Short answer: the MoFi SourcePoint 10. Both are rated 4.4/5 for sound quality (#27 and #23 of 216 bookshelf speakers), and the MoFi SourcePoint 10 costs $3,795 against $6,000 for the Arendal 1528 Monitor 8, and with sound quality even, the cheaper one is the better buy.
The Arendal 1528 Monitor 8 is the more accurate, deeper-bass option. Three-way design featuring a 28mm tweeter, 5” mid-range, and dual 8” mid-bass drivers in a convertible sealed/ported HDF cabinet, with a supplied port bung for sealed operation near a wall. Its measured preference score, a predictor of how neutral it sounds, is 5.59 against 4.16 for the MoFi SourcePoint 10. Its bass reaches about 41Hz before falling 3dB, against 56Hz for the MoFi SourcePoint 10. Watch for: A dip in the midbase around 100Hz noticeably reduces the “chestiness” of male vocals compared to the reviewer’s reference speaker.
The case for the MoFi SourcePoint 10: Andrew Jones-designed concentric/coincident driver delivers best-in-class sound power and early-reflections directivity in the reviewer’s testing: a genuine “point source” design. 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 MoFi SourcePoint 10. Both are rated the same for sound quality, and it costs $2,205 less than the Arendal 1528 Monitor 8.
Want more options? Browse the full Passive Home rankings.
Specifications Side By Side
| Arendal 1528 Monitor 8 | MoFi SourcePoint 10 | |
|---|---|---|
| Price | $6000 per pair | $3795 per pair |
| Ranked | #23 of 216 in Large Size Bookshelf Speakers | #27 of 216 in Large Size Bookshelf Speakers |
| Bass Extension (-10dB) | 26Hz (measured, Erin’s Audio Corner) | 38Hz (measured, Erin’s Audio Corner) |
| Bass Extension (-3dB) | 41Hz (measured, Erin’s Audio Corner) | 56Hz (measured, Erin’s Audio Corner) |
| Dimensions | 31.8”H x 11.4”W x 17.6”D (807.7 x 289.6 x 447 mm) | 22.5”H x 14.5”W x 16.6”D (571.5 x 368.3 x 421.6 mm) |
| Impedance | 4 ohms nominal, 3.8 ohms minimum (measured, Erin’s Audio Corner) | 8 ohms nominal, 6.4 ohms minimum (measured, Erin’s Audio Corner) |
| Drivers | Dual 8” woofers, 5” midrange, 28mm tweeter | 10” Paper-pulp Cone woofer, 1.25-inch soft-dome tweeter |
| Sensitivity | 84.4dB (measured, Erin’s Audio Corner) | 88.2dB (measured, Erin’s Audio Corner) |
| Weight | 103.6 lbs (47 kg) each | 46.3 lbs (21.0 kg) each |
| Woofer Cabinet | ported | ported, rear |
| Spinorama Preference Score | 5.59 | 4.16 |
| Spinorama Preference Score with Perfect Sub | 7.04 | 6.17 |
| DIY Kit | No | No |
Frequency Response Compared
Both speakers’ spinorama measurements, overlaid. A flatter line is more neutral: peaks sound forward or harsh, dips sound recessed. Each curve is shifted so its average from 300 Hz to 3 kHz sits at 0 dB, so loudness differences between the two are removed and only the shape is compared.
Measurement data: Arendal 1528 Monitor 8 (measured by Erin’s Audio Corner) and MoFi SourcePoint 10 (measured by Erin’s Audio Corner), via spinorama.org.
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The Two Speakers In Full
Arendal 1528 Monitor 8: $6000 per pair Arendal Sound $6000 eBay
Same family: the Arendal Sound 1528 Bookshelf 8 (smaller bookshelf, ranked lower, estimated 4.4/5), the Arendal Sound 1528 Tower 8 (floorstanding, estimated 4.5/5) and the Arendal Sound 1528 Center 8 (center, estimated 4.1/5).
Pros: Three-way design featuring a 28mm tweeter, 5” mid-range, and dual 8” mid-bass drivers in a convertible sealed/ported HDF cabinet, with a supplied port bung for sealed operation near a wall. In ported configuration, reaches down to about 35Hz in most rooms (F3 41Hz, F10 26Hz): deep enough that many listeners could skip a subwoofer unless they want output below 40Hz. Extremely low distortion and compression across the board (harmonic, multitone, and both long- and short-term compression testing): among the best the reviewer has tested at this price, beating speakers costing twice as much. Wide, consistent horizontal soundstage of about ±60°. Smooth, non-fatiguing high frequency rather than the elevated “detail” boost common on speakers marketed for resolution. A slight forwardness around 1.5kHz adds a touch of attack without tipping into brightness. Measured bass extension of 41Hz (-3dB), with a measured sensitivity of 84.4dB.
Cons: A dip in the midbase around 100Hz noticeably reduces the “chestiness” of male vocals compared to the reviewer’s reference speaker. A diffraction-related flare in the upper-midrange/lower-treble (around 1.5-2kHz) gives a mild forwardness that benefits from sidewall absorption panels, though it’s not a major issue. Vertical sweet spot is fairly narrow at about ±20°: a bigger consideration for multi-row home theater seating than rivals like the MoFi SourcePoint 8, which manages about ±60°. The MoFi SourcePoint 8, a similarly-priced rival, also has more linear bass with no midbase dip, at the cost of a more elevated top end. Minor resonances appear around 400Hz and 800Hz in measurements, though the reviewer considers them inaudible or insignificant. Very heavy (about 104 lbs each) HDF cabinet requires dedicated, sturdy stands. Low EPDR (dips to about 1.9 ohms in two spots) means a Class AB amplifier needs to comfortably handle a 4-ohm load without overheating; a Class D amp is a safer choice for full-range use.
