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First of all the response from the different drivers and the port should combine perfectly to provide a flat frequency and linear phase response. The cross-over between the port and the woofer needs to be carefully adjusted and this lacks in many bass-reflex loudspeakers.
Then our AOI system ensures that the woofer membrane accelerates fast and stops fast with perfect accuracy and without any sound coloration.
It is easy to create lots of bass but this need to be accurate just like higher frequencies. Many classical music enthusiast and professionals have chosen PSI Audio because it accurately reproduces instruments all the way down to their lowest frequencies. And they know what the bass should sound like.
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