Short answer: the JBL 4329P for better sound quality, the Focal Twin6 Be for the lower price. The JBL 4329P ranks #18 of 31 powered bookshelf speakers at $4500. The Focal Twin6 Be ranks #30 at $2200, $2300 cheaper.
What the JBL 4329P offers: 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… Watch for: No HDMI input, a real drawback if you want to run these directly off a TV’s ARC.
What the Focal Twin6 Be offers: High-output 2.5-way studio monitor with an inverted beryllium tweeter and two 6.5-inch W-composite drivers, one covering bass/midrange and the other reinforcing only 40-150Hz. Watch for: The response and directivity are not as uniformly neutral as newer waveguided three-way monitors, and Erin suspected intermodulation-related roughness even though conventional harmonic distortion was low.
Buy the JBL 4329P if sound quality matters more than the price. Buy the Focal Twin6 Be if the price matters more than sound quality.
If sound quality matters at all to you, skip the Focal Twin6 Be. It ranks near the bottom of the 31 powered bookshelf speakers, so look higher up the list instead.
Specifications Side By Side
| JBL 4329P | Focal Twin6 Be | |
|---|---|---|
| Price | $4,500 | $2,200 each |
| Ranked | #18 of 31 in Large Size Powered Bookshelf Speakers | #30 of 31 in Large Size Powered Bookshelf Speakers |
| Drivers | 8" midwoofer, 1" compression driver with JBL High-Definition Imaging horn | 1" inverted beryllium tweeter; dual 6.5" W-cone drivers |
| Dimensions | 20.3"H x 12.6"W x 12.7"D | - |
| Weight | 34.5 lbs (primary), 34.3 lbs (secondary) | - |
| Sensitivity | 102.2dB (measured at 0.3V/1m, Erin’s Audio Corner) | Not applicable (active studio monitor) |
| Bass Extension (-3dB) | 31Hz (measured, Erin’s Audio Corner) | - |
| Bass Extension (-10dB) | 27Hz (measured, Erin’s Audio Corner) | - |
| Frequency Response | 30Hz - 20kHz (anechoic, manufacturer specified) | - |
| Inputs | USB, Optical, Bluetooth, Analog, 3.5mm, AirPlay 2 | Balanced XLR with +4dBu/-10dBV sensitivity |
| Woofer Cabinet | ported | - |
| Bass Extension | - | 40Hz manufacturer specified; Erin measured strong low-frequency linearity |
| Amplification | - | 150W LF + 100W LF/MF + 100W HF |
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- Buchardt A500 vs Buchardt A10
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- JBL 4305P vs JBL 4329P
- Buchardt A500 vs Focal Twin6 Be
The Two Speakers In Full
JBL 4329P: $4,500 Amazon
Pros: 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. Wide, constant horizontal directivity through the midrange and into the treble (about ±60°, wider than most horn-loaded designs which tend to run closer to ±40°) gives a wide, stable stereo image without needing to toe the speakers out and lose top-end energy. The reviewer listened for an hour-long sessions repeatedly without listener fatigue, across two very different rooms, with consistently great results in both. Extensive connectivity: USB, Optical, Bluetooth, analog, 3.5mm, AirPlay 2, and 24-bit/192kHz support; comes with a remote.
Cons: No HDMI input, a real drawback if you want to run these directly off a TV’s ARC. The supplied ethernet link cable between the two speakers is short - workable at close range but not long enough for wider speaker placement, so budget for a longer aftermarket cable if your setup needs it. A dip around 900Hz shows up in the on-axis measurement that the reviewer couldn’t fully explain (ruled out the ports as the cause, suspects cabinet edge diffraction), though it wasn’t something that bothered him in listening. At $4,500/pair, this is a serious investment for a bookshelf-format speaker.
Full JBL 4329P review and specifications →
| Bass Extension (-10dB) | 27Hz (measured, Erin's Audio Corner) |
|---|---|
| Bass Extension (-3dB) | 31Hz (measured, Erin's Audio Corner) |
| 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) |
| Inputs | USB, Optical, Bluetooth, Analog, 3.5mm, AirPlay 2 |
| Sensitivity | 102.2dB (measured at 0.3V/1m, Erin's Audio Corner) |
| Weight | 34.5 lbs (primary), 34.3 lbs (secondary) |
| Woofer Cabinet | ported |
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Focal Twin6 Be: $2,200 each Amazon
Pros: High-output 2.5-way studio monitor with an inverted beryllium tweeter and two 6.5-inch W-composite drivers, one covering bass/midrange and the other reinforcing only 40-150Hz. Erin measured excellent harmonic distortion at both 86 and 96dB, essentially quarter-decibel dynamic compression and clean subjective output around 95dB. Mirror-configurable driver orientation, front ports, shelving/notch controls and switchable +4dBu/-10dBV input sensitivity support professional installation.
Cons: The response and directivity are not as uniformly neutral as newer waveguided three-way monitors, and Erin suspected intermodulation-related roughness even though conventional harmonic distortion was low. The amplifier plate becomes notably warm after extended operation. Hiss is more audible in -10dBV mode, and safe output can be deceptive because the speaker gives little audible warning before excessive exposure. The active design has no passive impedance or sensitivity figure; low-bass extension should be augmented for full-range mastering.
Full Focal Twin6 Be review and specifications →
| Amplification | 150W LF + 100W LF/MF + 100W HF |
|---|---|
| Bass Extension | 40Hz manufacturer specified; Erin measured strong low-frequency linearity |
| Drivers | 1" inverted beryllium tweeter; dual 6.5" W-cone drivers |
| Inputs | Balanced XLR with +4dBu/-10dBV sensitivity |
| Sensitivity | Not applicable (active studio monitor) |
As an eBay Partner, we may be compensated if you make a purchase.
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