The KEF Q Series line on Speaker Ranking spans 3 generations and 13 models, from the KEF Q100 to the KEF Q1 Meta, KEF Q4 Meta and KEF Q3 Meta. Ratings run from 2.4/5 to 4.6/5. Of these, 8 are still sold.
Each column below is one generation, oldest on the left. Each row follows one model into the model that replaced it; a long arrow means a model skipped a generation. Ratings are out of 5, and an estimated rating comes from measured models in the same family.
More from this brand: every KEF speaker ranked.
Generation by generation
Q100 to Q150
The KEF Q150 replaced the KEF Q100. It rates higher, 3.7/5 against 2.4/5.
| Spec | Q100 | Q150 |
|---|---|---|
| Drivers | 5.25” Uni-Q aluminum coaxial driver, 1” aluminum dome tweeter | 130mm (5.25”) aluminium Uni-Q woofer, 25mm (1”) vented aluminium dome tweeter |
| Sensitivity | 85dB (2.83V/1m, measured, Audio Science Review) | ~85dB (300Hz-3kHz on-axis, measured, Erin’s Audio Corner) |
| Bass Extension (-3dB) | 85Hz | 51Hz |
| Weight | 13 lbs (5.9 kg) each | 12.3 lbs (5.6 kg) each |
Q150 to Q1 Meta
The KEF Q1 Meta replaced the KEF Q150. It rates lower, 3.6/5 against 3.7/5.
| Spec | Q150 | Q1 Meta |
|---|---|---|
| Drivers | 130mm (5.25”) aluminium Uni-Q woofer, 25mm (1”) vented aluminium dome tweeter | Uni-Q: 130mm (5.25”) aluminium cone woofer, 25mm (1”) vented aluminium dome tweeter with MAT |
| Sensitivity | ~85dB (300Hz-3kHz on-axis, measured, Erin’s Audio Corner) | 86dB |
| Bass Extension (-3dB) | 51Hz | 65.1Hz |
| Weight | 12.3 lbs (5.6 kg) each | 13.4 lbs (6.1 kg) each |
Q350 to Q3 Meta
The KEF Q3 Meta replaced the KEF Q350. It rates higher, 3.4/5 against 3.0/5.
| Spec | Q350 | Q3 Meta |
|---|---|---|
| Drivers | 25mm tweeter + 165mm woofer | 165 mm (6.5 in.) aluminium cone woofer, 25 mm (1 in.) vented aluminium dome with MAT tweeter |
| Sensitivity | 86dB | 84.5dB |
| Bass Extension (-3dB) | 70Hz | 52Hz |
| Weight | 29.5 lbs (13.4 kg) | 15.9 lbs (7.2 kg) |
Full Q350 vs Q3 Meta comparison
Q250c to Q6 Meta
The KEF Q6 Meta replaced the KEF Q250c. Both rate 3.9/5.
| Spec | Q250c | Q6 Meta |
|---|---|---|
| Drivers | Uni-Q: 1” vented aluminum dome tweeter in 5.25” aluminum cone; 2x 5.25” passive radiators | Uni-Q: 19mm (0.75”) vented aluminium dome tweeter with MAT, 100mm (4”) aluminium midrange; 2x 165mm (6.5”) hybrid aluminium bass units |
| Sensitivity | 87dB | 86dB |
| Bass Extension (-3dB) | 90.8Hz | 60.7Hz |
| Weight | 16.5 lbs (7.5 kg) | 31.1 lbs (14.1 kg) |
Frequently Asked Questions
How many generations of the KEF Q Series are there?
Speaker Ranking covers 3 generations of the KEF Q Series, from the KEF Q100 to the KEF Q1 Meta, KEF Q4 Meta and KEF Q3 Meta.
What replaced the KEF Q100?
The KEF Q150 replaced the KEF Q100. It is rated 3.7/5, against 2.4/5 for the KEF Q100.
What replaced the KEF Q150?
The KEF Q1 Meta replaced the KEF Q150. It is rated 3.6/5, against 3.7/5 for the KEF Q150.
What replaced the KEF Q350?
The KEF Q3 Meta replaced the KEF Q350. It is rated 3.4/5, against 3.0/5 for the KEF Q350.
What replaced the KEF Q250c?
The KEF Q6 Meta replaced the KEF Q250c. Both are rated 3.9/5.