MengW
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The large loudspeaker is 15 inches, the small loudspeaker is 8 inches, and they have the good performance to play the 80Hz with -0dB.
And the listen distance and listening position SPL sound level and the position is same.
What is the difference to play the 80Hz SINE signal when the listening position is 80dBz SPL?
--
I found out these answers,
1. The size of the large speaker is harder to layout and more limited in the small room, more SBIR problem?
BUT, the size of some 14 or 15 inches loudspeaker (w371, 14 inches, 0.4x0.4m) is not too bigger than some big size 8 inches (Quested V2108 0.34x0.365m).
2. The directivity performance of the 15 inches loudspeaker is better.
If at the 500Hz, YES, the 15 inches directivity is better. https://aaltodoc.aalto.fi/bitstream...Kantamaa_Olli_2020.pdf?sequence=2&isAllowed=y
BUT, if at the 80Hz, if the listen distance is about 2.5 meter, the directivity performance of the 95% large loudspeaker is close to the small loudspeaker, right?
3. Large speaker is closer to SURFACE sound sources, and small speakers are closer to POINT sources.
BUT, if the listen distance is about 2.5 meter, the difference is small, right?
4. The group delay, distortion, timbre of large speaker is better to play the low frequency music.
BUT, if only to play the 80HZ SINE signal, there is no quality to feel?
5. The X max is different.
BUT, if the small speaker is not cheap and have good drive performance, to play the 80Hz sine signal should be well, right?
--
IF the low frequency absorption performance of the room is good, for example, the 50Hz decay -15dB in 50ms, 50Hz decay -25dB in 100ms, T30/Topt value of 50Hz is about 350ms.
IF the listen distance is same, for example 2.5 meter,
Why can't I use small speakers in a large room?
Why can't I use large speakers in a small room?
--
May I compare speakers to electric fans?
Even if the air volume is the same, is the feeling of a big fan and a small fan different?
--
Does a large room require more power or energy to fill?
Play the 80Hz SINE signal, if the listening position sound level is 80 dBZ SPL, is the energy power radiated from the big speaker to the room close to the small speaker?
BUT, no matter how loud the sound of the mobile phone is, does it seem that it can't give the feeling of filling a large room?
--
Although I have learned some opinions on this issue, but I'm still confused.
Thanks a lot.
And the listen distance and listening position SPL sound level and the position is same.
What is the difference to play the 80Hz SINE signal when the listening position is 80dBz SPL?
--
I found out these answers,
1. The size of the large speaker is harder to layout and more limited in the small room, more SBIR problem?
BUT, the size of some 14 or 15 inches loudspeaker (w371, 14 inches, 0.4x0.4m) is not too bigger than some big size 8 inches (Quested V2108 0.34x0.365m).
2. The directivity performance of the 15 inches loudspeaker is better.
If at the 500Hz, YES, the 15 inches directivity is better. https://aaltodoc.aalto.fi/bitstream...Kantamaa_Olli_2020.pdf?sequence=2&isAllowed=y
BUT, if at the 80Hz, if the listen distance is about 2.5 meter, the directivity performance of the 95% large loudspeaker is close to the small loudspeaker, right?
3. Large speaker is closer to SURFACE sound sources, and small speakers are closer to POINT sources.
BUT, if the listen distance is about 2.5 meter, the difference is small, right?
4. The group delay, distortion, timbre of large speaker is better to play the low frequency music.
BUT, if only to play the 80HZ SINE signal, there is no quality to feel?
5. The X max is different.
BUT, if the small speaker is not cheap and have good drive performance, to play the 80Hz sine signal should be well, right?
--
IF the low frequency absorption performance of the room is good, for example, the 50Hz decay -15dB in 50ms, 50Hz decay -25dB in 100ms, T30/Topt value of 50Hz is about 350ms.
IF the listen distance is same, for example 2.5 meter,
Why can't I use small speakers in a large room?
Why can't I use large speakers in a small room?
--
May I compare speakers to electric fans?
Even if the air volume is the same, is the feeling of a big fan and a small fan different?
--
Does a large room require more power or energy to fill?
Play the 80Hz SINE signal, if the listening position sound level is 80 dBZ SPL, is the energy power radiated from the big speaker to the room close to the small speaker?
BUT, no matter how loud the sound of the mobile phone is, does it seem that it can't give the feeling of filling a large room?
--
Although I have learned some opinions on this issue, but I'm still confused.
Thanks a lot.
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