Genelec 8330A vs Genelec 8320A

Last updated: October 1, 2026

Short answer: the Genelec 8320A. Both are rated 4.5/5 for sound quality (#8 and #7 of 68 powered bookshelf speakers), and the Genelec 8320A costs $1,700 against $2,250 for the Genelec 8330A, and with sound quality even, the cheaper one is the better buy.

Genelec 8330A vs Genelec 8320A

What the Genelec 8330A offers: 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. Set against that: 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.

What the Genelec 8320A gets right: 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. 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.

Buy the Genelec 8320A. Both are rated the same for sound quality, and it costs $550 less than the Genelec 8330A.

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Specifications Side By Side

Genelec 8330A Genelec 8320A
Price$2,250 per pair$1,700 per pair
Ranked#7 of 68 in Medium Size Powered Bookshelf Speakers#8 of 68 in Medium Size Powered Bookshelf Speakers
Enclosureportedported
Drivers0.75” metal dome tweeter, 5.1” cone woofer0.75” metal dome tweeter, 4.1” cone woofer
Dimensions11.8”H x 7.4”W x 7”D (299 x 189 x 178 mm)9.5”H x 5.9”W x 5.6”D (242 x 151 x 142 mm)
Weight11.2 lbs (5.1 kg) each7.1 lbs (3.2 kg) each
Amplifier Power100W total (50W woofer, 50W tweeter, Class D)100W total (50W woofer, 50W tweeter, Class D)
Frequency Response45Hz-23kHz -6dB55Hz-23kHz -6dB
Bass Extension (-3dB)55.7Hz (measured, Audio Science Review)67.4Hz (measured, Audio Science Review)
Bass Extension (-10dB)44.9Hz (measured, Audio Science Review)53.2Hz (measured, Audio Science Review)
Warranty2 years (5 with product registration)2 years (5 with product registration)
CountryFinlandFinland
Maximum SPL104dB (manufacturer specified)Peak 107dB (manufacturer specified)
Spinorama Preference Score5.545.52
Spinorama Preference Score with Perfect Sub7.798.04
InputsXLR, AES/EBUXLR
XLR InputYesYes
RCA InputNoNo
TRS InputNoNo
Optical InputNoNo
Coaxial InputNoNo
USB InputNoNo
HDMI InputNoNo
AES InputYesNo
Aux InputNoNo
BluetoothNoNo

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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

Genelec 8330A ranking card

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.

AES InputYes
Amplifier Power100W total (50W woofer, 50W tweeter, Class D)
Aux InputNo
Bass Extension (-10dB)44.9Hz (measured, Audio Science Review)
Bass Extension (-3dB)55.7Hz (measured, Audio Science Review)
BluetoothNo
Coaxial InputNo
CountryFinland
Dimensions11.8”H x 7.4”W x 7”D (299 x 189 x 178 mm)
Drivers0.75” metal dome tweeter, 5.1” cone woofer
Enclosureported
Frequency Response45Hz-23kHz -6dB
HDMI InputNo
InputsXLR, AES/EBU
Maximum SPL104dB (manufacturer specified)
Optical InputNo
RCA InputNo
Spinorama Preference Score5.54
Spinorama Preference Score with Perfect Sub7.79
TRS InputNo
USB InputNo
Warranty2 years (5 with product registration)
Weight11.2 lbs (5.1 kg) each
XLR InputYes

Genelec 8320A: $1,700 per pair B&H Photo Video eBay

Genelec 8320A ranking card

Pros: A measured 1.6dB span from 300Hz to 5kHz and preference scores of 5.52 standalone and 8.04 with an ideal subwoofer support accurate close-range monitoring. The waveguide helps control the balance between direct and reflected sound. GLM room calibration is useful for matching levels and placement in a compact setup. Measured bass extension of 67.4Hz (-3dB).

Cons: The -3dB point is about 67Hz, making a subwoofer important for lower bass and giving the larger 8330A a practical advantage without one. Calibration hardware is sold separately. The small woofer limits its intended listening distance and bass output; a favorable response-fit parameter is not evidence that it has uniquely well-damped bass or unusually high headroom.

AES InputNo
Amplifier Power100W total (50W woofer, 50W tweeter, Class D)
Aux InputNo
Bass Extension (-10dB)53.2Hz (measured, Audio Science Review)
Bass Extension (-3dB)67.4Hz (measured, Audio Science Review)
BluetoothNo
Coaxial InputNo
CountryFinland
Dimensions9.5”H x 5.9”W x 5.6”D (242 x 151 x 142 mm)
Drivers0.75” metal dome tweeter, 4.1” cone woofer
Enclosureported
Frequency Response55Hz-23kHz -6dB
HDMI InputNo
InputsXLR
Maximum SPLPeak 107dB (manufacturer specified)
Optical InputNo
RCA InputNo
Spinorama Preference Score5.52
Spinorama Preference Score with Perfect Sub8.04
TRS InputNo
USB InputNo
Warranty2 years (5 with product registration)
Weight7.1 lbs (3.2 kg) each
XLR InputYes