Short answer: the Infinity IL10. It ranks #84 of 131 bookshelf speakers by sound quality, rated 3.5/5, at $160. The Dayton Audio MK602X ranks #122, rated 2.4/5, at $149, $11 cheaper, a saving that is not big enough to make up the sound-quality gap.
The case for the Infinity IL10: Impressively flat for a budget bookshelf. The tradeoff: Resonances at 600 and 5kHz, which show up as distinct distortion spikes at 96dB SPL/1m in the same frequency regions.
What the Dayton Audio MK602X does well: Inexpensive, compact two-way with a 6.5-inch glass-fiber woofer and 1-inch silk dome. The tradeoff: The top end sits roughly 5dB above the midband, producing brightness that can masquerade as detail.
One note: the Infinity IL10 is discontinued and no longer widely available new.
Buy the Infinity IL10. It is rated higher for sound quality, and the $11 you would save on the Dayton Audio MK602X does not close the gap.
Looking for alternatives? See the complete Passive Home rankings.
Specifications Side By Side
| Infinity IL10 | Dayton Audio MK602X | |
|---|---|---|
| Price | $160 per pair used, Discontinued | $149 per pair Discontinued |
| Ranked | #84 of 131 in Large Size Bookshelf Speakers | #122 of 131 in Large Size Bookshelf Speakers |
| Bass Extension (-10dB) | 44Hz (measured, Audio Science Review) | 43Hz (measured, Erin’s Audio Corner) |
| Bass Extension (-3dB) | 59Hz (measured, Audio Science Review) | 72Hz (measured, Erin’s Audio Corner) |
| Impedance | 6 ohms | 4 ohms nominal (manufacturer specified; Erin’s impedance measurement confirms a low-impedance load) |
| Sensitivity | 86dB (measured, Audio Science Review) | Approximately 85dB/2.83V/1m (measured, Erin’s Audio Corner) |
| Drivers | 6.5” (165mm) woofer | 1” silk-dome tweeter; 6.5” glass-fiber midwoofer |
| Weight | 14.3 lbs (6.5 kg) | - |
| Dimensions | 15.6”H x 8.5”W x 11.5”D (397.0 x 216.0 x 292.0 mm) | 15.1”H x 8.6”W x 11.8”D |
| Woofer Cabinet | ported, rear | ported, rear |
| Spinorama Preference Score | 4.98 (spinorama.org) | 4.39 |
| Spinorama Preference Score with Perfect Sub | 7.34 (spinorama.org) | 6.91 |
| DIY Kit | No | No |
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Prices on this page were last checked September 30, 2026 at 2:57 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 |
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Dayton Audio MK602X: $149 per pair Discontinued eBay
Pros: Inexpensive, compact two-way with a 6.5-inch glass-fiber woofer and 1-inch silk dome. Erin measured respectable small-box extension (72Hz F3 and 43Hz F10) and roughly 85dB sensitivity. The cabinet and removable grille are tidy for the price, and the response can be made less bright with broad treble EQ when listening close to the reference axis. Measured bass extension of 72Hz (-3dB), with a measured sensitivity of 85dB.
Cons: The top end sits roughly 5dB above the midband, producing brightness that can masquerade as detail. More seriously, the low-order woofer filter creates a 4-5dB directivity discontinuity around 2kHz; because the reflected sound differs from the direct sound, equalization cannot fully fix it. Erin also found multiple resonances around 900Hz and rising distortion/compression from the woofer at higher levels. Its 4-ohm nominal load and modest 85dB measured sensitivity demand more amplifier current than the price suggests, while the 72Hz F3 makes a subwoofer advisable despite the relatively low F10. Discontinued.
Full Dayton Audio MK602X review and specifications →
| Bass Extension (-10dB) | 43Hz (measured, Erin’s Audio Corner) |
|---|---|
| Bass Extension (-3dB) | 72Hz (measured, Erin’s Audio Corner) |
| DIY Kit | No |
| Dimensions | 15.1”H x 8.6”W x 11.8”D |
| Drivers | 1” silk-dome tweeter; 6.5” glass-fiber midwoofer |
| Impedance | 4 ohms nominal (manufacturer specified; Erin’s impedance measurement confirms a low-impedance load) |
| Sensitivity | Approximately 85dB/2.83V/1m (measured, Erin’s Audio Corner) |
| Spinorama Preference Score | 4.39 |
| Spinorama Preference Score with Perfect Sub | 6.91 |
| Woofer Cabinet | ported, rear |
- Links
- Reviews, Comparisons and Sound Samples
- Head-to-Head Comparisons