Do you use a Subwoofer when listening to stereo?


I thought using a 12 inch b&w asw 2000 sub would b good to allow my b&w 804 d3’s to better handle freq above 80 hz (ie. benefit from sharing burden).  I am not sure this is prudent as my well powered 804s can probably handle those lower frequencies just fine, and may make them sound better vs cutting them off from flowing thru the 804s.
My Stereo listening is done by streaming thru a nucleus connected via usb to a chord Hugo tt2 and then to a marantz 5014 via coaxial, then to a McIntosh mc255 and then off to speakers referred to above

 Does excluding sub from stereo make sense?
emergingsoul
cakyol:"It is all a personal taste. Some do like it, some do not. I do."

Hello cakyol,

     Overall, I agree with your statement about supplementing the bass of the main speakers in a stereo system and room with subs. For readers of this thread who are considering adding one or more subs to their room or just want to learn more about how to do it well, however, I think it’d be beneficial to elaborate a bit.
     In my opinion, it’s very unfortunate and misleading when those opposed to the use of subs falsely portray the effects of subs as ’boom, boom, boom, one note bass’, ’subs are only good for ht’ and ’subs just draw attention to themselves and are too difficult to integrate well with the main speakers’.
     From my perspective and experience, these types of statements are just very obvious and reliable indicators that the commenter has failed to implement 1 or more subs in their own system, are simply describing the results of their personal unsuccessful sub integration attempts,, are unaware of how to do it well and, therefore, have never experienced the high quality bass performance and seamless integration when 1 or more subs are incorporated in a room and system skillfully.
     My experience is that good bass performance can be achieved, at a single designated listening position, in most rooms utilizing 1 or 2 subs provided the subs are optimally positioned in the room, and in relation to the LP, through the use of the sub crawl, automated room correction or in room electronic measurements. My definition of ’good bass performance’ is bass that is solid, powerful, detailed, tonally accurate and natural along with being well integrated with the main speakers.
     I believe in the axiom, however, that 2 subs perform about twice as well as 1 sub and 4 subs perform about twice as well as 2 subs. The main reason for my belief in this axiom is personal experience with its veracity in my own system and room. I find it amusing that some sub naysayers attempt to discredit this axiom by suggesting the use of 8 or 16 subs, wouldn’t that provide even better bass performance?
     Well, the answer is a definitive yes, in-room bass performance is improved in direct relation to the number of subs being utilized in a given room, according to scientific experiments and research conducted by acoustic experts Dr. Earl Geddes, Dr. Floyd Toole and Todd Welti of Harman International.
     Importantly, this independently verified sub research also discovered that in-room bass performance improved significantly with each sub added up to the threshold of 4 subs and that each sub added beyond 4 only improved bass performance to a smaller and more marginal extent. This research result, along with the fact that there’s a practical limit to the number of subs that individuals will accept in their rooms, are the rationale for the Audio Kinesis Swarm and Debra complete kit DBA systems, along with most custom DBA concept sub systems, typically utilizing 4 subs or less.
     Based on my experience, there are 3 main benefits of adding a 2nd sub to a single sub system: 1. The overall system bass power and bass dynamics capacities are increased, since bass is cumulative in a room and the number of subs has been doubled, which results in the bass being more capable of faithfully reproducing whatever the bass demands of the source material may be. 2. Bass distortion is reduced, since each sub is operating at a reduced level and well within its limits. 3. The other general benefits of utilizing multiple subs in a room also begin to take effect and become noticeable with the use of 2 subs. Qualities such as increased bass smoothness, speed, detail, sense of ease, improved stereo sound stage illusion and better integration with the main speakers.
     When I began using 4 subs in my room, I experienced further enhancements to all the 2 sub benefits mentioned earlier along with an immersive quality to the bass and an absolutely seamless integration of the improved bass with my main speakers.

Tim
I thought I wanted more bass in my stereo room so I grabbed the dolly and rolled my old mirage with 2 opposite side firing 12” woofers, set it between the two speakers and ran a sweep. Amazing, reasonably flat response to 20 hz. I didn’t care for the way the hvac ducts were rattling and tbh getting a stereo pair set for room gain, or when the bass is locked in 45 hz is great for 90 % of the music I play. Subs in my truck are another story.
@ Emergingsoul 

Hello It's a matter of preference I think it depends on the speakers your powering and the type of music your listening to also. I am using a set of large speakers that don't need a sub there set to full range and 2 channel is the way to go for me some others may not agree but it's what you prefer. I like to know that I can have concert level sound with just 2  good full range speakers and leave the bells and whistles off. Have a great day!

Atmasphere, I am going to disagree on this one. My experience is different but I think I might go about it differently than most. Up at the crossover point I am just listening and I do not want to hear it. The subwoofers should just disappear(remember I use a crossover point of 125 Hz). It has to sound like I am listening to one speaker. As I evaluate lower down I go from listening to feeling. Do I feel that kick drum the way I do at the club. Are those low synthesizer notes shaking me the way they should. Does the room move under low organ pedal. Hearing is one thing feeling is another. Part of the thrill of live music are the visceral sensations you get.
These sensations are missing or greatly attenuated in most home systems. I started playing around with subwoofers in 1978 for this very reason. I wanted to feel as if I were at a live performance. Again, I can now move a subwoofer 15 feet just by delaying it 15 msec. I can change crossover points and slopes on the fly at one Hz increments 2nd to 10th order. You can hear these changes immediately. It is easy to demonstrate that with everything aligned perfectly those visceral sensations come through in spades any movement away causes instant deterioration in those sensations up to completely obliterating them.
Dukes instructions represent a reasonable way to set up his system without expensive test equipment. You can purchase his system for a very reasonable price commensurate with what most of us have to spend on a system. Brilliant. Using modern resources you can however go beyond this. You just have to be willing to put in the time and money.  
drlisz, the type of music has nothing to do with this unless you only listen to string quartets. A good system will play anything equally well. If it can't it is not a good system.