Bass direction is audible

[EJ3]

No, it just shifts the first reflections to the front/back wall, floor or ceiling.

What about downward firing woofers?

 

[prerich]

No, it just shifts the first reflections to the front/back wall, floor or ceiling.

So what happens if the ceiling, corners, and back wall are also treated and you have thick carpet with 1.5 inch carpet "cushion" between the floor and carpet?

 

[Julf]

So what happens if the ceiling, corners, and back wall are also treated and you have thick carpet with 1.5 inch carpet "cushion" between the floor and carpet?

The usual kinds of treatment don't really work very well below 100 Hz.

 

[kemmler3D]

So I just set up stereo subs in my office (snagged a couple of Bic F12s for $250 total, could be worse) ... they're symmetrically placed in the corners along the front wall.

After EQing everything and getting the bass nice and flat at MLP, I put on a test tone and ping-ponged it left to right... I think I lose the ability to tell which way it's coming from around 80hz, and definitely can't under 60hz. I feel like the direction is quite apparent around 100hz and above.

Not blind, not scientific, take it as you will, just a quick casual test, I knew which way it was supposed to be coming from most of the time so I could have imagined the whole thing, etc. etc.

I don't think it really does anything for the stereo image of music, so far haven't noticed anything anyway. That said, I couldn't name any songs with really noticeable stereo bass anyway...

 

[Sokel]

So I just set up stereo subs in my office (snagged a couple of Bic F12s for $250 total, could be worse) ... they're symmetrically placed in the corners along the front wall.

After EQing everything and getting the bass nice and flat at MLP, I put on a test tone and ping-ponged it left to right... I think I lose the ability to tell which way it's coming from around 80hz, and definitely can't under 60hz. I feel like the direction is quite apparent around 100hz and above.

Not blind, not scientific, take it as you will, just a quick casual test, I knew which way it was supposed to be coming from most of the time so I could have imagined the whole thing, etc. etc.

I don't think it really does anything for the stereo image of music, so far haven't noticed anything anyway.

I find much easier to locate subs using very time-limited tones,using normal continuous sines feels like it builds up to the point that can be confusing even at highs if for a long time.
Aggressively low-passed without any hint of going higher than the test needs and short.

 

[kemmler3D]

I find much easier to locate subs using very time-limited tones,using normal continuous sines feels like it builds up to the point that can be confusing even at highs if for a long time.
Aggressively low-passed without any hint of going higher than the test needs and short.

Interesting, just tried it again with "beeps" instead of continuous tones, it definitely made it easier to tell, but if I am honest I definitely can't tell below 50hz even with short tones... I thought I could, but I realized it was just because the volume envelope was too sharp and actually creating higher harmonics / cutting the waveform audibly. When I did a slightly longer fade I couldn't even convince myself I could hear the direction below 50hz if I tried.

 

[Sokel]

Interesting, just tried it again with "beeps" instead of continuous tones, it definitely made it easier to tell, but if I am honest I definitely can't tell below 50hz even with short tones... I thought I could, but I realized it was just because the volume envelope was too sharp and actually creating higher harmonics / cutting the waveform audibly. When I did a slightly longer fade I couldn't even convince myself I could hear the direction below 50hz if I tried.

50Hz is just about right,that's where my limit is too more or less in a decent room.
I see other special signals mentioned but haven't tried them yet.