Hello,
we already have multiple EQs for this one based on
@amirm measurements. Manual is from
@flipflop Here is a new one based on new measurements from
@hardisj :
View attachment 128448
View attachment 128450
View attachment 128449
Here is the full EQ, I would keep only the first 7, after that the algorithm is just smoothing small imperfections which are unlikely to be
correct since there is some variability between speakers. Not that the preamp gain is conservative and include a 0.5 dB to minimise
risk of clipping.
Code:
EQ for JBL 305P Mark ii computed from ASR data
Preference Score 5.0 with EQ 6.4
Generated from http://github.com/pierreaubert/spinorama/generate_peqs.py v0.7
Dated: 2021-05-07-07:10:56
Preamp: -1.2 dB
Filter 1: ON PK Fc 10237 Hz Gain -2.52 dB Q 0.13
Filter 2: ON PK Fc 1699 Hz Gain -2.85 dB Q 8.33
Filter 3: ON PK Fc 507 Hz Gain +1.28 dB Q 3.31
Filter 4: ON PK Fc 1229 Hz Gain +1.75 dB Q 10.35
Filter 5: ON PK Fc 9691 Hz Gain -0.67 dB Q 12.00
Filter 6: ON PK Fc 11585 Hz Gain +0.54 dB Q 7.32
Filter 7: ON PK Fc 7038 Hz Gain +0.66 dB Q 4.06
Filter 8: ON PK Fc 1456 Hz Gain -0.69 dB Q 12.00
Filter 9: ON PK Fc 578 Hz Gain -0.69 dB Q 12.00
Filter 10: ON PK Fc 683 Hz Gain +1.15 dB Q 11.35
Filter 11: ON PK Fc 2525 Hz Gain +0.57 dB Q 12.00
Filter 12: ON PK Fc 2283 Hz Gain +0.48 dB Q 12.00
Filter 13: ON PK Fc 733 Hz Gain +0.89 dB Q 12.00
Filter 14: ON PK Fc 703 Hz Gain -0.77 dB Q 12.00
Filter 15: ON PK Fc 1007 Hz Gain +0.57 dB Q 12.00
Filter 16: ON PK Fc 2130 Hz Gain -0.61 dB Q 12.00
Filter 17: ON PK Fc 831 Hz Gain -0.52 dB Q 12.00
Filter 18: ON PK Fc 512 Hz Gain +0.29 dB Q 12.00
Filter 19: ON PK Fc 482 Hz Gain -0.56 dB Q 12.00
Score change from 5.0 to 6.4. SPK is original SPeaKer S1 is manual S2 is autoEQ.
Code:
JBL 305P Mark ii
SPK S1 S2
----------------------
NBD ON 0.37 0.38 0.25
NBD LW 0.32 0.36 0.19
NBD PIR 0.29 0.34 0.20
SM PIR 0.49 0.95 0.87
SM SP 0.81 0.96 0.91
LFX 44 42 44
LFQ 0.54 0.54 0.54
----------------------
Score 5.0 5.9 6.4
----------------------