sealed vs ported SVS PB3000

[Sky1]

I ran a scan with the subs in Sealed mode vs Ported.
Seemed they went down lower in Sealed mode, is that from Room Gain but why only when sealed?

 

[shadyJ]

Sealed should have a little bit more output under the system tuning of around 17Hz, but not that much. It seems you are getting an extraordinary amount of room gain.

 

[Sky1]

Sealed should have a little bit more output under the system tuning of around 17Hz, but not that much. It seems you are getting an extraordinary amount of room gain.

yup, but it seems I get that only when in Sealed mode but don't hear or feel it.

 

[shadyJ]

That deep bass stuff might be an artifact of a mic error and may not really be how that subwoofer is behaving. There are a lot goofy things that can happen with mics, especially at frequency extremes such as extreme deep bass or extremely high treble. If you wanted to be sure that it really exists, take a bunch of measurements all around the room to see where it is happening. It's also possible there is a mic defect.

 

[j_garcia]

There's a correction chart for various mics which could explain the tones in the bottom octave.

It also may go that low but it does not have the same tactile feel as a vented sub. I noticed this when I went from my vented to a sealed sub.

 

[William Lemmerhirt]

It does seem like an anomaly of some kind. I do find it interesting that they both have the same peaks and null. 12, 15, and 20ish.

 

[Sky1]

Was using the UMIK1 with the calibration file