mobeious designs are awful. do not waste your money use a quality designer . the guy would not even refund my money.
i had him design me a box for a dd 1510 , the box unloads the woofer before it even produces any response . the woofer plays in his enclosure like its free air . moves air bottoms out sub no bass. i sent the woofer to dd just to see if any woofer problems. turns out if you put the sub in a properly designed enclosure it works flawlessly