Short answer: the Genelec 8331A. It ranks #1 of 68 powered bookshelf speakers by sound quality, rated 4.8/5, at $5,750. The Kali Audio SM-5 ranks #20, rated 4.2/5, at $3,000, $2,750 cheaper, not enough of a saving to outweigh the sound-quality gap.
What the Genelec 8331A does well: Erin’s Klippel measurements support its reference-monitor credentials: a 1.4dB response span from 300Hz to 5kHz, low listening-window and predicted-room irregularity, and preference scores of 6.57 standalone and 8.51 with an ideal subwoofer. The tradeoff: Expensive, with studio-oriented XLR connectivity rather than consumer streaming.
What the Kali Audio SM-5 does well: Erin’s measurements show bass reaching -3dB around 43Hz and a 2.8dB midrange response span. Watch for: Scores of 5.18 standalone and 7.13 with an ideal subwoofer are good but below the leading reference monitors, so its advanced driver layout does not justify a near-top ranking by itself.
Buy the Genelec 8331A. It is rated higher for sound quality, and the $2,750 saving on the Kali Audio SM-5 is not enough to make up the difference.
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Specifications Side By Side
| Genelec 8331A | Kali Audio SM-5 | |
|---|---|---|
| Price | $4,500 per pair | $3400 per pair |
| Ranked | #1 of 68 in Medium Size Powered Bookshelf Speakers | #20 of 68 in Medium Size Powered Bookshelf Speakers |
| Bass Extension (-3dB) | 49Hz (measured, Erin’s Audio Corner) | 45Hz (measured, Erin’s Audio Corner) |
| Bass Extension (-10dB) | 39Hz (measured, Erin’s Audio Corner) | 39Hz (measured, Erin’s Audio Corner) |
| Maximum SPL | 100dB at 3m before protection (measured, Erin’s Audio Corner) | 117dB (manufacturer specified) |
| Amplifier Power | 72W LF + 36W MF + 36W HF | 150W total |
| Drivers | Dual 130x65mm woofers; 90mm coaxial mid; 19mm tweeter | 1” coaxial tweeter, 4” coaxial midrange, 5” mid-bass woofer |
| Dimensions | 12”H x 7.4”W x 8.3”D (305 x 189 x 212 mm) | 15.7”H x 7.9”W x 9.8”D (400 x 200 x 250 mm) |
| Weight | 14.8 lbs (6.7kg) each | 20.9 lbs (9.5 kg) each |
| Spinorama Preference Score | 6.57 | 5.18 |
| Spinorama Preference Score with Perfect Sub | 8.51 | 7.13 |
| Inputs | XLR, AES/EBU | XLR/TRS, AES/EBU (BNC), RJ45 network control |
| XLR Input | Yes | Yes |
| RCA Input | No | No |
| TRS Input | No | Yes |
| Optical Input | No | No |
| Coaxial Input | No | No |
| USB Input | No | No |
| HDMI Input | No | No |
| AES Input | Yes | Yes |
| Aux Input | No | No |
| Bluetooth | No | No |
| Frequency Response | 45Hz - 37kHz (-6dB) (Manufacturer specified) | 39Hz - 35kHz ±10dB (47Hz - 21kHz ±3dB, Manufacturer specified) |
| App | - | Kali Audio DSP software (free download) |
| EQ | - | Yes, per-speaker DSP |
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Prices on this page were last checked September 29, 2026 at 3:43 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
Genelec 8331A: $4,500 per pair B&H Photo Video eBay
Pros: Erin’s Klippel measurements support its reference-monitor credentials: a 1.4dB response span from 300Hz to 5kHz, low listening-window and predicted-room irregularity, and preference scores of 6.57 standalone and 8.51 with an ideal subwoofer. The coaxial mid/tweeter and concealed woofers maintain coherent radiation as listening position changes. Bass reaches -3dB around 48Hz, and GLM adds level, delay and room-response calibration. Measured bass extension of 49Hz (-3dB).
Cons: Expensive, with studio-oriented XLR connectivity rather than consumer streaming. The compact woofers still limit deep-bass output, and the review reports protection muting when pushed beyond its operating range. GLM calibration hardware is an additional purchase. Its excellent tonal score does not remove the need for a subwoofer or larger monitor at demanding levels.
Full Genelec 8331A review and specifications →
| AES Input | Yes |
|---|---|
| Amplifier Power | 72W LF + 36W MF + 36W HF |
| Aux Input | No |
| Bass Extension (-10dB) | 39Hz (measured, Erin’s Audio Corner) |
| Bass Extension (-3dB) | 49Hz (measured, Erin’s Audio Corner) |
| Bluetooth | No |
| Coaxial Input | No |
| Dimensions | 12”H x 7.4”W x 8.3”D (305 x 189 x 212 mm) |
| Drivers | Dual 130x65mm woofers; 90mm coaxial mid; 19mm tweeter |
| Frequency Response | 45Hz - 37kHz (-6dB) (Manufacturer specified) |
| HDMI Input | No |
| Inputs | XLR, AES/EBU |
| Maximum SPL | 100dB at 3m before protection (measured, Erin’s Audio Corner) |
| Optical Input | No |
| RCA Input | No |
| Spinorama Preference Score | 6.57 |
| Spinorama Preference Score with Perfect Sub | 8.51 |
| TRS Input | No |
| USB Input | No |
| Weight | 14.8 lbs (6.7kg) each |
| XLR Input | Yes |
- Links
- Reviews, Comparisons and Sound Samples
- Head-to-Head Comparisons
Kali Audio SM-5: $3400 per pair B&H Photo Video eBay
Pros: Erin’s measurements show bass reaching -3dB around 43Hz and a 2.8dB midrange response span. The coaxial mid/tweeter and large waveguide give useful consistency horizontally and vertically, reducing sensitivity to listening height. Built-in per-speaker DSP and mounting options make placement flexible. Existing testing reports low midrange distortion at 96dB. Measured bass extension of 45Hz (-3dB).
Cons: Scores of 5.18 standalone and 7.13 with an ideal subwoofer are good but below the leading reference monitors, so its advanced driver layout does not justify a near-top ranking by itself. A small upper-midrange irregularity remains. The five-inch woofer and limiter constrain loud bass; the review places compression onset roughly in the 96-102dB/1m region.
Full Kali Audio SM-5 review and specifications →
| AES Input | Yes |
|---|---|
| Amplifier Power | 150W total |
| App | Kali Audio DSP software (free download) |
| Aux Input | No |
| Bass Extension (-10dB) | 39Hz (measured, Erin’s Audio Corner) |
| Bass Extension (-3dB) | 45Hz (measured, Erin’s Audio Corner) |
| Bluetooth | No |
| Coaxial Input | No |
| Dimensions | 15.7”H x 7.9”W x 9.8”D (400 x 200 x 250 mm) |
| Drivers | 1” coaxial tweeter, 4” coaxial midrange, 5” mid-bass woofer |
| EQ | Yes, per-speaker DSP |
| Frequency Response | 39Hz - 35kHz ±10dB (47Hz - 21kHz ±3dB, Manufacturer specified) |
| HDMI Input | No |
| Inputs | XLR/TRS, AES/EBU (BNC), RJ45 network control |
| Maximum SPL | 117dB (manufacturer specified) |
| Optical Input | No |
| RCA Input | No |
| Spinorama Preference Score | 5.18 |
| Spinorama Preference Score with Perfect Sub | 7.13 |
| TRS Input | Yes |
| USB Input | No |
| Weight | 20.9 lbs (9.5 kg) each |
| XLR Input | Yes |
- Links
- Reviews, Comparisons and Sound Samples
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