Short answer: the Q Acoustics 5040 for better sound quality, the Klipsch RP-6000F II for the lower price. The Q Acoustics 5040 ranks #113 of 226 floorstanding speakers, rated 4.1/5, at $4,014.96. The Klipsch RP-6000F II ranks #140, rated 3.9/5, at $999.98, $3,014.98 cheaper.
Why pick the Q Acoustics 5040: C3 (Continuous Curved Cone) driver profile technology provides smooth midrange integration, controlled cone breakup, and improved bass damping. 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.
The Klipsch RP-6000F II is the more accurate choice. Highest power handling and clean, well-behaved compression at typical volumes. Its measured preference score, a predictor of how neutral it sounds, is 5.74 against 3.80 for the Q Acoustics 5040. The catch: Worse baffle-step coloration than the smaller Klipsch RP-5000F II (3-4dB swing vs 2dB), plus a sibilance issue the 5000F doesn’t have: a real regression in tonal balance despite the higher price.
Buy the Q Acoustics 5040 if sound quality is the priority over the price, or the Klipsch RP-6000F II if the price is the priority over sound quality.
Want more options? Browse the full Passive Home rankings.
Specifications Side By Side
| Q Acoustics 5040 | Klipsch RP-6000F II | |
|---|---|---|
| Price | $4,014.96 per pair | $999.98 per pair |
| Ranked | #113 of 226 in Large Size Floorstanding Speakers | #140 of 226 in Large Size Floorstanding Speakers |
| Bass Extension (-10dB) | 39Hz (measured, Erin’s Audio Corner) | 33Hz (measured, Erin’s Audio Corner) |
| Bass Extension (-3dB) | 70Hz (measured, Erin’s Audio Corner) | 67Hz (measured, Erin’s Audio Corner) |
| Dimensions | 38.1”H x 11.5”W x 14.2”D (967 x 293 x 361 mm) | 39.6” x 9.3” x 17.6” (1006 x 236 x 446 mm) |
| Impedance | 6 ohms nominal (3.0 ohms minimum, measured by Erin’s Audio Corner) | 8 ohms nominal (3.7 ohms minimum, measured, Erin’s Audio Corner) |
| Sensitivity | 91.5dB (measured average, Erin’s Audio Corner) | 90dB (2.83V/1m, measured by Erin’s Audio Corner) |
| Drivers | 0.88 in. decoupled dome tweeter, twin 5.0 in. C3 Continuous Curved Cone woofers | 1” titanium tweeter with Tractrix horn, dual 6.5” cerametallic woofers |
| Weight | 39.7 lbs (18.0 kg) each | 49.4 lbs (22.4 kg) |
| Woofer Cabinet | ported, rear | ported, rear |
| Spinorama Preference Score | 3.80 | 5.74 |
| Spinorama Preference Score with Perfect Sub | 6.41 | 7.47 |
| DIY Kit | No | No |
| Frequency Response | - | 38Hz - 25kHz (+-3dB, Manufacturer specified) |
| Crossover Frequency | - | 1770Hz |
| Power Handling | - | 125W continuous, 500W peak |
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Prices on this page were last checked October 9, 2026 at 8:01 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: $4,014.96 per pair Amazon eBay
Same family: the Q Acoustics 5010 (smaller bookshelf, estimated 3.5/5), the Q Acoustics 5020 (larger bookshelf, rated 2.2/5), the Q Acoustics 5050 (larger floorstanding, ranked higher, estimated 4.3/5) and the Q Acoustics 5090 (center, estimated 3.7/5).
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. Measured bass extension of 70Hz (-3dB), with a measured sensitivity of 91.5dB.
