Short answer: the AsciLab C6B. It ranks #7 of 122 bookshelf speakers by sound quality at $1145; the Focal Aria 906 ranks #88 and costs $2199, so there is not much of a tradeoff to weigh.
What the Focal Aria 906 offers: CEA2034 spinorama shows very flat bass response, with the reviewer rating overall performance “good.” Predicted in-room response is almost perfect prior to 1kHz. Horizontal dispersion of about ±60 degrees is good and stays even out to about -12dB before getting erratic. Woofer distortion is quite low at 86dB SPL/1m. Watch for: 3dB dip around 2.8khz. Some resonance around 800hz, small directivity error around 7khz. A dip in the upper midrange also shows up in the predicted in-room response. Distortion becomes problematic at 96dB SPL/1m, with a notable peak around 1.3-1.5kHz alongside broader midrange elevation.
What the AsciLab C6B offers: Two-way design pairing a 1” aluminum ceramic dome tweeter on a large waveguide with a 6” aluminum ceramic cone woofer, crossed over at 1.1kHz, plus a rear passive radiator. Unusual trait: horizontal radiation actually widens at higher frequencies instead of narrowing like most two-way designs, which keeps image focus and soundstage depth consistent whether you toe the speakers in or out (5-10° off-axis was the sweet spot in testing). Vertical radiation also stays wide straight through the 2kHz crossover region, so the sound doesn’t collapse when standing up - unusual at this price. CA2034 measurements show strong on-axis linearity, listening window, early reflections, and directivity. Midrange and tweeter distortion stay very low even at 96dB, holding up against a $5,900 Arendal speaker in that regard despite roughly a 5x price gap. At $935 (about $1,135 shipped to the US), the reviewer calls it the best-value bookshelf speaker he’s tested, rivaling speakers 2-5x the price. Watch for: Bass rolls off around 50Hz in-room (F3 54Hz, F10 35Hz), so a subwoofer is needed for real extension below that. Low-frequency harmonic distortion increases substantially at 96dB versus 86dB, though it’s second-order and less audible than it looks on paper. Minimum impedance dips to 2.6 ohms (EPDR as low as 1.2 ohms), so it wants an amplifier comfortable driving 4-ohm loads, ideally 100W or more. At 102dB, compression noticeably eats into midrange, bass, and some treble output. Shipping to the US adds roughly $200 on top of the $935 price. Against the reviewer’s reference Audiofirst Fidelia at a similar price, has slightly less lower-midrange body (about 1dB difference) and a smaller perceived soundstage size.
Buy the AsciLab C6B. It ranks higher for sound quality than the Focal Aria 906 and costs less, so there is no real case for the other one.
Specifications Side By Side
| Focal Aria 906 | AsciLab C6B | |
|---|---|---|
| Price | $2,199.00 used, Discontinued | $1145 |
| Ranked | #88 of 122 in Large Size Bookshelf Speakers | #7 of 122 in Large Size Bookshelf Speakers |
| Bass Extension (-10dB) | 47Hz (measured, Erin’s Audio Corner) | 35Hz (measured, Erin’s Audio Corner) |
| Bass Extension (-3dB) | 63Hz (measured, Erin’s Audio Corner) | 54Hz (measured, Erin’s Audio Corner) |
| Impedance | 4 ohms nominal (4.8 ohms minimum above 80Hz, measured by Erin’s Audio Corner) | 4 ohms nominal, 2.6 ohms minimum (measured, Erin’s Audio Corner) |
| Sensitivity | 86.5dB (measured average, Erin’s Audio Corner) | 85.6dB (measured, Erin’s Audio Corner) |
| Drivers | 26mm tweeter + 165mm mid-woofer | 6" Aluminium Ceramic Cone with cast Aluminium Chassis woofer, 1" Aluminium Ceramic Dome tweeter |
| Weight | 39.9 lbs / 18.1 kg | 18.5 lbs / 8.4 kg each |
| Discontinued | Yes | - |
| Dimensions | 15.4"H x 8.9"W x 11"D (390.0 x 225.0 x 280.0 mm) | 15.7"H x 8"W x 10.4"D (398.8 x 203.2 x 264.2 mm) |
| Woofer Cabinet | ported, front | passive radiator |
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The Two Speakers In Full
Focal Aria 906: $2,199.00 used, Discontinued Amazon eBay
Pros: CEA2034 spinorama shows very flat bass response, with the reviewer rating overall performance “good.” Predicted in-room response is almost perfect prior to 1kHz. Horizontal dispersion of about ±60 degrees is good and stays even out to about -12dB before getting erratic. Woofer distortion is quite low at 86dB SPL/1m.
