transducer never even thought off that.
looking at the thing it makes sense, now way an 8 inch suby could fit in there.
The chair adds good bass and high frequency to my PC sound,, which is a an old pioneer stereo with 2x33Watt speaker units.
really noticeable and even more when being sat on.
In the car i didnt notice much in added bass or db levels.
tested with car stereo low + chair high AND car stereo high and chair low.
The 2 speakers at the top provided more sound then i could here from the bass speaker.
I recorded a movie with the chair in and running at an equal level to the car stereo, PM and i can send you the file.
I would prefer a high quality car stereo with a subwoofer or 2 in my car.
Like i said i won this chair and felt like trying it in the car. If i connected it up and installed the chair as a passenger seat then i believe it would be better than a stereo system.