have you heard of any bad ones?
Rival904 on here had an 8 15" box tyhat was a pwk design .. couldnt break a 150. a few others have had bad experiences, but mine and jeffs experience with them has been ok. sounded good and did decent numbers from his setup.
More info? Vehicle? Subs? Peak?
He could of designed a box to have great low end, and the car had a high peak, therefore a bad number.
But if it was build with metering in mind, this is less than par.