Short answer: the Genelec 8351B. It ranks #4 of 68 powered bookshelf speakers by sound quality (rated 4.8/5); the Aalto Speakers Aalto 3 Active Pro ranks #10 (rated 4.7/5).
What the Genelec 8351B does well: The vertical ASR measurement scores 7.75 with an ideal subwoofer and reaches 35.2Hz at -3dB. Watch for: Bass distortion increases at higher playback levels, so a subwoofer remains useful for demanding material.
Why pick the Aalto Speakers Aalto 3 Active Pro: The manufacturer dataset reports a remarkably even 0.7dB response span from 300Hz to 5kHz, 34.6Hz -3dB extension and an 8.90 ideal-subwoofer preference score. Watch for: External amplification and system setup make this less straightforward than a self-contained desktop pair.
Buy the Genelec 8351B. It is rated higher for sound quality than the Aalto Speakers Aalto 3 Active Pro.
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Specifications Side By Side
| Genelec 8351B | Aalto Speakers Aalto 3 Active Pro | |
|---|---|---|
| Price | $9150 per pair | $5,930 per pair |
| Ranked | #4 of 68 in Large Size Powered Bookshelf Speakers | #10 of 68 in Large Size Powered Bookshelf Speakers |
| Bass Extension (-10dB) | 28Hz (measured, Audio Science Review) | - |
| Bass Extension (-3dB) | 33Hz (measured, Audio Science Review) | - |
| Dimensions | 17”H x 11.3”W x 10.9”D (431.8 x 287 x 276.9 mm) | 9.4”W x 15.7”H x 9.8”D (240 x 400 x 250 mm) |
| Inputs | XLR | Analogue XLR, AES/EBU XLR, USB Type B |
| Weight | 31.1 lbs (14.1 kg) each | 19.8 lbs (9 kg) each |
| Drivers | 8.6” woofer, 5” coaxial with tweeter midrange, 0.75” (19mm) coaxial tweeter | 26mm aluminum dome tweeter, 6.5” long-stroke bass-midrange, 8” passive radiator |
| App | Yes (GLM) | - |
| Bluetooth | No | No |
| DSP | Yes | FourAudio System Software (Windows/macOS) |
| EQ | Yes (via GLM software) | - |
| Frequency Response | 32Hz - 40kHz (±1.5dB) (Manufacturer specified) | 31-23,500Hz (-6dB) |
| Amplifier Power | 550w Per Speaker | 4x 245W (external amplifier module, Speakon connection) |
| Maximum SPL | 113dB @ 1m (manufacturer specified) | - |
| XLR Input | Yes | Yes |
| RCA Input | No | No |
| TRS Input | No | No |
| Optical Input | No | No |
| Coaxial Input | No | No |
| USB Input | No | Yes |
| HDMI Input | No | No |
| AES Input | No | Yes |
| Aux Input | No | No |
| Enclosure | - | 2-way active, passive-radiator loaded, MDF |
| Country | - | Finland |
| Spinorama Preference Score | - | 7.49 |
| Spinorama Preference Score with Perfect Sub | - | 8.90 |
Related Speaker Comparisons
More worthwhile head-to-heads for Genelec 8351B:
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- Genelec 8351B vs Genelec 8361A
- Genelec 8351B vs Neumann KH 150
- Genelec 8351B vs Neumann KH 310 A
- Genelec 8351B vs HEDD Type 20 MK2
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 8351B: $9150 per pair B&H Photo Video eBay
Pros: The vertical ASR measurement scores 7.75 with an ideal subwoofer and reaches 35.2Hz at -3dB. Coaxial midrange and treble help maintain consistent sound as the listening angle changes. Low measured distortion at ordinary listening levels and GLM calibration make it a strong precision-monitoring choice. Measured bass extension of 33Hz (-3dB).
Cons: Bass distortion increases at higher playback levels, so a subwoofer remains useful for demanding material. Upper-treble distortion in the test also cautions against assuming unlimited output. Calibration hardware adds to an already expensive system, and the quoted result is for the measured vertical orientation.
Full Genelec 8351B review and specifications →
| AES Input | No |
|---|---|
| Amplifier Power | 550w Per Speaker |
| App | Yes (GLM) |
| Aux Input | No |
| Bass Extension (-10dB) | 28Hz (measured, Audio Science Review) |
| Bass Extension (-3dB) | 33Hz (measured, Audio Science Review) |
| Bluetooth | No |
| Coaxial Input | No |
| DSP | Yes |
| Dimensions | 17”H x 11.3”W x 10.9”D (431.8 x 287 x 276.9 mm) |
| Drivers | 8.6” woofer, 5” coaxial with tweeter midrange, 0.75” (19mm) coaxial tweeter |
| EQ | Yes (via GLM software) |
| Frequency Response | 32Hz - 40kHz (±1.5dB) (Manufacturer specified) |
| HDMI Input | No |
| Inputs | XLR |
| Maximum SPL | 113dB @ 1m (manufacturer specified) |
| Optical Input | No |
| RCA Input | No |
| TRS Input | No |
| USB Input | No |
| Weight | 31.1 lbs (14.1 kg) each |
| XLR Input | Yes |
- Links
- Reviews, Comparisons and Sound Samples
- Head-to-Head Comparisons
Aalto Speakers Aalto 3 Active Pro: $5,930 per pair Aalto Speakers eBay
Pros: The manufacturer dataset reports a remarkably even 0.7dB response span from 300Hz to 5kHz, 34.6Hz -3dB extension and an 8.90 ideal-subwoofer preference score. If representative of the delivered system, this promises exceptionally neutral balance with useful bass reach.
Cons: External amplification and system setup make this less straightforward than a self-contained desktop pair.
Full Aalto Speakers Aalto 3 Active Pro review and specifications →
| AES Input | Yes |
|---|---|
| Amplifier Power | 4x 245W (external amplifier module, Speakon connection) |
| Aux Input | No |
| Bluetooth | No |
| Coaxial Input | No |
| Country | Finland |
| DSP | FourAudio System Software (Windows/macOS) |
| Dimensions | 9.4”W x 15.7”H x 9.8”D (240 x 400 x 250 mm) |
| Drivers | 26mm aluminum dome tweeter, 6.5” long-stroke bass-midrange, 8” passive radiator |
| Enclosure | 2-way active, passive-radiator loaded, MDF |
| Frequency Response | 31-23,500Hz (-6dB) |
| HDMI Input | No |
| Inputs | Analogue XLR, AES/EBU XLR, USB Type B |
| Optical Input | No |
| RCA Input | No |
| Spinorama Preference Score | 7.49 |
| Spinorama Preference Score with Perfect Sub | 8.90 |
| TRS Input | No |
| USB Input | Yes |
| Weight | 19.8 lbs (9 kg) each |
| XLR Input | Yes |
- Links
- Reviews, Comparisons and Sound Samples
- Head-to-Head Comparisons