I just built a seventeen cubic ft box with a crown XTI-2000 amp with an Onkyo 605 receiver , the wiring is 8 ohms bridged and I am getting some kind of fluttering sound from the speaker at both low and high volumes.:wits-end: It doesn't play loud and my port may be too close to the driver but the fluttering sounds like it is coming from the speaker. Could it be that the speaker is bad(speaker has never been hooked up before, first time using it). Should I be running it in 2 ohms into channel one instead of 8 ohms bridged? Any ideas???