These are just my opinions and are only opinions... I think the subwoofer name brand and models matter the least out of all the building blocks of the "Sound Quality" subwoofer section. My opinions are that, in this order, the enclosure materials are paramount, enclosure design follows next, the amplifier fits in here, then the subwoofer wraps it up. Of course it will all sound like garbage if you use the best materials you can get your hands on and the best designed enclosure to fit your ride with the best amplifier powering your mean ass sub(s).... if you feed it a low quality, crap bit rate recording.
Pretty much you can buy whatever subwoofer(s) you are attracted to and can afford. Once you have the sub(s) and the parameters you can focus on the more important things... the list above. If you want it to be clean and sound as good as it can... be anal about the build and be realistic about the expectations of the subwoofer(s). Realistically, 2 - 3 - 4... subwoofers are going to be LOUD which can actually drown out the rest of your speakers. This can make a would be great SQ system sound like crap because there is just too much bass. So if you want to know how many subs you need or want, look to your mids and highs first... how much power are they getting, how loud are they. Try a few subwoofer test boxes to see what blends with your mids and highs... 1 sub... 2 or 3 subs. A pain in the butt I know but it will let you know how many is too much or too little.
My home audio system uses a single Yamaha 8" active servo subwoofer. It shakes my whole house with "75w" of power. My Jeep uses a single 10" RF Punch P3 subwoofer with about and estimated and somewhat approximate 600w ish of power and can be heard and felt from a good distance outside of the Jeep but it blends well at REASONABLE sound levels with the mids and highs which are getting near 120w per front door and 80 - 90w per rear door though the rear doors are attenuated to a much lower volume. My point is... Be realistic about what you want, no need to impress anyone but you, make sure what you get will blend with the rest of the system and not over or under power it. It's more about execution than equipment.