Hi,
The raw data with corrected ER and PIR:
Score no EQ:
With Sub:
Spinorama with no EQ:
- Not as Flat as i would expect, maybe because the multimedia usage?
- Still pretty good
- As expected the power handling is not great but given the size...
View attachment 98846
Directivity:
Better stay at tweeter height (MTM configuration...)
The wave guide seems to be not that efficient on the Vertical plan and/or the XO not optimized?
Pretty good on the horizontal plan
Given the very near field intended usage just ON should be considered?
View attachment 98848
View attachment 98856
EQ design:
I have generated two EQs. The
APO config files are attached.
- The first one, labelled, LW is targeted at making the LW flat
- The second, labelled Score, starts with the first one and adds the score as an optimization variable.
- The EQs are designed in the context of regular stereo use i.e. domestic environment, no warranty is provided for a near field use in a studio environment although the LW might be better suited for this purpose.
- A few sharp adjustments that would need careful listening to validate.
- Added a High Pass filter as the THD seems to indicate it could do with it.
- Preamp gains not to be ignored, clipping may be an issue so the EQ might diminish even further the dynamic range of the speaker.
- Too bad we don't have a measurement of the built in EQ, would have been interested to see what it does...
Score EQ LW: 5.76
with sub: 7.96
Score EQ Score: 6.27
with sub: 8.04
Code:
iLoud MTM APO EQ LW 96000Hz
December132020-110110
Preamp: -4.7 dB
Filter 1: ON PK Fc 47.3 Hz Gain 0 dB Q 1.09
Filter 2: ON PK Fc 817 Hz Gain 1.5 dB Q 3.35
Filter 3: ON PK Fc 1608 Hz Gain 2.5 dB Q 3.48
Filter 4: ON PK Fc 3248 Hz Gain 1.35 dB Q 3.02
Filter 5: ON PK Fc 8410 Hz Gain 2 dB Q 1.19
Filter 6: ON PK Fc 18250 Hz Gain 4.39 dB Q 2.08
iLoud MTM APO EQ Score 96000Hz
December132020-105239
Preamp: -4.4 dB
Filter 1: ON HPQ Fc 47.3 Hz Gain 0 dB Q 1.09
Filter 2: ON PK Fc 817 Hz Gain 1.63 dB Q 3.75
Filter 3: ON PK Fc 1541 Hz Gain 2.6 dB Q 7.2
Filter 4: ON PK Fc 2500 Hz Gain -2.13 dB Q 10.5
Filter 5: ON PK Fc 2885 Hz Gain 1.44 dB Q 1.33
Filter 6: ON PK Fc 5359 Hz Gain -2.31 dB Q 2
Filter 7: ON PK Fc 6934 Hz Gain 1.67 dB Q 1.19
Filter 8: ON PK Fc 18262 Hz Gain 4.2 dB Q 2.48
View attachment 98841
Spinorama EQ LW
View attachment 98845
Spinorama EQ Score
View attachment 98844
Zoom PIR-LW-ON
View attachment 98843
Regression - Tonal
On is flat with the EQ Score
View attachment 98842
Radar no EQ vs EQ score
Nice improvements
View attachment 98840
The rest of the plots is attached.