howdomagnetswork
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- Nov 26, 2022
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Hello everyone.
This topic goes into what I perceive as relative semantics when applied to a medium-sized room setting (vs. critical live event speaker time aligning) but I have a burning curiousity. I have a new sub using one of the typical settings: DAC interface -> sub -> studio monitors. My previous subwoofer had a forward-facing speaker with a port at the front. My new sub is downward firing with a port up front.
1) Would it be safe to assume, in an open space (or with no room boundaries present), that a forward-facing + port subwoofer moved 2"-4" forward/backward could introduce time alignment issues in terms of hearing mid-higher frequencies first and bass too late? This is also assuming somehow phase between all 3 sources would be remain equal (I'm still a newbie in understanding how bass waves propagate).
- From looking at the side, my first subwoofer cone was about 2" ahead of my monitors.
2) Now, my new setup has a downward firing cone but ported up front. We all know bass frequencies are perceptually omni-directional but still are a source point of sound. Where does max spl happen/originate, at speaker or at port? Or is port just a function to achieve higher levels? Based on that, should my subwoofer be now placed more closer to me/in front of monitors due to dimension changes?
3) I'll have to go on REW to test, but given if there are delays in sub bass response (20hz-80hz) (to your ears) dependant on positioning, wouldn't it make sense to place subwoofer at a corner of the front wall within a room so while you get build up of bass, bass reverberation/delays you hear should be reduced?
On top of my head this sounds trivial, but for personal reasons, I would love to learn about this. Thank you.
This topic goes into what I perceive as relative semantics when applied to a medium-sized room setting (vs. critical live event speaker time aligning) but I have a burning curiousity. I have a new sub using one of the typical settings: DAC interface -> sub -> studio monitors. My previous subwoofer had a forward-facing speaker with a port at the front. My new sub is downward firing with a port up front.
1) Would it be safe to assume, in an open space (or with no room boundaries present), that a forward-facing + port subwoofer moved 2"-4" forward/backward could introduce time alignment issues in terms of hearing mid-higher frequencies first and bass too late? This is also assuming somehow phase between all 3 sources would be remain equal (I'm still a newbie in understanding how bass waves propagate).
- From looking at the side, my first subwoofer cone was about 2" ahead of my monitors.
2) Now, my new setup has a downward firing cone but ported up front. We all know bass frequencies are perceptually omni-directional but still are a source point of sound. Where does max spl happen/originate, at speaker or at port? Or is port just a function to achieve higher levels? Based on that, should my subwoofer be now placed more closer to me/in front of monitors due to dimension changes?
3) I'll have to go on REW to test, but given if there are delays in sub bass response (20hz-80hz) (to your ears) dependant on positioning, wouldn't it make sense to place subwoofer at a corner of the front wall within a room so while you get build up of bass, bass reverberation/delays you hear should be reduced?
On top of my head this sounds trivial, but for personal reasons, I would love to learn about this. Thank you.