Short answer: the GR-Research NX-Studio for a clean waterfall, the MoFi SourcePoint 10 for best-in-class directivity. The NX-Studio’s burst decay plot is ultra clean, though its sealed enclosure means bass is tight rather than deep. The SourcePoint 10’s concentric driver delivers best-in-class sound power and early-reflections directivity, but like most coincident designs it sounds notably bright on-axis thanks to a deliberate treble lift.
On the GR-Research NX-Studio side: Ultra clean burst decay/waterfall plot. The tradeoff: Bass will be very tight but won’t be quite as deep as others due to the sealed woofer enclosure.
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 catch: 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 GR-Research NX-Studio. It is rated higher for sound quality than the MoFi SourcePoint 10 and costs less, which settles it without a real tradeoff to make.
Still deciding? The full Passive Home rankings cover every ranked option.
Specifications Side By Side
| GR-Research NX-Studio | MoFi SourcePoint 10 | |
|---|---|---|
| Price | $3630 per pair | $3795 per pair |
| Ranked | #4 of 130 in Large Size Bookshelf Speakers | #26 of 130 in Large Size Bookshelf Speakers |
| Dimensions | 18"H x 8.5"W x 15.5"D (457.2 x 215.9 x 393.7 mm) | 22.5"H x 14.5"W x 16.6"D (571.5 x 368.3 x 421.6 mm) |
| Impedance | 8 ohms | 8 ohms nominal, 6.4 ohms minimum (measured, Erin's Audio Corner) |
| Sensitivity | 87dB | 88.2dB (measured, Erin's Audio Corner) |
| Drivers | GR-Research M165NQ 6.5" paper cone, non-resonant polymer frame, copper shorting rings and aluminum phase plug sealed enclosure woofer, GR-Research Neo3 Planar Magnetic Ribbon open baffle tweeter | 10" Paper-pulp Cone woofer, 1.25-inch soft-dome tweeter |
| Weight | 20.5 lbs (9.3 kg) each | 46.3 lbs (21.0 kg) each |
| Woofer Cabinet | sealed | ported, rear |
| DIY Kit | Yes | No |
| Bass Extension (-10dB) | - | 38Hz (measured, Erin's Audio Corner) |
| Bass Extension (-3dB) | - | 56Hz (measured, Erin's Audio Corner) |
| Spinorama Preference Score | - | 3.25 |
| Spinorama Preference Score with Perfect Sub | - | 5.27 |
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The Two Speakers In Full
GR-Research NX-Studio: $3630 per pair Gr-research eBay
Pros: Ultra clean burst decay/waterfall plot. Amazingly open sounding due to the semi open baffle Neo3 ribbon tweeter, will image better than any other bookshelf speaker. Neo3 ribbon tweeter is one of the best ribbons around for detail. Bass will be very tight and fast due to the sealed enclosure, but may possibly need a sub.
Cons: Bass will be very tight but won’t be quite as deep as others due to the sealed woofer enclosure.
Full GR-Research NX-Studio review and specifications →
| DIY Kit | Yes |
|---|---|
| Dimensions | 18"H x 8.5"W x 15.5"D (457.2 x 215.9 x 393.7 mm) |
| Drivers | GR-Research M165NQ 6.5" paper cone, non-resonant polymer frame, copper shorting rings and aluminum phase plug sealed enclosure woofer, GR-Research Neo3 Planar Magnetic Ribbon open baffle tweeter |
| Impedance | 8 ohms |
| Sensitivity | 87dB |
| Weight | 20.5 lbs (9.3 kg) each |
| Woofer Cabinet | sealed |
- Links
- Reviews, Comparisons and Sound Samples
- Head-to-Head Comparisons
- GR-Research NX-Studio vs KEF Reference 1 Meta
- GR-Research NX-Studio vs March Audio Sointuva AWG
- GR-Research NX-Studio vs Perlisten S4b
- GR-Research NX-Studio vs AsciLab C6B
- GR-Research NX-Studio vs Audio First Cadentia 3
- GR-Research NX-Studio vs KEF R3 Meta
- GR-Research NX-Studio vs KEF Q Concerto Meta
- GR-Research NX-Studio vs Wharfedale Aura 2
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MoFi SourcePoint 10: $3795 per pair Crutchfield eBay
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 →
| 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 | 3.25 |
| Spinorama Preference Score with Perfect Sub | 5.27 |
| Weight | 46.3 lbs (21.0 kg) each |
| Woofer Cabinet | ported, rear |
- Links
- Reviews, Comparisons and Sound Samples
- Head-to-Head Comparisons
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