporarily run them in a box I have until my custom boxes are done. The box I have has 1.25 cubes per woofer, sealed, and the recomended size is .75 cubes. I was wondering how much the RMS will be affected by the big box. I have heard these subs are power sensitive and I do not want to blow them. The RMS is 250w.