Short answer: the Revel Concerta2 F35. It ranks #23 of 71 floorstanding speakers by sound quality at $900; the PS Audio Aspen FR10 ranks #38 and costs $12000, so there is not much of a tradeoff to weigh.
What the Revel Concerta2 F35 offers: Two-and-a-half-way, four-driver design: a 1” aluminum dome tweeter on a waveguide, a 5.25” mid-range, and dual 5.25” mid-bass drivers in a rear-ported cabinet. Measured sensitivity of 89.4dB closely matches the 90dB spec, and distortion looks good at both 86dB and 96dB, holding up well even with a high-pass filter applied. At its sale price (around $900/pair, down from full retail), the reviewer calls it a “no-brainer,” undercutting comparable budget floorstanders like the ELAC DF63. Frequency response and directivity mismatches are largely EQ-able, since most of what shows up in measurements traces to physical tweeter/mid-range separation rather than a fundamental flaw. Compression is fairly well controlled for the price - about 1dB of loss around 100Hz under long-term compression, described as “par for the course” at this cost. Watch for: F3 of 61Hz and F10 of 39Hz mean a subwoofer is needed for real bass extension. A dip in the lower midrange/2-3kHz region reduces attack and detail, and a peak around 5kHz adds some edge and sibilance in the lower treble. A peak in off-axis energy around 3kHz reflects off sidewalls at roughly 60-70° off-axis and arrives louder than the direct sound - this specific issue can’t be fixed with EQ (boosting the direct sound would boost the stronger reflection too) and would need acoustic absorption to properly address, though the reviewer considers it a minor, optional fix at this price. A couple of minor resonances appear in the impedance plot, including one around 300Hz that may partly explain a subtle sense of vocal warmth noticed in listening, though it’s more likely room-related. Minimum impedance around 3.8 ohms. Short-term compression testing shows some increased distortion in the tweeter and higher-frequency compression at loud output.
What the PS Audio Aspen FR10 offers: Distinctive driver layout: two 6” mid-bass drivers plus three 6x9” passive radiators, an 8” planar ribbon mid-range, and a 2.5” planar ribbon tweeter, with the woofers placed low near the floor to counteract typical floor-bounce cancellation in the mid-bass/lower-midrange handoff. Deliberately shelved bass response around 150Hz allows placement closer to the rear wall than typical, without the usual boominess. Extremely wide horizontal dispersion (the -6dB point isn’t reached until about 80-85° off-axis), giving a wide, enveloping soundstage that stays consistent rather than narrowing unevenly at different frequencies. Passed multiple stereo-imaging tests with precise placement despite the wide radiation, keeping instruments distinctly separated even in complex, heavily panned tracks. Exceptionally low multitone distortion at high frequency - among the best the reviewer has measured on any speaker. Bass extends smoothly to an F3 of 47Hz and F10 of 28Hz, potentially usable without a subwoofer for material that doesn’t dig much below 40Hz. Shows output enhancement rather than compression below about 50Hz even at high volume, adding extra punch and attack to bass transients. Watch for: At roughly $10,000/pair, expectations are high, and the reviewer found some measured shortfalls relative to that price. A scoop around 600Hz slightly thins out vocal fullness; EQ can restore some body there. A narrow but pronounced dip around 6-7kHz shows up in measurements, though EQ didn’t meaningfully improve it in testing and the reviewer says he’d rather have a dip than a peak in that sibilance-prone region. On-axis, the treble reads as mildly elevated (though far less than some rivals like Martin Logan or Focal); needs about 20° of toe-out, per the manufacturer’s own recommendation, to sound properly balanced and take on a warmer character. Sidewall acoustic treatment should be avoided, since the speaker’s wide, room-filling sound depends on that sidewall interaction, limiting setup flexibility in treated rooms. A minor resonance-like anomaly appears around 800Hz, and some compression shows up at the highest frequencies (around 12kHz) under extreme output testing, though unlikely to be audible in real listening. Large and heavy floorstander (about 76 lbs each, 41” tall).
