Short answer: the Genelec 8320A for better sound quality, the Audioengine HD4 for the lower price. The Genelec 8320A ranks #9 of 64 powered bookshelf speakers at $850. The Audioengine HD4 ranks #54 at $429, $421 cheaper.
What the Genelec 8320A offers: The Directivity Control Waveguide and die cast aluminum Minimum Diffraction Enclosure produce a listening window smoothness score of 0.53 and a low frequency alignment Q of just 0.227, the cleanest, least resonant bass rolloff of any speaker in this whole batch. It network calibrates through Genelec’s GLM software for automatic room correction, and Intelligent Signal Sensing drops standby power to under 0.5W. Watch for: On axis deviation measures 0.169dB average, decent but not class leading next to the AsciLab and Audio Smile entries in this batch. The compact 4.1 inch woofer limits low frequency extension to a measured 67.4Hz at -3dB, so a subwoofer is needed for full range use. The GLM calibration kit that unlocks its room correction features is sold separately from the speaker price, and max SPL tops out around 100dB, modest next to Genelec’s larger 8000 series monitors.
What the Audioengine HD4 offers: Rated 3.3 in the SpeakerRanking database. Watch for: Not a great sounding speaker for the high price.
Buy the Genelec 8320A if sound quality matters more than the price. Buy the Audioengine HD4 if the price matters more than sound quality.
If sound quality matters at all to you, skip the Audioengine HD4. It ranks near the bottom of the 64 powered bookshelf speakers, so look higher up the list instead.
Specifications Side By Side
| Genelec 8320A | Audioengine HD4 | |
|---|---|---|
| Price | $850 each | $429.00 |
| Ranked | #9 of 64 in Medium Size Powered Bookshelf Speakers | #54 of 64 in Medium Size Powered Bookshelf Speakers |
| Enclosure | ported | - |
| Drivers | 0.75" metal dome tweeter, 4.1" cone woofer | 4" (102mm) woofer |
| Dimensions | 9.5"H x 5.9"W x 5.6"D (242 x 151 x 142 mm) (9.5 x 5.9 x 5.6 in) | 9"H x 5.5"W x 6.5"D (228.6 x 139.7 x 165.1 mm) |
| Weight | 7.1 lbs / 3.2 kg (7.1 lbs) each | 7.3 lbs / 3.3 kg |
| Power Output (Watts) | 100W total (50W woofer, 50W tweeter, Class D) | - |
| Frequency Response | 55Hz-23kHz -6dB | 60 Hz-20 kHz (-3dB) (Manufacturer specified) |
| Bass Extension (-3dB) | 67.4Hz (measured, Audio Science Review) | - |
| Bass Extension (-10dB) | 53.2Hz (measured, Audio Science Review) | - |
| Max SPL | Peak 107dB | - |
| Warranty | 2 years (5 with product registration) | - |
| Country | Finland | - |
| Inputs | - | Bluetooth, Aux, RCA Input |
| Outputs | - | RCA Output |
| App | - | No |
| Bluetooth | - | No |
| EQ | - | No |
| Output Power | - | 50w RMS Per Speaker |
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Prices on this page were last checked August 25, 2026 at 6:19 AM 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 8320A: $850 each Bhphotovideo eBay
Pros: The Directivity Control Waveguide and die cast aluminum Minimum Diffraction Enclosure produce a listening window smoothness score of 0.53 and a low frequency alignment Q of just 0.227, the cleanest, least resonant bass rolloff of any speaker in this whole batch. It network calibrates through Genelec’s GLM software for automatic room correction, and Intelligent Signal Sensing drops standby power to under 0.5W.
Cons: On axis deviation measures 0.169dB average, decent but not class leading next to the AsciLab and Audio Smile entries in this batch. The compact 4.1 inch woofer limits low frequency extension to a measured 67.4Hz at -3dB, so a subwoofer is needed for full range use. The GLM calibration kit that unlocks its room correction features is sold separately from the speaker price, and max SPL tops out around 100dB, modest next to Genelec’s larger 8000 series monitors.
Full Genelec 8320A review and specifications →
| Bass Extension (-10dB) | 53.2Hz (measured, Audio Science Review) |
|---|---|
| Bass Extension (-3dB) | 67.4Hz (measured, Audio Science Review) |
| Country | Finland |
| Dimensions | 9.5"H x 5.9"W x 5.6"D (242 x 151 x 142 mm) (9.5 x 5.9 x 5.6 in) |
| Drivers | 0.75" metal dome tweeter, 4.1" cone woofer |
| Enclosure | ported |
| Frequency Response | 55Hz-23kHz -6dB |
| Max SPL | Peak 107dB |
| Power Output (Watts) | 100W total (50W woofer, 50W tweeter, Class D) |
| Warranty | 2 years (5 with product registration) |
| Weight | 7.1 lbs / 3.2 kg (7.1 lbs) each |
- Links
- Reviews, Comparisons and Sound Samples
- Head-to-Head Comparisons
Audioengine HD4: $429.00 Amazon eBay
Cons: Not a great sounding speaker for the high price.
Full Audioengine HD4 review and specifications →
| App | No |
|---|---|
| Bluetooth | No |
| Dimensions | 9"H x 5.5"W x 6.5"D (228.6 x 139.7 x 165.1 mm) |
| Drivers | 4" (102mm) woofer |
| EQ | No |
| Frequency Response | 60 Hz-20 kHz (-3dB) (Manufacturer specified) |
| Inputs | Bluetooth, Aux, RCA Input |
| Output Power | 50w RMS Per Speaker |
| Outputs | RCA Output |
| Weight | 7.3 lbs / 3.3 kg |
- Links
- Reviews, Comparisons and Sound Samples
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