Short answer: the 8330A for deeper extension, the 8020D for tighter directivity tracking. The 8330A delivers a measured 55.7Hz extension point, well beyond the 8320A’s smaller cabinet, but its 0.324dB average on-axis deviation is rough and listening window smoothness is a moderate 0.38. The 8020D is flat from about 60Hz to 10kHz with listening-window and early-reflections curves tracking closely, though sound power rolls off around 500Hz-1kHz.
The case for the Genelec 8330A: Sits between the compact 8320A and the larger 8331A in Genelec’s SAM lineup, with a die cast aluminum Minimum Diffraction Enclosure and Directivity Control Waveguide that deliver a measured 55.7Hz extension point, well beyond the 8320A’s smaller cabinet. Watch for: On axis deviation measures 0.324dB average, rougher than several similarly priced monitors in this catalog, and listening window smoothness sits at a moderate 0.38.
Buy the Genelec 8330A. It is rated higher for sound quality, and the $860 saving on the Genelec 8020D is not enough to make up the difference.
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Specifications Side By Side
| Genelec 8330A | Genelec 8020D | |
|---|---|---|
| Price | $2,250 per pair | $1,390 per pair |
| Ranked | #7 of 68 in Medium Size Powered Bookshelf Speakers | #11 of 68 in Medium Size Powered Bookshelf Speakers |
| Enclosure | ported | - |
| Drivers | 0.75” metal dome tweeter, 5.1” cone woofer | 4.1” woofer, 0.75” metal dome tweeter |
| Dimensions | 11.8”H x 7.4”W x 7”D (299 x 189 x 178 mm) | 9.5”H x 5.8”W x 5.6”D (241.3 x 147.3 x 142.2 mm) |
| Weight | 11.2 lbs (5.1 kg) each | 7.1 lbs (3.2 kg) each |
| Amplifier Power | 100W total (50W woofer, 50W tweeter, Class D) | 100W (50W woofer + 50W tweeter) |
| Frequency Response | 45Hz-23kHz -6dB | 56 Hz - 25 kHz (-6 dB) (Manufacturer specified) |
| Bass Extension (-3dB) | 55.7Hz (measured, Audio Science Review) | 56Hz (measured, Audio Science Review) |
| Bass Extension (-10dB) | 44.9Hz (measured, Audio Science Review) | 50Hz (measured, Audio Science Review) |
| Warranty | 2 years (5 with product registration) | - |
| Country | Finland | - |
| Maximum SPL | 104dB (manufacturer specified) | 103dB @ 1m (manufacturer specified) |
| Spinorama Preference Score | 5.54 | - |
| Spinorama Preference Score with Perfect Sub | 7.79 | - |
| Inputs | XLR, AES/EBU | XLR |
| XLR Input | Yes | Yes |
| RCA Input | No | No |
| TRS Input | No | No |
| Optical Input | No | No |
| Coaxial Input | No | No |
| USB Input | No | No |
| HDMI Input | No | No |
| AES Input | Yes | No |
| Aux Input | No | No |
| Bluetooth | No | No |
| App | - | No |
| EQ | - | Yes (Bass tilt, desk proximity) |
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Prices on this page were last checked October 3, 2026 at 10:26 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 8330A: $2,250 per pair B&H Photo Video eBay
Pros: ASR’s measurements give a 2.3dB midrange response span and a -3dB point around 56Hz. Scores of 5.54 standalone and 7.79 with an ideal subwoofer indicate solid tonal accuracy, while deeper bass than the 8320A helps without a sub. GLM calibration, the waveguide and rounded aluminum enclosure make it a practical compact studio system. Measured bass extension of 55.7Hz (-3dB).
Cons: The listening-window response has more local variation than the 8030C or KH80 in the selected measurements, so DSP capability should not be mistaken for superior native neutrality. GLM calibration hardware costs extra. Small-driver bass headroom remains finite, and neither the modeled ideal-subwoofer score nor the fitted bass Q establishes maximum output or freedom from resonances.
Full Genelec 8330A review and specifications →
| AES Input | Yes |
|---|---|
| Amplifier Power | 100W total (50W woofer, 50W tweeter, Class D) |
| Aux Input | No |
| Bass Extension (-10dB) | 44.9Hz (measured, Audio Science Review) |
| Bass Extension (-3dB) | 55.7Hz (measured, Audio Science Review) |
| Bluetooth | No |
| Coaxial Input | No |
| Country | Finland |
| Dimensions | 11.8”H x 7.4”W x 7”D (299 x 189 x 178 mm) |
| Drivers | 0.75” metal dome tweeter, 5.1” cone woofer |
| Enclosure | ported |
| Frequency Response | 45Hz-23kHz -6dB |
| HDMI Input | No |
| Inputs | XLR, AES/EBU |
| Maximum SPL | 104dB (manufacturer specified) |
| Optical Input | No |
| RCA Input | No |
| Spinorama Preference Score | 5.54 |
| Spinorama Preference Score with Perfect Sub | 7.79 |
| TRS Input | No |
| USB Input | No |
| Warranty | 2 years (5 with product registration) |
| Weight | 11.2 lbs (5.1 kg) each |
| XLR Input | Yes |
- Links
- Reviews, Comparisons and Sound Samples
- Head-to-Head Comparisons
Genelec 8020D: $1,390 per pair B&H Photo Video eBay
Pros: A compact waveguided monitor with balanced XLR input and placement filters, well suited to a small studio desk. Klippel measurements show a flat, well-behaved on-axis response from about 60Hz to 10kHz, with listening-window and early-reflection curves tracking closely, a sign of well-controlled directivity. Measured bass extension of 56Hz (-3dB).
Cons: Small size limits deep-bass reach and headroom. It lacks the GLM calibration of the SAM models, and the price is substantial for a compact analog-input monitor. Sound power starts rolling off around 500Hz to 1kHz as the small drivers begin to beam.
Full Genelec 8020D review and specifications →
| AES Input | No |
|---|---|
| Amplifier Power | 100W (50W woofer + 50W tweeter) |
| App | No |
| Aux Input | No |
| Bass Extension (-10dB) | 50Hz (measured, Audio Science Review) |
| Bass Extension (-3dB) | 56Hz (measured, Audio Science Review) |
| Bluetooth | No |
| Coaxial Input | No |
| Dimensions | 9.5”H x 5.8”W x 5.6”D (241.3 x 147.3 x 142.2 mm) |
| Drivers | 4.1” woofer, 0.75” metal dome tweeter |
| EQ | Yes (Bass tilt, desk proximity) |
| Frequency Response | 56 Hz - 25 kHz (-6 dB) (Manufacturer specified) |
| HDMI Input | No |
| Inputs | XLR |
| Maximum SPL | 103dB @ 1m (manufacturer specified) |
| Optical Input | No |
| RCA Input | No |
| TRS Input | No |
| USB Input | No |
| Weight | 7.1 lbs (3.2 kg) each |
| XLR Input | Yes |
- Links
- Reviews, Comparisons and Sound Samples
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