Buy the Revel Concerta2 F35. It ranks higher for sound quality than the PS Audio Aspen FR10 and costs less, so there is no real case for the other one.
Specifications Side By Side
| Revel Concerta2 F35 | PS Audio Aspen FR10 | |
|---|---|---|
| Price | $900 | $12000 |
| Ranked | #23 of 71 in Large Size Floorstanding Speakers | #38 of 71 in Large Size Floorstanding Speakers |
| Bass Extension (-10dB) | 50Hz (measured, Erin’s Audio Corner) | 28Hz (measured, Erin’s Audio Corner) |
| Bass Extension (-3dB) | 70Hz (measured, Erin’s Audio Corner) | 47Hz (measured, Erin’s Audio Corner) |
| Dimensions | 40.3"H x 8.4"W x 12.2"D (1023.6 x 213.4 x 309.9 mm) | 41.5"H x 11.8"W x 16.3"D (1054.1 x 298.5 x 412.8 mm) |
| Impedance | 6 ohms nominal (3.8 ohms minimum, measured by Erin’s Audio Corner) | 4 ohms nominal, 3.6 ohms minimum (measured, Erin’s Audio Corner) |
| Sensitivity | 89.4dB (measured, Erin’s Audio Corner; 90dB manufacturer specified) | 84.4dB (measured, Erin’s Audio Corner) |
| Drivers | 3x 5.25" deep anodized aluminum cone woofers, 1" Aluminum Tweeter | 2x 6.5" carbon fiber cone woofers, 1x 8" planar magnetic ribbon midrange, 1x 2.5" planar magnetic ribbon tweeter + 3x passive radiators |
| Weight | 41 lbs / 18.6 kg each | 119 lbs / 54 kg |
| Woofer Cabinet | ported, rear | passive radiator |
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The Two Speakers In Full
Revel Concerta2 F35: $900 Crutchfield eBay
Pros: Two-and-a-half-way, four-driver design: a 1” aluminum dome tweeter on a waveguide, a 5.25” mid-range, and dual 5.25” mid-bass drivers in a rear-ported cabinet. Measured sensitivity of 89.4dB closely matches the 90dB spec, and distortion looks good at both 86dB and 96dB, holding up well even with a high-pass filter applied. At its sale price (around $900/pair, down from full retail), the reviewer calls it a “no-brainer,” undercutting comparable budget floorstanders like the ELAC DF63. Frequency response and directivity mismatches are largely EQ-able, since most of what shows up in measurements traces to physical tweeter/mid-range separation rather than a fundamental flaw. Compression is fairly well controlled for the price - about 1dB of loss around 100Hz under long-term compression, described as “par for the course” at this cost.
Cons: F3 of 61Hz and F10 of 39Hz mean a subwoofer is needed for real bass extension. A dip in the lower midrange/2-3kHz region reduces attack and detail, and a peak around 5kHz adds some edge and sibilance in the lower treble. A peak in off-axis energy around 3kHz reflects off sidewalls at roughly 60-70° off-axis and arrives louder than the direct sound - this specific issue can’t be fixed with EQ (boosting the direct sound would boost the stronger reflection too) and would need acoustic absorption to properly address, though the reviewer considers it a minor, optional fix at this price. A couple of minor resonances appear in the impedance plot, including one around 300Hz that may partly explain a subtle sense of vocal warmth noticed in listening, though it’s more likely room-related. Minimum impedance around 3.8 ohms. Short-term compression testing shows some increased distortion in the tweeter and higher-frequency compression at loud output.
