Short answer: the GR-Research NX-Treme. It ranks #1 of 71 against #8 of 71 for the Revel F328Be. The NX-Treme images in every direction but is very tall and needs open baffle subwoofers; the Revel’s CEA2034 spinorama shows a flat on-axis response and efficiency above 90dB, though its vertical directivity is asymmetric.
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. The tradeoff: Very tall and will require GR-Research open baffle subwoofers one on each side.
The case for the Revel F328Be: CEA2034 spinorama shows a quite flat on-axis response with superb directivity and efficiency above 90dB. Set against that: Vertical directivity is asymmetric - the reviewer recommends staying between -20 and +40 degrees relative to the tweeter axis.
Buy the GR-Research NX-Treme. It is rated higher for sound quality than the Revel F328Be and costs less, so the other one has nothing left to offer.
Still deciding? The full Passive Home rankings cover every ranked option.
Specifications Side By Side
| GR-Research NX-Treme | Revel F328Be | |
|---|---|---|
| Price | $9662 per pair for the kit with subs (assembly required) | $9679.95 per pair |
| Ranked | #1 of 71 in Large Size Floorstanding Speakers | #8 of 71 in Large Size Floorstanding Speakers |
| Bass Extension (-3dB) | <20Hz (With GR-Research open baffle subwoofers) | 74Hz (measured, Audio Science Review) |
| Dimensions | 85"H x 17"W x 20"D (2159 x 431.8 x 508 mm) (plus a subwoofer on each side) | 50.9"H x 13.5"W x 17.6"D (1292.9 x 342.9 x 447 mm) |
| Impedance | 8 ohms | 8 ohms nominal (3 ohms minimum, measured by Audio Science Review) |
| Drivers | Eight 6.5" M165 open baffle woofer, Two 6.5" M165NQ open baffle midrange, GR Neo 3 Magnetic planar open baffle tweeter; Three 12-inch Rythmik Audio servo-controlled subwoofers; Three 12-inch Rythmik Audio servo-controlled subwoofers; Three 12-inch Rythmik Audio servo-controlled subwoofers; Three 12-inch Rythmik Audio servo-controlled subwoofers | Three 8" (200mm) Deep Ceramic Composite aluminum cones, with cast frames woofer, 5-1/4" (130mm) Deep Ceramic Composite aluminum cone, with cast frame midrange, 1" (25mm) Beryllium dome, with acoustic lens waveguide tweeter |
| Sensitivity | 94.5dB | 91dB (measured, Audio Science Review) |
| Woofer Cabinet | open baffle | ported, rear |
| Weight | (35.3 lbs (16 kg)) | 112.4 lbs (51 kg) each |
| DIY Kit | Yes | No |
| Bass Extension (-10dB) | - | 39Hz (measured, Audio Science Review) |
| Spinorama Preference Score | - | 5.79 |
| Spinorama Preference Score with Perfect Sub | - | 7.20 |
Related Speaker Comparisons
How GR-Research NX-Treme compares with other leading options:
- GR-Research NX-Treme vs KEF Blade Two Meta
- GR-Research NX-Treme vs MoFi SourcePoint V10 Master Edition
- GR-Research NX-Treme vs MoFi SourcePoint 888
- JBL Studio 698 vs GR-Research NX-Treme
- GR-Research NX-Treme vs Revel Concerta2 F35
Prices on this page were last checked September 23, 2026 at 11:24 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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The Two Speakers In Full
GR-Research NX-Treme: $9662 per pair for the kit with subs (assembly required) Gr-research eBay
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. Measured bass extension of <20Hz (-3dB).
Cons: Very tall and will require GR-Research open baffle subwoofers one on each side
Full GR-Research NX-Treme review and specifications →
| Bass Extension (-3dB) | <20Hz (With GR-Research open baffle subwoofers) |
|---|---|
| DIY Kit | Yes |
| 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; Three 12-inch Rythmik Audio servo-controlled subwoofers; Three 12-inch Rythmik Audio servo-controlled subwoofers; Three 12-inch Rythmik Audio servo-controlled subwoofers; Three 12-inch Rythmik Audio servo-controlled subwoofers |
| Impedance | 8 ohms |
| Sensitivity | 94.5dB |
| Weight | (35.3 lbs (16 kg)) |
| Woofer Cabinet | open baffle |
- Links
- Reviews, Comparisons and Sound Samples
- No independent measurement review is linked for this model; it is ranked from hands-on listening and comparison against similarly priced speakers.
- Head-to-Head Comparisons
- GR-Research NX-Treme vs KEF Blade Two Meta
- GR-Research NX-Treme vs MoFi SourcePoint V10 Master Edition
- GR-Research NX-Treme vs MoFi SourcePoint 888
- GR-Research NX-Treme vs JBL Studio 698
- GR-Research NX-Treme vs Revel Concerta2 F35
- GR-Research NX-Treme vs Klipsch Forte IV
- GR-Research NX-Treme vs Polk T50
Revel F328Be: $9679.95 per pair Crutchfield eBay
Pros: CEA2034 spinorama shows a quite flat on-axis response with superb directivity and efficiency above 90dB. Predicted in-room response is extremely accurate, with a smooth ~5dB downward slope from bass to treble that suits typical rooms without correction. Early reflections sum very nicely with the direct sound. Horizontal beamwidth of about ±70 degrees is wide and quite smooth. At 96dB SPL/1m distortion stays easily below the reviewer’s audibility threshold across nearly the whole range. Measured bass extension of 74Hz (-3dB), with a measured sensitivity of 91dB.
Cons: Vertical directivity is asymmetric - the reviewer recommends staying between -20 and +40 degrees relative to the tweeter axis, reflecting the driver layout of this three-way tower. Impedance dips to a minimum of 3 ohms with an additional resonance-driven phase swing, calling for an amplifier comfortable with a demanding load. Very expensive and very heavy (51 kg each).
Full Revel F328Be review and specifications →
| Bass Extension (-10dB) | 39Hz (measured, Audio Science Review) |
|---|---|
| Bass Extension (-3dB) | 74Hz (measured, Audio Science Review) |
| DIY Kit | No |
| Dimensions | 50.9"H x 13.5"W x 17.6"D (1292.9 x 342.9 x 447 mm) |
| Drivers | Three 8" (200mm) Deep Ceramic Composite aluminum cones, with cast frames woofer, 5-1/4" (130mm) Deep Ceramic Composite aluminum cone, with cast frame midrange, 1" (25mm) Beryllium dome, with acoustic lens waveguide tweeter |
| Impedance | 8 ohms nominal (3 ohms minimum, measured by Audio Science Review) |
| Sensitivity | 91dB (measured, Audio Science Review) |
| Spinorama Preference Score | 5.79 |
| Spinorama Preference Score with Perfect Sub | 7.20 |
| Weight | 112.4 lbs (51 kg) each |
| Woofer Cabinet | ported, rear |
- Links
- Reviews, Comparisons and Sound Samples
- Head-to-Head Comparisons