H/K sub upgrade suggestions sought

[Mojo88]

2019 with H/K system, it has the stock sub behind the rear Passenger seat. I am getting ready to order parts to replace that sub with a single 10", that will be installed in a custom yet-to-be-selected under-seat box from NetAudio .

I already have the amp. It is shown in pic below, a Kicker 400W CXA400.1. I had it in a Cadillac Escalade EXT that I recently sold. One of the main reasons I am re-using this amp is because it has a 1/8" mini-plug receptacle that is wired to a remote gain control (shown in pic below). This means I can adjust Bass on the fly.

Here's the thing: I listen to ALL kinds of music, even classical sometimes. Contemporary music has plenty of Bass, sometimes too much, so no problems there. But my favorite genre is probably classic rock & roll, most of which seems to have been produced with almost zero Bass or heavy drums. Hence the need for Bass adjustment on the fly.

So my question is: what type of box/sub combo should I get? Ported/sealed, and up-firing or down-firing? I don't need max power, I am looking for the "wall of sound" effect more than sheer noise, if that makes sense.

Thanks for any tips.

 

[canadiankodiak700]

My personal preference for classic rock is definitely a sealed box. You get that nice hard thump not that boomy sound in base that just does not fit with the classic rock or country. Another plus side of it will be you'll end up with a smaller box easier to fit in your vehicle.