Short answer: the Focal Aria 906 for measured in-room response, the Infinity IL10 for budget flatness. The Aria 906’s CEA2034 spinorama shows very flat bass and predicted in-room response that is almost perfect prior to 1kHz, with the reviewer rating overall performance good, though there is a 3dB dip around 2.8kHz. The IL10 is impressively flat for a budget bookshelf, but its 600 and 5kHz resonances create distortion spikes at 96dB SPL/1m.
Buy the Infinity IL10 only if you find one used in good condition; both are discontinued, and it is the better rated of the two. For a new speaker, start with the AsciLab C6B instead.
Still deciding? The full Passive Home rankings cover every ranked option.
Specifications Side By Side
| Infinity IL10 | Focal Aria 906 | |
|---|---|---|
| Price | $160 per pair used, Discontinued | $2,199.00 per pair used, Discontinued |
| Ranked | #87 of 134 in Large Size Bookshelf Speakers | #97 of 134 in Large Size Bookshelf Speakers |
| Bass Extension (-10dB) | 44Hz (measured, Audio Science Review) | 47Hz (measured, Erin’s Audio Corner) |
| Bass Extension (-3dB) | 59Hz (measured, Audio Science Review) | 63Hz (measured, Erin’s Audio Corner) |
| Impedance | 6 ohms | 4 ohms nominal (4.8 ohms minimum above 80Hz, measured by Erin’s Audio Corner) |
| Sensitivity | 86dB (measured, Audio Science Review) | 86.5dB (measured average, Erin’s Audio Corner) |
| Drivers | 6.5” (165mm) woofer | 26mm tweeter + 165mm mid-woofer |
| Weight | 14.3 lbs (6.5 kg) | 39.9 lbs (18.1 kg) |
| Dimensions | 15.6”H x 8.5”W x 11.5”D (397.0 x 216.0 x 292.0 mm) | 15.4”H x 8.9”W x 11”D (390.0 x 225.0 x 280.0 mm) |
| Woofer Cabinet | ported, rear | ported, front |
| Spinorama Preference Score | 4.98 (spinorama.org) | 4.64 |
| Spinorama Preference Score with Perfect Sub | 7.34 (spinorama.org) | 7.00 |
| DIY Kit | No | No |
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Prices on this page were last checked October 2, 2026 at 10:18 PM 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
Infinity IL10: $160 per pair used Discontinued eBay
Pros: Impressively flat for a budget bookshelf. Predicted in-room response is good aside from a bit of excess energy here and there. Distortion at 96dB SPL/1m stays low and controlled outside two narrow resonance-driven peaks. Measured bass extension of 59Hz (-3dB), with a measured sensitivity of 86dB.
Cons: Resonances at 600 and 5kHz, which show up as distinct distortion spikes at 96dB SPL/1m in the same frequency regions. Discontinued.
Full Infinity IL10 review and specifications →
| Bass Extension (-10dB) | 44Hz (measured, Audio Science Review) |
|---|---|
| Bass Extension (-3dB) | 59Hz (measured, Audio Science Review) |
| DIY Kit | No |
| Dimensions | 15.6”H x 8.5”W x 11.5”D (397.0 x 216.0 x 292.0 mm) |
| Drivers | 6.5” (165mm) woofer |
| Impedance | 6 ohms |
| Sensitivity | 86dB (measured, Audio Science Review) |
| Spinorama Preference Score | 4.98 (spinorama.org) |
| Spinorama Preference Score with Perfect Sub | 7.34 (spinorama.org) |
| Weight | 14.3 lbs (6.5 kg) |
| Woofer Cabinet | ported, rear |
- Reviews, Comparisons and Sound Samples
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Focal Aria 906: $2,199.00 per pair used Discontinued Amazon eBay
Newer model: the Focal Aria Evo X N°1. It’s likely to perform similarly, though we don’t have measurements to confirm that yet.
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. Measured bass extension of 63Hz (-3dB), with a measured sensitivity of 86.5dB.
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) |
| DIY Kit | No |
| Dimensions | 15.4”H x 8.9”W x 11”D (390.0 x 225.0 x 280.0 mm) |
| 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) |
| Spinorama Preference Score | 4.64 |
| Spinorama Preference Score with Perfect Sub | 7.00 |
| Weight | 39.9 lbs (18.1 kg) |
| Woofer Cabinet | ported, front |
- Links
- Reviews, Comparisons and Sound Samples
- Head-to-Head Comparisons