Short answer: the Adam Audio S2V. It ranks #16 of 113 powered bookshelf speakers by sound quality (rated 4.6/5) at $3,399.98 and is still sold new; the JBL 4329P ranks #71 (rated 4.1/5) and is discontinued, so it is only an option used.
The JBL 4329P is the deeper-bass option. Measured -3dB extension of 32.2Hz provides deeper native bass than the smaller 4305P. Its bass reaches about 31Hz before falling 3dB, against 52.7Hz for the Adam Audio S2V. It keeps a wired aux input, which the Adam Audio S2V lacks. The tradeoff: 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.
The Adam Audio S2V is the better-sounding choice. A 7.98 ideal-subwoofer score and relatively even listening-window response support a strong role as a subwoofer-assisted studio monitor. Watch for: Measured -3dB extension is 52.7Hz, so the large cabinet does not automatically deliver the deepest bass here.
Buy the Adam Audio S2V. 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
| JBL 4329P | Adam Audio S2V | |
|---|---|---|
| Price | $4,500 per pair Discontinued | $3,399.98 per pair |
| Ranked | #71 of 113 in Large Size Powered Bookshelf Speakers | #16 of 113 in Large Size Powered Bookshelf Speakers |
| Drivers | 8” midwoofer, 1” compression driver with JBL High-Definition Imaging horn | 7” woofer, S-ART AMT tweeter |
| Dimensions | 20.3”H x 12.6”W x 12.7”D | 13.6” x 8.7” x 13.3” (346 x 222 x 338 mm) (H x W x D) |
| Weight | 34.4 lbs (15.6 kg) (primary), 34.4 lbs (15.6 kg) (secondary) | 24.3 lbs (11.0 kg) |
| Sensitivity | 102.2dB (measured at 0.3V/1m, Erin’s Audio Corner) | - |
| Bass Extension (-3dB) | 31Hz (measured, Erin’s Audio Corner) | 52.7Hz (measured, Audio Science Review) |
| Bass Extension (-10dB) | 27Hz (measured, Erin’s Audio Corner) | 41.2Hz (derived, log-interpolated between spinorama.org -9dB/-12dB points) |
| Frequency Response | 30Hz - 20kHz (anechoic, manufacturer specified) | 35Hz - 50kHz (Manufacturer specified) |
| Inputs | USB, Optical, Bluetooth, Analog, 3.5mm, AirPlay 2 | XLR, AES/EBU |
| Bluetooth Codecs | SBC, aptX Adaptive | - |
| Woofer Cabinet | ported | - |
| Spinorama Preference Score | 5.40 | 5.84 |
| Spinorama Preference Score with Perfect Sub | 6.72 | 7.98 |
| 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 | Yes |
| Aux Input | Yes | No |
| Amplifier Power | 300W RMS per speaker (600W total system power) | 350W total (300W woofer Class D, 50W tweeter Class A/B) |
| Bluetooth | Yes | No |
| Bluetooth Version | 5.3 | - |
| App | - | Yes |
| EQ | - | No |
| DSP | - | Yes |
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- JBL 308P MKII vs Adam Audio S2V
- Yamaha HS8 vs Adam Audio S2V
Prices on this page were last checked October 7, 2026 at 9:25 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 |
| Bluetooth Codecs | SBC, aptX Adaptive |
| Bluetooth Version | 5.3 |
| 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
Adam Audio S2V: $3,399.98 per pair Amazon eBay
Same family: the ADAM Audio S3V (larger bookshelf, ranked lower, estimated 4.5/5), the ADAM Audio S3H (larger bookshelf, ranked lower, estimated 4.5/5), the ADAM Audio S5V (larger bookshelf, ranked lower, estimated 4.4/5) and the ADAM Audio S5H (larger bookshelf, ranked lower, estimated 4.4/5).
Pros: A 7.98 ideal-subwoofer score and relatively even listening-window response support a strong role as a subwoofer-assisted studio monitor. The review’s low-distortion findings add useful evidence beyond amplifier ratings, and onboard DSP permits tailored adjustment. The review measured distortion about 70dB below the signal at 1kHz. Measured bass extension of 52.7Hz (-3dB).
Cons: Measured -3dB extension is 52.7Hz, so the large cabinet does not automatically deliver the deepest bass here. The native balance rises toward the treble, with some lower-midrange unevenness. DSP can improve that balance, but an EQ-optimized result is not its unadjusted performance.
Full Adam Audio S2V review and specifications →
| AES Input | Yes |
|---|---|
| Amplifier Power | 350W total (300W woofer Class D, 50W tweeter Class A/B) |
| App | Yes |
| Aux Input | No |
| Bass Extension (-10dB) | 41.2Hz (derived, log-interpolated between spinorama.org -9dB/-12dB points) |
| Bass Extension (-3dB) | 52.7Hz (measured, Audio Science Review) |
| Bluetooth | No |
| Coaxial Input | No |
| DSP | Yes |
| Dimensions | 13.6” x 8.7” x 13.3” (346 x 222 x 338 mm) (H x W x D) |
| Drivers | 7” woofer, S-ART AMT tweeter |
| EQ | No |
| Frequency Response | 35Hz - 50kHz (Manufacturer specified) |
| HDMI Input | No |
| Inputs | XLR, AES/EBU |
| Optical Input | No |
| RCA Input | No |
| Spinorama Preference Score | 5.84 |
| Spinorama Preference Score with Perfect Sub | 7.98 |
| TRS Input | No |
| USB Input | No |
| Weight | 24.3 lbs (11.0 kg) |
| XLR Input | Yes |
- Links
- Reviews, Comparisons and Sound Samples
- Head-to-Head Comparisons