JBL 705P vs Genelec 8331A

Last updated: August 24, 2026

Short answer: the Genelec 8331A for better sound quality, the JBL 705P for the lower price. The Genelec 8331A ranks #1 of 58 powered bookshelf speakers at $5750. The JBL 705P ranks #22 at $1998, $3752 cheaper.

What the JBL 705P offers: CEA2034 spinorama shows flat response with excellent directivity, similar to its larger 708P sibling. Bi-amplified 500W design (250W woofer, 250W compression driver) into a 5” woofer and JBL’s 2409H compression tweeter. Watch for: A cancellation around 750Hz (likely port-related) and a bit of boosted response at the 1.75kHz crossover show up in the on-axis curve. Sits right around the ear’s most sensitive hearing range near 100Hz, so that region is partially audible even at modest levels.

What the Genelec 8331A offers: A true compact point source: the coaxial mid/tweeter and acoustically concealed opposed woofers produce exceptionally uniform directivity, superb nearfield summation and pinpoint imaging. Erin measured F3 at 49Hz and F10 at 39Hz, heard useful 40Hz in-room extension, and reached 100dB at 3m before protection activated. Response is highly neutral, distortion is low, and GLM provides calibrated level, delay and room-response correction. The die-cast aluminum waveguide/enclosure is both structurally inert and nearly diffraction-free. Watch for: At $4,500/pair it is expensive for a monitor whose protection circuit mutes near its limit rather than allowing short-term overload; larger rooms and bass-heavy playback still benefit from a subwoofer. GLM calibration requires separate network hardware, and connectivity is studio-centric—analog/AES XLR with no consumer streaming. The compact dual racetrack woofers cannot match larger Genelec Ones for deep-bass headroom, and passive sensitivity is not applicable because all filtering and amplification are internal.

Buy the JBL 705P if the price matters more than sound quality. Buy the Genelec 8331A if sound quality matters more than the price.

JBL 705P vs Genelec 8331A

Specifications Side By Side

JBL 705P Genelec 8331A
Price$1998$5750
Ranked#22 of 58 in Medium Size Powered Bookshelf Speakers#1 of 58 in Medium Size Powered Bookshelf Speakers
Bass Extension (-3dB)80Hz (measured, Audio Science Review)49Hz (measured, Erin’s Audio Corner)
Bass Extension (-10dB)62Hz (measured, Audio Science Review)39Hz (measured, Erin’s Audio Corner)
Dimensions10.6"H x 5.9"W x 10.8"D (268 x 151 x 274 mm)12"H x 7.4"W x 8.3"D (305 x 189 x 212 mm)
Frequency Response39Hz - 36kHz (Manufacturer specified)-
Weight12.6 lbs / 5.7 kg each14.8 lbs / 6.7kg each
Drivers5" woofer, 2409H 1" compression driverDual 130x65mm woofers; 90mm coaxial mid; 19mm tweeter
AppNo-
EQNo-
DSPNo-
Output Power500W total (250W woofer, 250W tweeter)-
Sensitivity-Not applicable (active DSP loudspeaker)
Maximum Output-100dB at 3m before protection (measured, Erin’s Audio Corner)
Amplification-72W LF + 36W MF + 36W HF

More useful head-to-heads from the same speaker class:

Prices on this page were last checked August 24, 2026 at 6:53 AM 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 705P: $1998 Bhphotovideo eBay

JBL 705P ranking card

Pros: CEA2034 spinorama shows flat response with excellent directivity, similar to its larger 708P sibling. Bi-amplified 500W design (250W woofer, 250W compression driver) into a 5” woofer and JBL’s 2409H compression tweeter.

Cons: A cancellation around 750Hz (likely port-related) and a bit of boosted response at the 1.75kHz crossover show up in the on-axis curve. Sits right around the ear’s most sensitive hearing range near 100Hz, so that region is partially audible even at modest levels.

AppNo
Bass Extension (-10dB)62Hz (measured, Audio Science Review)
Bass Extension (-3dB)80Hz (measured, Audio Science Review)
DSPNo
Dimensions10.6"H x 5.9"W x 10.8"D (268 x 151 x 274 mm)
Drivers5" woofer, 2409H 1" compression driver
EQNo
Frequency Response39Hz - 36kHz (Manufacturer specified)
Output Power500W total (250W woofer, 250W tweeter)
Weight12.6 lbs / 5.7 kg each

Genelec 8331A: $5750 Bhphotovideo eBay

Genelec 8331A ranking card

Pros: A true compact point source: the coaxial mid/tweeter and acoustically concealed opposed woofers produce exceptionally uniform directivity, superb nearfield summation and pinpoint imaging. Erin measured F3 at 49Hz and F10 at 39Hz, heard useful 40Hz in-room extension, and reached 100dB at 3m before protection activated. Response is highly neutral, distortion is low, and GLM provides calibrated level, delay and room-response correction. The die-cast aluminum waveguide/enclosure is both structurally inert and nearly diffraction-free.

Cons: At $4,500/pair it is expensive for a monitor whose protection circuit mutes near its limit rather than allowing short-term overload; larger rooms and bass-heavy playback still benefit from a subwoofer. GLM calibration requires separate network hardware, and connectivity is studio-centric—analog/AES XLR with no consumer streaming. The compact dual racetrack woofers cannot match larger Genelec Ones for deep-bass headroom, and passive sensitivity is not applicable because all filtering and amplification are internal.

Amplification72W LF + 36W MF + 36W HF
Bass Extension (-10dB)39Hz (measured, Erin's Audio Corner)
Bass Extension (-3dB)49Hz (measured, Erin's Audio Corner)
Dimensions12"H x 7.4"W x 8.3"D (305 x 189 x 212 mm)
DriversDual 130x65mm woofers; 90mm coaxial mid; 19mm tweeter
Maximum Output100dB at 3m before protection (measured, Erin's Audio Corner)
SensitivityNot applicable (active DSP loudspeaker)
Weight14.8 lbs / 6.7kg each