Short answer: the GR-Research NX-Treme. It ranks #1 of 25 floorstanding speakers at $9662; the Revel F328Be ranks #5 and costs $13600, so there is not much of a tradeoff to weigh.
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 if the ranking matters more than the price. Buy the Revel F328Be if the price matters more than the ranking.
Specifications Side By Side
| GR-Research NX-Treme | Revel F328Be | |
|---|---|---|
| Price | $9662 for the kit with subs (assembly required) | $13600 |
| Ranked | #1 of 25 in Large Size Floorstanding Speakers | #5 of 25 in Large Size Floorstanding Speakers |
| Bass Extension (-3dB) | <20hz (With GR-Research open baffle subwoofers) | 74Hz |
| 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 |
| Drivers | Eight 6.5" M165 open baffle woofer, Two 6.5" M165NQ open baffle midrange, GR Neo 3 Magnetic planar open baffle tweeter | 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 |
| Subwoofer | Three 12" Rythmik Audio servo controlled | - |
| Woofer Cabinet | Open baffle | Dual rear-mounted ports |
| Weight | (35.3 lbs / 16 kg) | 112.4 lbs / 51 kg each |
| Bass Extension (-10dB) | - | 39Hz |
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 |
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Revel F328Be: $13600 Crutchfield
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.
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).
| Bass Extension (-10dB) | 39Hz |
|---|---|
| Bass Extension (-3dB) | 74Hz |
| 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 |
| Sensitivity | 91dB |
| Weight | 112.4 lbs / 51 kg each |
| Woofer Cabinet | Dual rear-mounted ports |
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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.