You should be comparing PB3000 to other ported Subs.
At tuning frequency, the ported Sub will always be more efficient and have stronger output capabilities.
You can compare data, here:
We reviewed the SVS 3000 series subwoofers which, in many ways, may be their best subwoofer series to date. Read our in-depth review to find out why we like the SVS 3000 series subwoofers so much.
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