The pursuit of bass...


Most people would probably say that the most important thing for a speaker to get right is the midrange and I'd have to go along with this myself. If the midrange is too shouty or too recessed or just tonally inaccurate, the other qualities of the speakers are pretty much pointless regardless of how great those qualities might be.

However, with that said, I do not think that the midrange is the most challenging part of a speaker to get right. In my opinion, that award goes to the bass frequencies. Sometimes I listen to a speaker and it is indeed the midrange or treble that is holding back the sound quality, but far more often, for me, it's the low frequencies. I find that I’m more forgiving of midrange flaws. Midrange flaws don’t impact my musical enjoyment as much as bass flaws.

Now, of course, the bass is also the most vulnerable to room acoustics which just exacerbates the problem. But, mostly I blame the speakers themselves. Many fine speaker manufacturers simply ignore the problem by rolling off the bass early. I won't name any specific brands to avoid a flame war, but this is very common. Often I will see specs for frequency response that indicates -6db at 50hz. This is typically very unsatisfying bass. Also, many speakers are not balanced properly across the frequency spectrum so that while they might dig down to 35hz or 40hz, they don't sound like it because the bass is always underwhelming compared to the volume level of the midrange and high frequencies.

The speakers that do attempt to reproduce good solid 40hz bass, often still sound quite bad when reproducing those frequencies. And I'm not talking about pipe organ bass here, I'm talking about the 35hz to 55hz range. Unfortunately, really good minimontors that are amazing with 60hz up, really are missing out on a lot of the presence and atmosphere created by those low frequencies. Emotionally connecting to the music and suspending disbelief is easier with quality bass reproduction. For some reason many audiophiles are willing to live without it. I can understand this since pursing quality bass can be a frustrating endeavor. Also there is cost to consider. Good bass typically comes from bigger speakers and is therefore considerably more costly. But even the best mini-monitors usually commit the sin of omission in the low frequencies.
jaxwired
Just as a follow-up to my own question, I just received the latest issue of TAS which has a review on a DSP device for subs called the DSPeaker. Based on similar technology being used in subs that have integrated DSP feedback devices, like Velodyne, it is a $350 black box for use with subwoofers without that option. Anyway, the article directly addresses the common problem I'm having of a suckout caused my room modes in the lower regions below 100hz, and then between 100-200hz. The concept of electronic mode correction is suggested as having potential benefit to this problem. The author does report major success with this particular device (not applicable to my particular arrangement as my subs are integral and not standalone), as with the more expensive PARC device. Duke, the author, Robert E. Greene, does mention in passing how effective the potential of your Swarm system might be, towards the end of that article.

On a further note and query, I've just borrowed a better mic to do a bit more in-depth analysis on my laptop (otherwise was relying on the mic in my iPhone and StudioSix software). Can anyone recommend good RTA FFT software for Mac that is freeware or that doesn't cost an arm and a leg?
Hi Jax, is there a link to the article? Or is this an article you can post a copy of?

Bob
Bob - Since it's in this month's TAS you'd have to be a subscriber to the online edition to read the article. I am not. I just got the issue in the mail yesterday, so it should be on newsstands and in libraries shortly. I imagine in a month or two it might be available at no cost online - I'm not sure how that works. Obviously it is copyright protected material so don't think they'd appreciate anyone posting it at this point in time.