Full Arendal 1528 Monitor 8 review and specifications →
| Released | 2024 (2 years ago) |
|---|---|
| Bass Extension (-10dB) | 26Hz (measured, Erin’s Audio Corner) |
| Bass Extension (-3dB) | 41Hz (measured, Erin’s Audio Corner) |
| DIY Kit | No |
| Dimensions | 31.8”H x 11.4”W x 17.6”D (807.7 x 289.6 x 447 mm) |
| Drivers | Dual 8” woofers, 5” midrange, 28mm tweeter |
| Impedance | 4 ohms nominal, 3.8 ohms minimum (measured, Erin’s Audio Corner) |
| Sensitivity | 84.4dB (measured, Erin’s Audio Corner) |
| Spinorama Preference Score | 5.59 |
| Spinorama Preference Score with Perfect Sub | 7.04 |
| Weight | 103.6 lbs (47 kg) each |
| Woofer Cabinet | ported |
- Links
- Reviews, Comparisons and Sound Samples
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MoFi SourcePoint 10: $3795 per pair Crutchfield $3795 eBay
Newer model: the MoFi SourcePoint 10 Master Edition, ranked lower, rated 3.8/5, released Jul 2025. See every MoFi SourcePoint generation.
Same family: the MoFi SourcePoint 8 (smaller bookshelf, ranked higher, rated 4.5/5) and the MoFi SourcePoint 888 (floorstanding, rated 4.7/5).
Pros: Andrew Jones-designed concentric/coincident driver delivers best-in-class sound power and early-reflections directivity in the reviewer’s testing: a genuine “point source” design. Vertical and horizontal radiation patterns closely match each other (about ±50° horizontal, ±30-40° vertical), a hallmark benefit of a well-executed concentric driver. Distortion stays low: under 1% above 100Hz at 86dB, and under 3% up to 100Hz even at 96dB, better than the reviewer expected from a low-excursion waveguide-loaded woofer. Surprisingly strong dynamic capability with little audible compression at both low and high volume. Widely spaced (about 11 feet apart) with roughly 15° of toe-out produced a huge, expansive soundstage without significant loss of imaging precision. Solidly built cabinet (about 40 lbs, heavily braced) minimizes cabinet resonance. Measured bass extension of 56Hz (-3dB), with a measured sensitivity of 88.2dB.
Cons: 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. Toeing out further (to 30°) flattens the treble further but introduces a dip in the midrange-to-tweeter crossover region: there’s no single toe-out angle that fixes everything at once. F3 of 56Hz and F10 of 38Hz (about 40Hz in-room) mean genuine deep bass is limited; the reviewer would pair it with a sealed 10” or 12” subwoofer for regular daily listening. Bass extension and cabinet placement trade off against midrange cleanliness: placing it close to a wall for more bass risks a wall-bounce suckout in the midrange (roughly 200-500Hz depending on distance). Not perfectly time-aligned between tweeter and woofer (about 0.4ms delta), an inherent limitation of passive coincident drivers versus actively time-corrected designs. Some resonances appear in measurements, likely port-related. Minimum impedance around 6.4 ohms with EPDR near 3 ohms, so the reviewer recommends sticking with a 4-ohm-rated amplifier to be safe.
Full MoFi SourcePoint 10 review and specifications →
| Released | Nov 2022 (3 years ago) |
|---|---|
| Bass Extension (-10dB) | 38Hz (measured, Erin’s Audio Corner) |
| Bass Extension (-3dB) | 56Hz (measured, Erin’s Audio Corner) |
| DIY Kit | No |
| Dimensions | 22.5”H x 14.5”W x 16.6”D (571.5 x 368.3 x 421.6 mm) |
| Drivers | 10” Paper-pulp Cone woofer, 1.25-inch soft-dome tweeter |
| Impedance | 8 ohms nominal, 6.4 ohms minimum (measured, Erin’s Audio Corner) |
| Sensitivity | 88.2dB (measured, Erin’s Audio Corner) |
| Spinorama Preference Score | 4.16 |
| Spinorama Preference Score with Perfect Sub | 6.17 |
| Weight | 46.3 lbs (21.0 kg) each |
| Woofer Cabinet | ported, rear |
- Links
- Reviews, Comparisons and Sound Samples
- Head-to-Head Comparisons
- MoFi SourcePoint 10 vs Radiant Acoustics Clarity 6.2
- MoFi SourcePoint 10 vs Wharfedale Super Linton
- MoFi SourcePoint 10 vs Dynaudio Heritage Special
- MoFi SourcePoint 10 vs Ascend Acoustics CMT-340 SE2
- MoFi SourcePoint 10 vs AsciLab F6Bs
- MoFi SourcePoint 10 vs Wharfedale Linton 85
- MoFi SourcePoint 10 vs MoFi SourcePoint 8
- MoFi SourcePoint 10 vs Ascend Acoustics Sierra-LX
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