Short answer: the MoFi SourcePoint 10 on measured sound quality, the Polk Signature Elite ES20 on price. The MoFi SourcePoint 10 ranks #27 of 222 bookshelf speakers, rated 4.4/5, at $3,795. The Polk Signature Elite ES20 ranks #119, rated 3.7/5, at $398.98, $3,396.02 cheaper.
What the Polk Signature Elite ES20 does well: Large, efficient bookshelf speakers with unusually deep bass for the price and wide horizontal coverage. Watch for: Predicted in-room smoothness of 0.238 and directivity-index consistency of 3.81 are average rather than class-leading.
The MoFi SourcePoint 10 is the better-sounding choice. A large bookshelf speaker with a 10 inch concentric driver that acts like a point source, with a huge soundstage and strong, clean dynamics. The tradeoff: Like virtually all coincident designs, sounds notably bright pointed directly on-axis due to a deliberate treble lift (meant to compensate for the 28mm tweeter’s earlier beaming versus a typical 25mm/1” tweeter) combined with a diffraction dip/peak from the waveguide edge; needs about 15° of toe-out to sound neutral, and even then benefits from an extra 1-2dB of treble EQ.
Buy the Polk Signature Elite ES20 when the price outweighs sound quality for you, and the MoFi SourcePoint 10 when sound quality outweighs the price instead.
Looking for alternatives? See the complete Passive Home rankings.
Large, efficient bookshelf speakers with unusually deep bass for the price and wide horizontal coverage.
A large bookshelf speaker with a 10 inch concentric driver that acts like a point source, with a huge soundstage and strong, clean dynamics.
Prices on this page were last checked October 31, 2026 at 7:11 PM UTC. Product prices and availability are accurate as of that date/time and are subject to change; the price and availability shown on Amazon at the time of purchase will apply to the purchase of this product.
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Specifications Side By Side
| Polk Signature Elite ES20 | MoFi SourcePoint 10 | |
|---|---|---|
| Price | $398.98 per pair | $3795 per pair |
| Ranked | #119 of 222 in Large Size Bookshelf Speakers | #27 of 222 in Large Size Bookshelf Speakers |
| Enclosure | 2-way, Power Port bass-reflex | - |
| Drivers | 1” Terylene dome tweeter, 6.5” polypropylene woofer | 10” Paper-pulp Cone woofer, 1.25-inch soft-dome tweeter |
| Dimensions | 14.8H x 8.5W x 13.8D in | 22.5”H x 14.5”W x 16.6”D (571.5 x 368.3 x 421.6 mm) |
| Weight | 17 lbs (7.7 kg) each | 46.3 lbs (21.0 kg) each |
| Sensitivity | 86dB | 88.2dB (measured, Erin’s Audio Corner) |
| Impedance | 4/8-ohm compatible | 8 ohms nominal, 6.4 ohms minimum (measured, Erin’s Audio Corner) |
| Country | United States (design) | - |
| Spinorama Preference Score | 4.49 | 4.16 |
| Spinorama Preference Score with Perfect Sub | 6.44 | 6.17 |
| Bass Extension (-3dB) | 55.7Hz (measured, ASR via spinorama.org) | 56Hz (measured, Erin’s Audio Corner) |
| Bass Extension (-10dB) | 38.6Hz (derived, log-interpolated between spinorama.org -9dB/-12dB points) | 38Hz (measured, Erin’s Audio Corner) |
| DIY Kit | No | No |
| Woofer Cabinet | - | ported, rear |
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