Short answer: the JBL 4329P for full-range bass authority; the Focal Solo6 ST6 for a low-distortion driver set. The 4329P extends to 30Hz anechoically with a measured F3 of 31Hz and strong bass authority, though it has no HDMI input. The Focal pairs a beryllium inverted-dome tweeter with a 6.5-inch W composite cone, but its bass alignment Q runs high, which can add fullness.
What the JBL 4329P gets right: 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, with strong bass authority rather than a rolled-off, thin low end. The tradeoff: No HDMI input, a real drawback if you want to run these directly off a TV’s ARC.
The case for the Focal Solo6 ST6: Beryllium inverted-dome tweeter over a 6.5” ‘W’ composite sandwich-cone woofer - a low-mass, low-distortion driver combination rarely found below far pricier monitors. The catch: Bass alignment Q is on the higher side, which can correlate with a touch of extra bass fullness/looseness versus a more critically-damped alignment.
Buy the Focal Solo6 ST6. It is rated higher for sound quality, and the JBL 4329P is discontinued, so it is only available used.
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Specifications Side By Side
| JBL 4329P | Focal Solo6 ST6 | |
|---|---|---|
| Price | $4,500 per pair Discontinued | $2,998 per pair |
| Ranked | #45 of 68 in Large Size Powered Bookshelf Speakers | #30 of 68 in Large Size Powered Bookshelf Speakers |
| Drivers | 8” midwoofer, 1” compression driver with JBL High-Definition Imaging horn | 1” Beryllium inverted-dome tweeter, 6.5” “W” composite sandwich-cone woofer |
| Dimensions | 20.3”H x 12.6”W x 12.7”D | 24.6 x 33.4 x 29.5cm (9.7 x 13.1 x 11.6 in) each, 13kg (28.6 lb) each |
| Weight | 34.4 lbs (15.6 kg) (primary), 34.4 lbs (15.6 kg) (secondary) | 28.7 lbs (13 kg) |
| Sensitivity | 102.2dB (measured at 0.3V/1m, Erin’s Audio Corner) | - |
| Bass Extension (-3dB) | 31Hz (measured, Erin’s Audio Corner) | 46.9Hz (measured, spinorama.org) |
| Bass Extension (-10dB) | 27Hz (measured, Erin’s Audio Corner) | 38.1Hz (measured, spinorama.org) |
| Frequency Response | 30Hz - 20kHz (anechoic, manufacturer specified) | 40Hz - 40kHz (±3dB) (Manufacturer specified) |
| Inputs | USB, Optical, Bluetooth, Analog, 3.5mm, AirPlay 2 | XLR |
| Bluetooth Codecs | SBC, aptX Adaptive | - |
| Woofer Cabinet | ported | - |
| Spinorama Preference Score | 5.40 | 5.32 |
| Spinorama Preference Score with Perfect Sub | 6.72 | 7.34 |
| XLR Input | No | Yes |
| RCA Input | No | No |
| TRS Input | No | No |
| Optical Input | Yes | No |
| Coaxial Input | No | No |
| USB Input | Yes | No |
| HDMI Input | No | No |
| AES Input | No | No |
| Aux Input | Yes | No |
| Amplifier Power | 300W RMS per speaker (600W total system power) | 130W total (80W LF + 50W HF); Bi-amped (Class G LF + Class AB HF) |
| Bluetooth | Yes, 5.3 | No |
| Maximum SPL | - | 110dB peak at 1m |
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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
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 |
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- Reviews, Comparisons and Sound Samples
- Head-to-Head Comparisons
Focal Solo6 ST6: $2,998 per pair B&H Photo Video eBay
Pros: ASR measured a tight 1.6dB response span from 300Hz to 5kHz and a 7.34 ideal-subwoofer score, supporting accurate midrange monitoring. The beryllium tweeter and Focus mode offer a useful professional workflow, with Focus serving as an alternate mix-check presentation. Its beryllium inverted-dome tweeter and 6.5-inch W composite sandwich-cone woofer are a low-mass, low-distortion pairing. Measured bass extension of 46.9Hz (-3dB).
Cons: The measured -3dB point is 46.9Hz, so deep-bass work benefits from a subwoofer. The standard-mode score does not apply to Focus mode. There is no automatic room-calibration system, and premium driver materials alone do not establish superior sound.
Full Focal Solo6 ST6 review and specifications →
| AES Input | No |
|---|---|
| Amplifier Power | 130W total (80W LF + 50W HF); Bi-amped (Class G LF + Class AB HF) |
| Aux Input | No |
| Bass Extension (-10dB) | 38.1Hz (measured, spinorama.org) |
| Bass Extension (-3dB) | 46.9Hz (measured, spinorama.org) |
| Bluetooth | No |
| Coaxial Input | No |
| Dimensions | 24.6 x 33.4 x 29.5cm (9.7 x 13.1 x 11.6 in) each, 13kg (28.6 lb) each |
| Drivers | 1” Beryllium inverted-dome tweeter, 6.5” “W” composite sandwich-cone woofer |
| Frequency Response | 40Hz - 40kHz (±3dB) (Manufacturer specified) |
| HDMI Input | No |
| Inputs | XLR |
| Maximum SPL | 110dB peak at 1m |
| Optical Input | No |
| RCA Input | No |
| Spinorama Preference Score | 5.32 |
| Spinorama Preference Score with Perfect Sub | 7.34 |
| TRS Input | No |
| USB Input | No |
| Weight | 28.7 lbs (13 kg) |
| XLR Input | Yes |
- Links
- Reviews, Comparisons and Sound Samples
- Head-to-Head Comparisons