Full Revel Concerta2 F35 review and specifications →
| Bass Extension (-10dB) | 50Hz (measured, Erin's Audio Corner) |
|---|---|
| Bass Extension (-3dB) | 70Hz (measured, Erin's Audio Corner) |
| Dimensions | 40.3"H x 8.4"W x 12.2"D (1023.6 x 213.4 x 309.9 mm) |
| Drivers | 3x 5.25" deep anodized aluminum cone woofers, 1" Aluminum Tweeter |
| Impedance | 6 ohms nominal (3.8 ohms minimum, measured by Erin's Audio Corner) |
| Sensitivity | 89.4dB (measured, Erin's Audio Corner; 90dB manufacturer specified) |
| Weight | 41 lbs / 18.6 kg each |
| Woofer Cabinet | ported, rear |
- Links
- Reviews, Comparisons and Sound Samples
- Audio Science Review Revel Concerta2 F35 More from Audio Science Review →
- Erin’s Audio Corner: Revel F35 Review: Great Sound, Lower Price! More from Erin’s Audio Corner →
- Erin’s Audio Review Website Revel Concerta2 F35
- Audio Science Review Measurements (spinorama.org)
- Reddit Search for Revel Concerta2 F35 Review
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PS Audio Aspen FR10: $12000 Psaudio eBay
Pros: Distinctive driver layout: two 6” mid-bass drivers plus three 6x9” passive radiators, an 8” planar ribbon mid-range, and a 2.5” planar ribbon tweeter, with the woofers placed low near the floor to counteract typical floor-bounce cancellation in the mid-bass/lower-midrange handoff. Deliberately shelved bass response around 150Hz allows placement closer to the rear wall than typical, without the usual boominess. Extremely wide horizontal dispersion (the -6dB point isn’t reached until about 80-85° off-axis), giving a wide, enveloping soundstage that stays consistent rather than narrowing unevenly at different frequencies. Passed multiple stereo-imaging tests with precise placement despite the wide radiation, keeping instruments distinctly separated even in complex, heavily panned tracks. Exceptionally low multitone distortion at high frequency - among the best the reviewer has measured on any speaker. Bass extends smoothly to an F3 of 47Hz and F10 of 28Hz, potentially usable without a subwoofer for material that doesn’t dig much below 40Hz. Shows output enhancement rather than compression below about 50Hz even at high volume, adding extra punch and attack to bass transients.
Cons: At roughly $10,000/pair, expectations are high, and the reviewer found some measured shortfalls relative to that price. A scoop around 600Hz slightly thins out vocal fullness; EQ can restore some body there. A narrow but pronounced dip around 6-7kHz shows up in measurements, though EQ didn’t meaningfully improve it in testing and the reviewer says he’d rather have a dip than a peak in that sibilance-prone region. On-axis, the treble reads as mildly elevated (though far less than some rivals like Martin Logan or Focal); needs about 20° of toe-out, per the manufacturer’s own recommendation, to sound properly balanced and take on a warmer character. Sidewall acoustic treatment should be avoided, since the speaker’s wide, room-filling sound depends on that sidewall interaction, limiting setup flexibility in treated rooms. A minor resonance-like anomaly appears around 800Hz, and some compression shows up at the highest frequencies (around 12kHz) under extreme output testing, though unlikely to be audible in real listening. Large and heavy floorstander (about 76 lbs each, 41” tall).
Full PS Audio Aspen FR10 review and specifications →
| Bass Extension (-10dB) | 28Hz (measured, Erin's Audio Corner) |
|---|---|
| Bass Extension (-3dB) | 47Hz (measured, Erin's Audio Corner) |
| Dimensions | 41.5"H x 11.8"W x 16.3"D (1054.1 x 298.5 x 412.8 mm) |
| Drivers | 2x 6.5" carbon fiber cone woofers, 1x 8" planar magnetic ribbon midrange, 1x 2.5" planar magnetic ribbon tweeter + 3x passive radiators |
| Impedance | 4 ohms nominal, 3.6 ohms minimum (measured, Erin's Audio Corner) |
| Sensitivity | 84.4dB (measured, Erin's Audio Corner) |
| Weight | 119 lbs / 54 kg |
| Woofer Cabinet | passive radiator |
- Links
- Reviews, Comparisons and Sound Samples
- Head-to-Head Comparisons


