Short answer: the Revel F328Be for better sound quality, the Q Acoustics 5040 for the lower price. The Revel F328Be ranks #8 of 71 floorstanding speakers at $13600. The Q Acoustics 5040 ranks #33 at $1236.49, $12363.51 cheaper.
What the Q Acoustics 5040 offers: C3 (Continuous Curved Cone) driver profile technology provides smooth midrange integration, controlled cone breakup, and improved bass damping. High voltage sensitivity (91.5dB SPL at 2.83V/1m) allows loud listening with low-to-moderate amplifier wattage. Cabinet features Point-to-Point (P2P) internal bracing and Helmholtz Pressure Equalizer (HPE) tubes to suppress internal standing waves and panel vibrations. Watch for: Free-field frequency response exhibits a noticeable mid-bass scoop around 200Hz (~6dB lower than mean SPL), causing an F3 of 70Hz (F10 of 39Hz) in open space and requiring boundary placement (11-22 inches from front wall) to reinforce upper bass output. Measurements indicate an enclosure resonance near 300Hz visible in sound power data. Minimum impedance drops to 3.0 ohms, demanding a stable 4-ohm rated amplifier despite high sensitivity.
What the Revel F328Be offers: 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. Watch for: 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).
Buy the Q Acoustics 5040 if the price matters more than sound quality. Buy the Revel F328Be if sound quality matters more than the price.
Specifications Side By Side
| Q Acoustics 5040 | Revel F328Be | |
|---|---|---|
| Price | $1,236.49 | $13600 |
| Ranked | #33 of 71 in Large Size Floorstanding Speakers | #8 of 71 in Large Size Floorstanding Speakers |
| Bass Extension (-10dB) | 39Hz (measured, Erin’s Audio Corner) | 39Hz (measured, Audio Science Review) |
| Bass Extension (-3dB) | 70Hz (measured, Erin’s Audio Corner) | 74Hz (measured, Audio Science Review) |
| Dimensions | 38.1"H x 11.5"W x 14.2"D (967 x 293 x 361 mm) | 50.9"H x 13.5"W x 17.6"D (1292.9 x 342.9 x 447 mm) |
| Impedance | 6 ohms nominal (3.0 ohms minimum, measured by Erin’s Audio Corner) | 8 ohms nominal (3 ohms minimum, measured by Audio Science Review) |
| Sensitivity | 91.5dB (measured average, Erin’s Audio Corner) | 91dB (measured, Audio Science Review) |
| Drivers | 0.88 in. decoupled dome tweeter, twin 5.0 in. C3 Continuous Curved Cone woofers | 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 |
| Weight | 39.7 lbs / 18.0 kg each | 112.4 lbs / 51 kg each |
| Woofer Cabinet | ported, rear | ported, rear |
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Prices on this page were last checked August 25, 2026 at 6:19 AM 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
Q Acoustics 5040: $1,236.49 Amazon eBay
Pros: C3 (Continuous Curved Cone) driver profile technology provides smooth midrange integration, controlled cone breakup, and improved bass damping. High voltage sensitivity (91.5dB SPL at 2.83V/1m) allows loud listening with low-to-moderate amplifier wattage. Cabinet features Point-to-Point (P2P) internal bracing and Helmholtz Pressure Equalizer (HPE) tubes to suppress internal standing waves and panel vibrations.
Cons: Free-field frequency response exhibits a noticeable mid-bass scoop around 200Hz (~6dB lower than mean SPL), causing an F3 of 70Hz (F10 of 39Hz) in open space and requiring boundary placement (11-22 inches from front wall) to reinforce upper bass output. Measurements indicate an enclosure resonance near 300Hz visible in sound power data. Minimum impedance drops to 3.0 ohms, demanding a stable 4-ohm rated amplifier despite high sensitivity.
Full Q Acoustics 5040 review and specifications →
| Bass Extension (-10dB) | 39Hz (measured, Erin's Audio Corner) |
|---|---|
| Bass Extension (-3dB) | 70Hz (measured, Erin's Audio Corner) |
| Dimensions | 38.1"H x 11.5"W x 14.2"D (967 x 293 x 361 mm) |
| Drivers | 0.88 in. decoupled dome tweeter, twin 5.0 in. C3 Continuous Curved Cone woofers |
| Impedance | 6 ohms nominal (3.0 ohms minimum, measured by Erin's Audio Corner) |
| Sensitivity | 91.5dB (measured average, Erin's Audio Corner) |
| Weight | 39.7 lbs / 18.0 kg each |
| Woofer Cabinet | ported, rear |
- Links
- Reviews, Comparisons and Sound Samples
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- Q Acoustics 5040 vs Polk Reserve R500
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- Q Acoustics 5040 vs KEF R11 Meta
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Revel F328Be: $13600 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.
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) |
| 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) |
| Weight | 112.4 lbs / 51 kg each |
| Woofer Cabinet | ported, rear |
- Links
- Reviews, Comparisons and Sound Samples
- Head-to-Head Comparisons