bstatmeister:
"
I really only have 1 place it could fit while still having acceptable WAF - in the corner of the room just to the right of the right main. Hopefully, that position will suffice."
Hello bstatmeister,
Placing a sub in a corner position usually results in a perceived bass boost in the room due to the close proximity of the 2 walls there that bass sound waves can reflect off.
The sub crawl is definitely the best method of attaining good bass response at your listening seat when utilizing only a single sub and room positioning options aren't so restricted.
I'd suggest positioning the sub as many inches as possible away from directly in the corner, given your limited space, will be less of a bass performance compromise. You should be able to clearly notice that the bass will sound more natural and accurate in 1 of the 2 positions.
lordrootman:
"
Your best bet to archive deep clean bass is missing subs together from 2-4 brand
im using SVS PC13 ultra with two klipsch SW-115
way better than using only one brand
also use both red and white outputs with Y adaptor don’t use only LFE."
Hello lordrootman,
While there are no reasons mixing different sub brands or even sub types would be detrimental, there are also no reasons I'm aware of that mixing sub brands or even types would be beneficial. Perhaps lordrootman could elaborate and enlighten us.
mijostyn:
"
For all you people planning subs on a limited budget just buy the first one and add another when you can. For point source speakers 2 subs will get you 90% there. For you panel jockeys, Magnapans and electrostats you are going to have to shoot for 4."
Hello mijostyn,
I think your idea, for people planning subs on a limited budget to just buy the first one and add another when they can, is a very good one.
I believe a good approach would be buying the Dayton SA1000 1K watt class AB sub amp for about $300 and buying or building a single passive sub with a 10" or 12" aluminum long-throw driver, in a stiff cabinet that is either sealed or ported with plugs for optional sealing and about a 1sqft footprint. This bass system could then be improved upon by adding up to 3 more subs as their budget allowed over time.
However, I disagree with your statement that using 2 subs with point source speakers will get you 90% of the bass response performance of using 4 subs in a dba system. If we agree with Duke's statement that 2 subs in a room provides twice the bass smoothness of 1 sub and 4 subs in a room provides twice the bass smoothness of 2 subs, this would mathematically result in an accurate statement being that "using 2 subs with point source speakers will get you 50% of the bass response performance of using 4 subs in a dba system, not 90%.
I also agree with your statement of "
For you panel jockeys, Magnapans and electrostats you are going to have to shoot for 4." Planar magnetic speakers like Magnepans and electrostatic speakers like Martin Logans and Sound Labs are considered fast speakers that are notoriously difficult to seamlessly match subs with. Single or dual subs, especially those with 12 or 15 inch drivers, are just not capable of matching the speed of these fast speakers and, as a result, the bass seems to lag behind, be poorly integrated and sound disconnected to the fast and nimble qualities these speakers consistently display. My experiences using Magnepan panels with the AK Debra dba system with 4 faster and more nimble 10" driver subs, is that there's a very seamless and quality to the reproduced sound that just seems like a very well integrated whole.
mijostyn:
"IMH experience the best performance comes from sealed, enclosed 12" subs Q @ 7 with Room control and a high powered class AB amp damping > 500, the higher the better. The only difficult variable is the enclosure itself which ideally should be infinitely stiff and heavy."
I agree with you in general but I know excellent performance can also come from 4 ported 10" subs powered by a high powered class AB or class D amp with a damping factor >500. The Debra/Swarm sub enclosures are very stiff and reasonably heavy.
From my perspective, the primary reason for the sota in-room bass response performance achieved through the use of dbas is still the fact that there are 4 fast and nimble subs producing bass sound waves from strategically varied positions in the room.
There are other important factors but having 4 well distributed sources of bass in any room is the crucial ingredient in creating this delicious psycho-acoustical cake.
Tim
