Short answer: the JBL 4305P. It ranks #40 of 119 powered bookshelf speakers by sound quality (rated 4.4/5) at $1,499.99 and is still sold new; the JBL 4329P ranks #73 (rated 4.1/5) and is discontinued, so it is only an option used.
The JBL 4305P is the better-sounding option. Powered speakers with studio accuracy plus streaming, optical and USB inputs, made for a living room or desk. Watch for: Crossover-region directivity changes mean the narrow on-axis span does not describe every listening angle.
The JBL 4329P is the deeper-bass option. Discontinued powered horn speakers with deep bass, streaming, and Bluetooth, a convenient full range living room system. Its bass reaches about 31Hz before falling 3dB, against 45Hz for the JBL 4305P. The catch: 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.
Buy the JBL 4305P. It is rated higher for sound quality and still sold new, while the JBL 4329P is discontinued.
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Measured Differences
- Bass depth: the JBL 4329P reaches 27 Hz (10 dB down) against 40.5 Hz for the JBL 4305P, about half an octave deeper. You hear more of the lowest bass notes and kick drums.
- Tonal accuracy above the bass: with a subwoofer taking the low end, the JBL 4305P scores 7.5 against 6.7 for the JBL 4329P on the Spinorama preference scale. Its frequency response and off-axis sound are smoother, so voices and instruments sound closer to the recording.
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Specifications Side By Side
| JBL 4305P | JBL 4329P | |
|---|---|---|
| Price | $1,499.99 per pair | $4,500 per pair Discontinued |
| Ranked | #40 of 119 in Large Size Powered Bookshelf Speakers | #73 of 119 in Large Size Powered Bookshelf Speakers |
| Bass Extension (-3dB) | 45Hz (measured, Erin’s Audio Corner) | 31Hz (measured, Erin’s Audio Corner) |
| Bass Extension (-10dB) | 40.5Hz (measured, Erin’s Audio Corner) | 27Hz (measured, Erin’s Audio Corner) |
| Maximum SPL | ~93dB at 2m in-room before limiting (measured, Erin’s Audio Corner) | - |
| Amplifier Power | 300W system: 125W LF + 25W HF per speaker | 300W RMS per speaker (600W total system power) |
| Drivers | 5.25-inch pulp woofer; 1-inch annular compression driver | 8” midwoofer, 1” compression driver with JBL High-Definition Imaging horn |
| Dimensions | 13.2H x 8.3W x 8.8D inches | 20.3”H x 12.6”W x 12.7”D |
| Spinorama Preference Score | 5.44 | 5.40 |
| Spinorama Preference Score with Perfect Sub | 7.45 | 6.72 |
| Inputs | XLR/TRS combo, 3.5mm Aux, Optical, USB-B, Ethernet | USB, Optical, Bluetooth, Analog, 3.5mm, AirPlay 2 |
| XLR Input | Yes | No |
| RCA Input | No | No |
| TRS Input | Yes | No |
| Optical Input | Yes | Yes |
| Coaxial Input | No | No |
| USB Input | Yes | Yes |
| HDMI Input | No | No |
| AES Input | No | No |
| Aux Input | Yes | Yes |
| Weight | Primary 14.6 lbs (6.6 kg), Secondary 14.1 lbs (6.4 kg) | 34.4 lbs (15.6 kg) (primary), 34.4 lbs (15.6 kg) (secondary) |
| Bluetooth | Yes | Yes |
| Bluetooth Version | 5.1 | 5.3 |
| Frequency Response | 45Hz - 25kHz (-6dB) (Manufacturer specified) | 30Hz - 20kHz (anechoic, manufacturer specified) |
| Sensitivity | - | 102.2dB (measured at 0.3V/1m, Erin’s Audio Corner) |
| Bluetooth Codecs | - | SBC, aptX Adaptive |
| Woofer Cabinet | - | ported |
Where the Ratings Come From
- JBL 4305P: Spinorama.org measurements and reviews by Erin’s Audio Corner video.
- JBL 4329P: Spinorama.org measurements and reviews by Erin’s Audio Corner.
This comparison is generated from the ratings, specifications and measurements on each product’s own page, and it updates when that data changes. How we rank explains how each rating is decided.
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