- Quality of the measurement data is medium.
- Origin of the data is KEF.
- Format of the data is .
-
Sensitivity:
- Measured: 88.2 dB (avg. 300Hz-3kHz for 2.83V measured at 1m).
- -3dB (resp. -6db) point v.s. reference is at 46.5Hz (resp. 32.9Hz).
- Reference level is normalised to 0.6dB computed over the frequency range [300.0Hz, 5000.0Hz].
- Frequency deviation is 1.7dB over the same frequency range.
- Tonality (Preference) Score
- Tonality (Preference) Score is 6.63
and would be 8.09 with a
perfect subwoofer.
- Details: NBD: ON 0.371, LW 0.256, SP 0.32, PIR 0.282; SM: SP0.973, PIR0.94; LFQ 0.936, LFX 31Hz
- Tonality (Preference) Score is 7.24
with an EQ and would be 8.57 with a
perfect subwoofer and the same EQ.
- Details: NBD: ON 0.283, LW 0.194, SP 0.246, PIR 0.191; SM: SP0.972, PIR0.933; LFQ 0.936, LFX 29Hz
- Tonality (Preference) Score is 6.63
and would be 8.09 with a
perfect subwoofer.
- Note: the off-axis average curves are truncated at 200Hz as this is close to the LF cut-off limit of our anechoic chamber. The on-axis LF response has been compensated using ground plane measurements carried out in free-field and is therefore valid only for that singular curve..
KEF Reference 4C Meta is a passive center that cost around 8000 USD
| AutomaticEQ (IIR) | |||
| Set preamp gain to: -2.8dB. | |||
| Type | Freq | Q | Gain |
|---|---|---|---|
| LS | 58.0 | 0.76 | 2.98 |
| PK | 102.0 | 0.66 | -1.95 |
| PK | 200.0 | 2.74 | 0.88 |
| PK | 342.0 | 1.77 | 1.62 |
| PK | 584.0 | 0.4 | -1.12 |
| PK | 1032.0 | 2.51 | 1.84 |
| PK | 3325.0 | 1.66 | 1.12 |
| PK | 11077.0 | 2.09 | 0.92 |
| PK | 13997.0 | 0.73 | 1.16 |
| Download | |||
This EQ optimise the Harman score and is a good start for far field listening like in your living room.
| Graphic EQ 15 bands | |||
| Set preamp gain to: -0.6dB. | |||
| Type | Freq | Q | Gain |
|---|---|---|---|
| PK | 25.0 | 2.14 | 0.5 |
| PK | 40.0 | 2.14 | 0.5 |
| PK | 63.0 | 2.14 | -0.25 |
| PK | 100.0 | 2.14 | -0.25 |
| PK | 160.0 | 2.14 | -0.25 |
| PK | 250.0 | 2.14 | 0.0 |
| PK | 400.0 | 2.14 | 0.0 |
| PK | 630.0 | 2.14 | -0.25 |
| PK | 1000.0 | 2.14 | 0.0 |
| PK | 1600.0 | 2.14 | 0.0 |
| PK | 2500.0 | 2.14 | 0.0 |
| PK | 4000.0 | 2.14 | 0.0 |
| PK | 6300.0 | 2.14 | -0.25 |
| PK | 10000.0 | 2.14 | 0.0 |
| PK | 16000.0 | 2.14 | 0.0 |
| Download | |||
This EQ is designed for a 15 bands graphical EQ.
| Graphic EQ 31 bands | |||
| Set preamp gain to: -0.7dB. | |||
| Type | Freq | Q | Gain |
|---|---|---|---|
| PK | 20.0 | 4.32 | 0.0 |
| PK | 25.0 | 4.32 | 0.5 |
| PK | 31.0 | 4.32 | 0.5 |
| PK | 40.0 | 4.32 | 0.5 |
| PK | 50.0 | 4.32 | 0.25 |
| PK | 63.0 | 4.32 | -0.25 |
| PK | 80.0 | 4.32 | -0.25 |
| PK | 100.0 | 4.32 | -0.25 |
| PK | 125.0 | 4.32 | -0.25 |
| PK | 160.0 | 4.32 | -0.25 |
| PK | 200.0 | 4.32 | 0.0 |
| PK | 250.0 | 4.32 | 0.0 |
| PK | 315.0 | 4.32 | 0.25 |
| PK | 400.0 | 4.32 | 0.0 |
| PK | 500.0 | 4.32 | 0.0 |
| PK | 630.0 | 4.32 | 0.0 |
| PK | 800.0 | 4.32 | 0.0 |
| PK | 1000.0 | 4.32 | 0.25 |
| PK | 1250.0 | 4.32 | 0.0 |
| PK | 1600.0 | 4.32 | 0.0 |
| PK | 2000.0 | 4.32 | 0.25 |
| PK | 2500.0 | 4.32 | 0.0 |
| PK | 3150.0 | 4.32 | 0.25 |
| PK | 4000.0 | 4.32 | 0.25 |
| PK | 5000.0 | 4.32 | 0.25 |
| PK | 6300.0 | 4.32 | 0.0 |
| PK | 8000.0 | 4.32 | 0.25 |
| PK | 10000.0 | 4.32 | 0.25 |
| PK | 12000.0 | 4.32 | 0.25 |
| PK | 16000.0 | 4.32 | 0.25 |
| PK | 20000.0 | 4.32 | 0.0 |
| Download | |||