Cons: 3dB dip around 2.8khz. Some resonance around 800hz, small directivity error around 7khz. A dip in the upper midrange also shows up in the predicted in-room response. Distortion becomes problematic at 96dB SPL/1m, with a notable peak around 1.3-1.5kHz alongside broader midrange elevation. Discontinued.
Full Focal Aria 906 review and specifications →
| Bass Extension (-10dB) | 47Hz (measured, Erin's Audio Corner) |
|---|---|
| Bass Extension (-3dB) | 63Hz (measured, Erin's Audio Corner) |
| Dimensions | 15.4"H x 8.9"W x 11"D (390.0 x 225.0 x 280.0 mm) |
| Discontinued | Yes |
| Drivers | 26mm tweeter + 165mm mid-woofer |
| Impedance | 4 ohms nominal (4.8 ohms minimum above 80Hz, measured by Erin's Audio Corner) |
| Sensitivity | 86.5dB (measured average, Erin's Audio Corner) |
| Weight | 39.9 lbs / 18.1 kg |
| Woofer Cabinet | ported, front |
- Links
- Reviews, Comparisons and Sound Samples
- Audio Science Review Focal Aria 906 More from Audio Science Review →
- Erin’s Audio Corner: Assessing the Good and Bad of the Focal Aria 906 More from Erin’s Audio Corner →
- Erin’s Audio Corner Website: Focal Aria 906
- Erin’s Audio Corner Measurements (spinorama.org)
- Reddit Search for Focal Aria 906 Review
- Head-to-Head Comparisons
AsciLab C6B: $1145 Ascilab eBay
Pros: Two-way design pairing a 1” aluminum ceramic dome tweeter on a large waveguide with a 6” aluminum ceramic cone woofer, crossed over at 1.1kHz, plus a rear passive radiator. Unusual trait: horizontal radiation actually widens at higher frequencies instead of narrowing like most two-way designs, which keeps image focus and soundstage depth consistent whether you toe the speakers in or out (5-10° off-axis was the sweet spot in testing). Vertical radiation also stays wide straight through the 2kHz crossover region, so the sound doesn’t collapse when standing up - unusual at this price. CA2034 measurements show strong on-axis linearity, listening window, early reflections, and directivity. Midrange and tweeter distortion stay very low even at 96dB, holding up against a $5,900 Arendal speaker in that regard despite roughly a 5x price gap. At $935 (about $1,135 shipped to the US), the reviewer calls it the best-value bookshelf speaker he’s tested, rivaling speakers 2-5x the price.
Cons: Bass rolls off around 50Hz in-room (F3 54Hz, F10 35Hz), so a subwoofer is needed for real extension below that. Low-frequency harmonic distortion increases substantially at 96dB versus 86dB, though it’s second-order and less audible than it looks on paper. Minimum impedance dips to 2.6 ohms (EPDR as low as 1.2 ohms), so it wants an amplifier comfortable driving 4-ohm loads, ideally 100W or more. At 102dB, compression noticeably eats into midrange, bass, and some treble output. Shipping to the US adds roughly $200 on top of the $935 price. Against the reviewer’s reference Audiofirst Fidelia at a similar price, has slightly less lower-midrange body (about 1dB difference) and a smaller perceived soundstage size.
Full AsciLab C6B review and specifications →
| Bass Extension (-10dB) | 35Hz (measured, Erin's Audio Corner) |
|---|---|
| Bass Extension (-3dB) | 54Hz (measured, Erin's Audio Corner) |
| Dimensions | 15.7"H x 8"W x 10.4"D (398.8 x 203.2 x 264.2 mm) |
| Drivers | 6" Aluminium Ceramic Cone with cast Aluminium Chassis woofer, 1" Aluminium Ceramic Dome tweeter |
| Impedance | 4 ohms nominal, 2.6 ohms minimum (measured, Erin's Audio Corner) |
| Sensitivity | 85.6dB (measured, Erin's Audio Corner) |
| Weight | 18.5 lbs / 8.4 kg each |
| Woofer Cabinet | passive radiator |
- Links
- Reviews, Comparisons and Sound Samples
- Erin’s Audio Corner: STOP Wasting Money on Bad Speakers – AsciLab C6B Review More from Erin’s Audio Corner →
- Erin’s Audio Corner: I Tested 250 Speakers So You Don’t Have To!
- Erin’s Audio Corner Website: AsciLab C6B
- Erin’s Audio Corner Measurements (spinorama.org)
- Reddit Search for AsciLab C6B Review
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- AsciLab C6B vs KEF Q Concerto Meta
- AsciLab C6B vs MoFi SourcePoint 8
- AsciLab C6B vs GR-Research NX-Bravo
- AsciLab C6B vs MoFi SourcePoint 10
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