Short answer: the Genelec 8351B for even response, the JBL 4329P for full-range bass. The 8351B’s CEA2034 spinorama is exceptionally flat on and off axis, though deep bass distortion rises at 96dB SPL/1m and the reviewer notes deep bass suffers below about 100Hz. The 4329P extends to 30Hz anechoic with measured F3 of 31Hz and reaches the low 20s in-room, but it has no HDMI input for a TV’s ARC.
The case for the JBL 4329P: Genuinely full-range performance for a bookshelf-style speaker - anechoic response extends to 30Hz (measured F3 31Hz), reaching into the low 20s Hz range in-room depending on placement. The tradeoff: No HDMI input, a real drawback if you want to run these directly off a TV’s ARC.
Buy the Genelec 8351B. It is rated higher for sound quality; the JBL 4329P is no longer sold new.
Looking for alternatives? See the complete Powered Home rankings.
Specifications Side By Side
| Genelec 8351B | JBL 4329P | |
|---|---|---|
| Price | $9150 per pair | $4,500 per pair Discontinued |
| Ranked | #4 of 68 in Large Size Powered Bookshelf Speakers | #45 of 68 in Large Size Powered Bookshelf Speakers |
| Bass Extension (-10dB) | 28Hz (measured, Audio Science Review) | 27Hz (measured, Erin’s Audio Corner) |
| Bass Extension (-3dB) | 33Hz (measured, Audio Science Review) | 31Hz (measured, Erin’s Audio Corner) |
| Dimensions | 17”H x 11.3”W x 10.9”D (431.8 x 287 x 276.9 mm) | 20.3”H x 12.6”W x 12.7”D |
| Inputs | XLR | USB, Optical, Bluetooth, Analog, 3.5mm, AirPlay 2 |
| Weight | 31.1 lbs (14.1 kg) each | 34.4 lbs (15.6 kg) (primary), 34.4 lbs (15.6 kg) (secondary) |
| Drivers | 8.6” woofer, 5” coaxial with tweeter midrange, 0.75” (19mm) coaxial tweeter | 8” midwoofer, 1” compression driver with JBL High-Definition Imaging horn |
| App | Yes (GLM) | - |
| Bluetooth | No | Yes, 5.3 |
| DSP | Yes | - |
| EQ | Yes (via GLM software) | - |
| Frequency Response | 32Hz - 40kHz (±1.5dB) (Manufacturer specified) | 30Hz - 20kHz (anechoic, manufacturer specified) |
| Amplifier Power | 550w Per Speaker | 300W RMS per speaker (600W total system power) |
| Maximum SPL | 113dB @ 1m (manufacturer specified) | - |
| XLR Input | Yes | No |
| RCA Input | No | No |
| TRS Input | No | No |
| Optical Input | No | Yes |
| Coaxial Input | No | No |
| USB Input | No | Yes |
| HDMI Input | No | No |
| AES Input | No | No |
| Aux Input | No | Yes |
| Sensitivity | - | 102.2dB (measured at 0.3V/1m, Erin’s Audio Corner) |
| Bluetooth Codecs | - | SBC, aptX Adaptive |
| Woofer Cabinet | - | ported |
| Spinorama Preference Score | - | 5.40 |
| Spinorama Preference Score with Perfect Sub | - | 6.72 |
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- Genelec 8351B vs Neumann KH 310 A
Prices on this page were last checked October 2, 2026 at 10:18 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
- Genelec 8351B vs Neumann KH420
- Genelec 8351B vs Genelec 8361A
- Genelec 8351B vs Neumann KH 150
- Genelec 8351B vs Aalto Speakers Aalto 3 Active Pro
- Genelec 8351B vs Neumann KH 310 A
- Genelec 8351B vs HEDD Type 20 MK2
- Genelec 8351B vs SHIVAUDYO Point Zero
- Genelec 8351B vs JBL 308P MKII
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JBL 4329P: $4,500 per pair Discontinued eBay
Pros: Measured -3dB extension of 32.2Hz provides deeper native bass than the smaller 4305P. Integrated amplification and streaming make it convenient for a full-range living-room system, and its larger format is useful when scale matters. Measured bass extension of 31Hz (-3dB), with a measured sensitivity of 102.2dB.
Cons: The measured 4.5dB response span from 300Hz to 5kHz includes a notable midrange dip, so it is not as neutral as its size and price might suggest. Its 6.72 ideal-subwoofer score trails the 4305P. There is no HDMI connection for the simplest TV hookup. Discontinued.
Full JBL 4329P review and specifications →
| AES Input | No |
|---|---|
| Amplifier Power | 300W RMS per speaker (600W total system power) |
| Aux Input | Yes |
| Bass Extension (-10dB) | 27Hz (measured, Erin’s Audio Corner) |
| Bass Extension (-3dB) | 31Hz (measured, Erin’s Audio Corner) |
| Bluetooth | Yes, 5.3 |
| Bluetooth Codecs | SBC, aptX Adaptive |
| Coaxial Input | No |
| Dimensions | 20.3”H x 12.6”W x 12.7”D |
| Drivers | 8” midwoofer, 1” compression driver with JBL High-Definition Imaging horn |
| Frequency Response | 30Hz - 20kHz (anechoic, manufacturer specified) |
| HDMI Input | No |
| Inputs | USB, Optical, Bluetooth, Analog, 3.5mm, AirPlay 2 |
| Optical Input | Yes |
| RCA Input | No |
| Sensitivity | 102.2dB (measured at 0.3V/1m, Erin’s Audio Corner) |
| Spinorama Preference Score | 5.40 |
| Spinorama Preference Score with Perfect Sub | 6.72 |
| TRS Input | No |
| USB Input | Yes |
| Weight | 34.4 lbs (15.6 kg) (primary), 34.4 lbs (15.6 kg) (secondary) |
| Woofer Cabinet | ported |
| XLR Input | No |
- Links
- Reviews, Comparisons and Sound Samples
- Head-to-Head Comparisons