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) |
| DIY Kit | No |
| 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) |
| Spinorama Preference Score | 3.80 |
| Spinorama Preference Score with Perfect Sub | 6.41 |
| Weight | 39.7 lbs (18.0 kg) each |
| Woofer Cabinet | ported, rear |
- Links
- Reviews, Comparisons and Sound Samples
- Head-to-Head Comparisons
- Q Acoustics 5040 vs Klipsch Forte IV
- Q Acoustics 5040 vs KEF Q11 Meta
- Q Acoustics 5040 vs Klipsch RP-5000F II
- Q Acoustics 5040 vs Infinity Primus 360
- Q Acoustics 5040 vs Klipsch RP-8000F II
- Q Acoustics 5040 vs Dynaudio Emit 30
- Q Acoustics 5040 vs Polk Reserve R500
- Q Acoustics 5040 vs ELAC Debut 3.0 DF63
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Klipsch RP-6000F II: $999.98 per pair Amazon eBay
Same family: the Klipsch RP-500M II (smaller bookshelf, rated 4/5), the Klipsch RP-600M II (larger bookshelf, rated 3.7/5), the Klipsch RP-5000F II (smaller floorstanding, ranked higher, rated 4/5), the Klipsch RP-8000F II (larger floorstanding, ranked higher, rated 3.9/5), the Klipsch RP-8060FA II (larger floorstanding, ranked lower, estimated 3.8/5), the Klipsch RP-404C II (smallest center, rated 3.7/5), the Klipsch RP-500C II (center, rated 3.9/5), the Klipsch RP-504C II (largest center, rated 3.8/5), the Klipsch Reference Premiere RP-500SA II (smaller surround, estimated 3.5/5) and the Klipsch Reference Premiere RP-502S II (larger surround, estimated 3.5/5). See every Klipsch Reference Premiere generation.
Pros: Highest power handling and clean, well-behaved compression at typical volumes. Precise imaging from the controlled horn directivity. Measured bass extension of 67Hz (-3dB), with a measured sensitivity of 90dB.
Cons: Worse baffle-step coloration than the smaller Klipsch RP-5000F II (3-4dB swing vs 2dB), plus a sibilance issue the 5000F doesn’t have: a real regression in tonal balance despite the higher price. Bass extension is mixed (less deep at -3dB (67Hz) than the 5000F) and needs a subwoofer regardless. Narrow horizontal dispersion (~50-60 degrees).
Full Klipsch RP-6000F II review and specifications →
| Bass Extension (-10dB) | 33Hz (measured, Erin’s Audio Corner) |
|---|---|
| Bass Extension (-3dB) | 67Hz (measured, Erin’s Audio Corner) |
| Crossover Frequency | 1770Hz |
| DIY Kit | No |
| Dimensions | 39.6” x 9.3” x 17.6” (1006 x 236 x 446 mm) |
| Drivers | 1” titanium tweeter with Tractrix horn, dual 6.5” cerametallic woofers |
| Frequency Response | 38Hz - 25kHz (+-3dB, Manufacturer specified) |
| Impedance | 8 ohms nominal (3.7 ohms minimum, measured, Erin’s Audio Corner) |
| Power Handling | 125W continuous, 500W peak |
| Sensitivity | 90dB (2.83V/1m, measured by Erin’s Audio Corner) |
| Spinorama Preference Score | 5.74 |
| Spinorama Preference Score with Perfect Sub | 7.47 |
| Weight | 49.4 lbs (22.4 kg) |
| Woofer Cabinet | ported, rear |
- Links
- Reviews, Comparisons and Sound Samples
- Head-to-Head Comparisons
- Klipsch RP-6000F II vs Dynaudio Emit 30
- Klipsch RP-6000F II vs Klipsch RP-8000F II
- Klipsch RP-6000F II vs Definitive Technology BP-9020
- Klipsch RP-6000F II vs SVS Ultra Evolution Pinnacle
- Klipsch RP-6000F II vs Polk T50
- Klipsch RP-6000F II vs Klipsch RP-5000F II
- Klipsch RP-6000F II vs KEF Q11 Meta
- Klipsch RP-6000F II vs Klipsch Forte IV
- See all 41 comparisons