Short answer: the MoFi SourcePoint V10 Master Edition. It ranks #4 of 228 floorstanding speakers by sound quality, rated 4.8/5, at $7,995. The Q Acoustics 5040 ranks #113, rated 4.1/5, at $3,998, $3,997 cheaper, which does not close the gap in sound quality.
The MoFi SourcePoint V10 Master Edition is the more accurate, deeper-bass choice. Big floorstanding speakers with a 10 inch coaxial driver, precise imaging and bass deep enough to skip a subwoofer. Its measured preference score, a predictor of how neutral it sounds, is 5.00 against 3.80 for the Q Acoustics 5040. Its bass reaches about 38Hz before falling 3dB, against 70Hz for the Q Acoustics 5040. The tradeoff: Moderate sensitivity (~89 dB) means amplifier power requirements higher than many alternatives.
The case for the Q Acoustics 5040: Well-built floorstanding speakers that are easy to drive, playing loud on modest amplifiers with a smooth, well-integrated midrange. The tradeoff: Free-field frequency response exhibits a noticeable mid-bass scoop around 200Hz (~6dB lower than mean SPL), causing an F3 of 70Hz (F10 of 39Hz) in open space and requiring boundary placement (11-22 inches from front wall) to reinforce upper bass output.
Buy the MoFi SourcePoint V10 Master Edition. It is rated higher for sound quality, and saving $3,997 with the Q Acoustics 5040 does not make up for the sound-quality gap.
Still deciding? The full Passive Home rankings cover every ranked option.
Big floorstanding speakers with a 10 inch coaxial driver, precise imaging and bass deep enough to skip a subwoofer.
Well-built floorstanding speakers that are easy to drive, playing loud on modest amplifiers with a smooth, well-integrated midrange.
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Specifications Side By Side
| MoFi SourcePoint V10 Master Edition | Q Acoustics 5040 | |
|---|---|---|
| Price | $7995 per pair | $3,998 per pair |
| Ranked | #4 of 228 in Large Size Floorstanding Speakers | #113 of 228 in Large Size Floorstanding Speakers |
| Bass Extension (-10dB) | 25Hz (measured, Erin’s Audio Corner) | 39Hz (measured, Erin’s Audio Corner) |
| Bass Extension (-3dB) | 38Hz (measured, Erin’s Audio Corner) | 70Hz (measured, Erin’s Audio Corner) |
| Dimensions | 48.8”H x 15.5”W x 19.9”D (1239.5 x 393.7 x 505.5 mm) | 38.1”H x 11.5”W x 14.2”D (967 x 293 x 361 mm) |
| Impedance | 6 ohms nominal, 5.3 ohms minimum (measured, Erin’s Audio Corner) | 6 ohms nominal (3.0 ohms minimum, measured by Erin’s Audio Corner) |
| Drivers | 10” woofer, 10” paper‑cone concentric midrange, 1.25” soft‑dome concentric tweeter | 0.88 in. decoupled dome tweeter, twin 5.0 in. C3 Continuous Curved Cone woofers |
| Sensitivity | 88.8dB (measured, Erin’s Audio Corner) | 91.5dB (measured average, Erin’s Audio Corner) |
| Weight | 160.9 lbs (73 kg) | 39.7 lbs (18.0 kg) each |
| Woofer Cabinet | passive radiator | ported, rear |
| Spinorama Preference Score | 5.00 | 3.80 |
| Spinorama Preference Score with Perfect Sub | 6.31 | 6.41 |
| DIY Kit | No | No |
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