Short answer: the GR-Research NX-Treme for the higher ranking, the MoFi SourcePoint 888 for the lower price. The GR-Research NX-Treme ranks #1 of 25 floorstanding speakers at $9662. The MoFi SourcePoint 888 ranks #10 at $5500, $4162 cheaper.
On the GR-Research NX-Treme side: Amazing in terms of soundstage and imaging as the speaker can radiate in all directions and not have internal reflections due to there not. Set against that: Very tall and will require GR-Research open baffle subwoofers one on each side.
The case for the MoFi SourcePoint 888: Three-way vented design: an 8” coaxial mid-range/1.25” dome tweeter driver plus two additional 8” woofers crossed at about 130Hz. The catch: A significant investment, best ordered from a dealer with a good return policy.
Buy the GR-Research NX-Treme if the ranking matters more than the price. Buy the MoFi SourcePoint 888 if the price matters more than the ranking.
Specifications Side By Side
| GR-Research NX-Treme | MoFi SourcePoint 888 | |
|---|---|---|
| Price | $9662 for the kit with subs (assembly required) | $5500 |
| Ranked | #1 of 25 in Large Size Floorstanding Speakers | #10 of 25 in Large Size Floorstanding Speakers |
| Bass Extension (-3dB) | <20hz (With GR-Research open baffle subwoofers) | 34Hz |
| Dimensions | 85"H x 17"W x 20"D (2159 x 431.8 x 508 mm) (plus a subwoofer on each side) | 41.2"H x 12.6"W x 16.1"D (1046.5 x 320 x 408.9 mm) |
| Impedance | 8 ohms | 6 ohms |
| Drivers | Eight 6.5" M165 open baffle woofer, Two 6.5" M165NQ open baffle midrange, GR Neo 3 Magnetic planar open baffle tweeter | Dual 8" paper cone woofers, 8" Paper Cone midrange, 1.25" wide roll soft dome tweeter |
| Sensitivity | 94.5dB | 85.5dB |
| Subwoofer | Three 12" Rythmik Audio servo controlled | - |
| Woofer Cabinet | Open baffle | Rear ported |
| Weight | (35.3 lbs / 16 kg) | 94.8 lbs / 43 kg each |
| Bass Extension (-10dB) | - | 26Hz |
The Two Speakers In Full
GR-Research NX-Treme: $9662 for the kit with subs (assembly required) Gr-research
Pros: Amazing in terms of soundstage and imaging as the speaker can radiate in all directions and not have internal reflections due to there not being a speaker box. One of the highest sensitivity speakers around. Open baffle mids, highs and bass (using GR-Research Open baffle subs). If you have not heard open baffle bass, you must hear it in person, there’s no going back. Amazing in terms of imaging as the speaker can radiate in all directions and not have internal reflections due to there not being a speaker box. Can easily be driven by tube amps due to the mild impedance.
Cons: Very tall and will require GR-Research open baffle subwoofers one on each side
| Bass Extension (-3dB) | <20hz (With GR-Research open baffle subwoofers) |
|---|---|
| Dimensions | 85"H x 17"W x 20"D (2159 x 431.8 x 508 mm) (plus a subwoofer on each side) |
| Drivers | Eight 6.5" M165 open baffle woofer, Two 6.5" M165NQ open baffle midrange, GR Neo 3 Magnetic planar open baffle tweeter |
| Impedance | 8 ohms |
| Sensitivity | 94.5dB |
| Subwoofer | Three 12" Rythmik Audio servo controlled |
| Weight | (35.3 lbs / 16 kg) |
| Woofer Cabinet | Open baffle |
- Head-to-Head Comparisons
- Links
MoFi SourcePoint 888: $5500 Crutchfield
Pros: Three-way vented design: an 8” coaxial mid-range/1.25” dome tweeter driver plus two additional 8” woofers crossed at about 130Hz, giving genuinely full-range output (F3 34Hz, F10 26Hz) other than the deepest subsonic content. Ranked by the reviewer among his personal top three speakers out of roughly 200 tested, alongside the KEF Blade 2 Meta and Dutch & Dutch 8C, despite costing a small fraction of either. Excellent compression/dynamic-range linearity, holding its own against much pricier speakers like the March Audio Sointuva AWG, KEF Reference 1 Meta, and KEF Blade 2 Meta. On-axis (0°) and 30°-off-axis estimated in-room responses track within about 1-1.5dB of each other above 500Hz, so tonal balance barely changes with placement or listening angle - excellent for multi-seat home theater or entertaining. Wide horizontal dispersion of about ±60°. Distortion stays low: under 1% at 86dB, and under 1% above 200Hz even at 96dB, with multitone distortion mostly under 1% as well. Not a difficult amplifier load (5-ohm minimum impedance, 4.2-ohm minimum EPDR). Checks the three boxes the reviewer considers essential for a home theater speaker: low compression, low distortion, and excellent directivity.
Cons: A significant investment, best ordered from a dealer with a good return policy. Large and heavy floorstander (about 96 lbs, 42” tall) requiring real floor space and rear clearance. Positioning is fairly specific: needs about 2 feet from the rear wall - closer causes boominess in the 40-50Hz region, farther loses bass extension. Vertical dispersion (about ±50°) is narrower than horizontal (about ±60°), since the two 8” woofers are spaced vertically apart on a tower cabinet, causing some vertical mismatch at lower frequencies. A small on-axis dip around 500Hz and a deliberately lower tweeter level (about 0.5dB below the midrange) are intentional design choices for smoother in-room response, but mean the raw on-axis measurement isn’t perfectly flat. A mild diffraction-related dip appears around 3kHz in directivity measurements. Toeing the speaker out more than about 10° starts to noticeably reduce top-end energy.
| Bass Extension (-10dB) | 26Hz |
|---|---|
| Bass Extension (-3dB) | 34Hz |
| Dimensions | 41.2"H x 12.6"W x 16.1"D (1046.5 x 320 x 408.9 mm) |
| Drivers | Dual 8" paper cone woofers, 8" Paper Cone midrange, 1.25" wide roll soft dome tweeter |
| Impedance | 6 ohms |
| Sensitivity | 85.5dB |
| Weight | 94.8 lbs / 43 kg each |
| Woofer Cabinet | Rear ported |
- Reviews, Comparisons and Sound Samples
- Head-to-Head Comparisons
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- See all 9 comparisons
- Links
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Product prices and availability were last checked August 9, 2026 at 6:57 AM UTC 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.