The order of getting more/better bass


Say you have a nice 2-way speaker system. Maybe you are starting in your hobby, and maybe you have decided the bottom octaves are a place to improve.  What next? Here's my perspective as a long term audiophile and DIY speaker builder and tinkerer who has lived with and tried a number of solutions.

To be clear: 2 way speakers are generally lot easier to live with than conventional 3-way speakers.  Why? The lack of bass makes them more room friendly and unlikely to cause issues.

So, what should you do? In general, I suggest before moving onto bigger speakers to go through this list:

1 - Get good room treatment, especially bass traps. This doesn't always work, but I have found that often flattening the bass makes smaller speakers sound a lot larger. You may be done here.

2 - Add a subwoofer with great EQ.

And here is where your options kind of explode. The EQ can be before the DAC (miniDSP), built into your pre/integrated (Anthem/Lyngdorf/T+A/etc.) or subwoofer only.  Sometimes this is even part of the speaker with Vandersteen and others offering powered subs with built in EQ as part of the speaker.

To me, the difference here is how much control you want over your DAC and the purity of the signal. A sub only EQ is limited in how much it can fix as well as how much it can break.

I want to point out that not all room correction/auto EQ is the same. It is critically important you audition before purchasing, as ultimately the choices made, and target curves, are not at all equivalent.

3 - Add a second (or more) subwoofer

This is of course great if you lack output, but to actually fix issues you have to have a great deal of flexibility in how you place the subs. If your sub is loud and deep, but you have no control over where they go they will not help you compensate for each other. 
Properly set up/calibrated a satellite/subwoofer set up is glorious. In 90% of living rooms I'd put a good 2way/sub combo up against almost any large floor stander and beat them. However, honestly, the proper set up part is a lot harder than it sounds.

What are your tips for the starter audiophile who wants to improve the bottom end?

Best,

Erik
erik_squires
For the beginner - Don’t get so caught up in the "bass array" hype that you don’t even try a single sub. A single quality sub in the right spot will be significantly better than no sub. Work on the array when you can afford it.
Hi @jsautter ,

Thank you for being constructive, and specific in your criticisms. I especially appreciate how you used your personal experience to explain your difference of opinion and how  you feel your choices made your experience better.
Nothing trollish about that at all.

Best,

Erik
The TAS article is OK but there are a couple of points I disagree with. The first is room size vs woofer size. An 8 inch sub is not going to go very low. It just can not project. Multiple 8 inch drivers may be able to get down to say 30 Hz but still they will not make it down to 18 Hz where the action is. It is those low frequencies that give you a sense of venue size.
In a small room you need at least a single 12" driver or multiple 10 inch drivers. As far as room size is concerned, you can make bass in a telephone booth. It is just hard getting in there with the sub woofer. Yes, larger rooms are easier to deal with but you have to work with what you have and I have heard some seriously good systems in 10 X 15 foot rooms. It is harder to get the bass right but it can be done just not in the short time you have to work with in a "show" situation. Next, a system Q of 0.5 is too dampened. You will never get the impact of really low bass.
I like 0.65. You get detailed bass and super low frequency impact. You get more impact if you go higher but you start losing detail. The home theater subs do this. You can accomplish the same impact and maintain detail by getting a second sub. I use 4 12 inch subs with a system Q of 0.62 (hard to get it perfect). The bass is very detailed and I can make your vision blur with bass drum strikes, the best of both worlds. You also have to be careful to use high powered amplifiers with very high damping factors 500 or higher with subwoofers like this along with very short low gauge wires 8 gauge or lower. Good subwoofer drivers have huge inductive motors and throw a lot back at the amp. 
People who are silly enough to read my posts like cleeds and geoffkait know that I am not crazy about bass traps. I have never seen them work.
Just place the sub is corners and if you can place a third or even fourth sub along the wall wonderful. You have just made yourself an infinite bass line source which will which seriously limits reflected energy to the ceiling and rear wall. The rest can be easily cleaned up with room control.
You might need 6 dB of correction here and there. Nothing crazy. 
Mr Hartley is certainly correct in saying the best bass is expensive. Erik, you make speakers! Sub woofers are easy. There are a gazillion great drivers out there now. I think Dayton makes the best for the money. My personal favorite right now is the Morel TiCw 1258 but it is 3 times as expensive. 1" MDF is not enough. The thickest you can get it is 1.5". I like at least 2" so I laminate two 1" panels together with epoxy (System One).
Glues like Titebond use water as the solvent and can make the MDF swell. You can make a real stiff and heavy enclosure because you don't have to worry about shipping and labor costs! 
Pardon my concentration. The infinite bass line source limits reflected energy from all surfaces except the ceiling and rear wall.