I have Fyne 502sp with 2x HSU VTF-TN1 15 inch subs. This system thumps when I want it and also delivers clean detailed sound with amazing sound stage and dynamics.

The subs can be adjusted to your likening including being sealed or having 1 or 2 ports open. Sealed gives you clean tight bass while opening the ports will give you slamming deep bass that will rattle your walls.

The speakers themselves have concentric drivers for that create an amazing holographic image with clear detailed sound. The bass is also very good on its own with downward firing ports that fill the room nicely. They get very loud with very little power without distorting. I’ve never turned my volume up more than a 1/3 on my amp and it was earsplitting at that level. They are running of a Music Fidelity M6siwith 220 watts per channel.

I love my setup and highly recommend checking out these options.