Mario is referring to the lead on the right appearing to be hyper-extended already, so if there is a positive signal, it would have to break.
It's all in the angle, I'm sure. This is why we need Virtual Reality now!!
Erik
It's all in the angle, I'm sure. This is why we need Virtual Reality now!!
Erik
Not sure why this one display like that...
Woofer farfield
The woofer dip at around 1.2khz - 1.3khz is real.
Woofer nearfield
I'm not sure what's up with the bump at 750hz. It might be an artifact caused by nearfield measurement OR I did not chamfer enough the inside of the driver cutout OR driver's natural response.
Tweeter farfield
Most of the non flatness is caused by diffraction. Eg : The large dip between 2.5khz and 4khz and the bump 4.5khz and 6khz (most of it goest away if you measure it off axis)
Tweeter vs Woofer relative level
A few notes about the measurements :
- No smoothing (that I can remember of...)
- 60dB scale
- 300hz - 20khz for farfield measurement
- Something like a 4-5ms gate + blended
- 1m distance
- Drive level are obviously not accurate.
Sorry for being sloppy with the measurement but I was in a hurry! 🙁
Although I've the distortion measurements, the graphs are super strech for a reason I don't understand yet. This might be a bug of Omnimic latest version... OR it's my fault! 😉
Chuck
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I've been able to resize the images to make them less stretched.
I don't think the drive level was high enough but still you can have a good idea what they're all about.
- Measurement done at 32 cm
- Around 103-105db (> 91dB @1m if i'm not mistaken).
- 1/48 octave smoothing
- Red (2nd), Purple (3rd), Green (4th), Cyan (5th)
Woofer
Tweeter
I don't think the drive level was high enough but still you can have a good idea what they're all about.
- Measurement done at 32 cm
- Around 103-105db (> 91dB @1m if i'm not mistaken).
- 1/48 octave smoothing
- Red (2nd), Purple (3rd), Green (4th), Cyan (5th)
Woofer
Tweeter
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Not sure why this one display like that...
Woofer farfield
The woofer dip at around 1.2khz - 1.3khz is real.
Woofer nearfield
I'm not sure what's up with the bump at 750hz. It might be an artifact caused by nearfield measurement OR I did not chamfer enough the inside of the driver cutout OR driver's natural response.
Tweeter farfield
Most of the non flatness is caused by diffraction. Eg : The large dip between 2.5khz and 4khz and the bump 4.5khz and 6khz (most of it goest away if you measure it off axis)
Tweeter vs Woofer relative level
A few notes about the measurements :
- No smoothing (that I can remember of...)
- 60dB scale
- 300hz - 20khz for farfield measurement
- Something like a 4-5ms gate + blended
- 1m distance
- Drive level are obviously not accurate.
Sorry for being sloppy with the measurement but I was in a hurry! 🙁
Although I've the distortion measurements, the graphs are super strech for a reason I don't understand yet. This might be a bug of Omnimic latest version... OR it's my fault! 😉
Chuck
Isn't it true that most drivers sound smoother off axis? Maybe besides limiting floor bounce reflections, the old Sonab upfiring designs did this, to ensure off axis sound for everyone.
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