JBL 705P vs Genelec 8331A

Last updated: October 6, 2026

Short answer: the Genelec 8331A. It ranks #1 of 100 powered bookshelf speakers by sound quality, rated 4.8/5, at $5,750. The JBL 705P ranks #42, rated 3.9/5, at $2,198, $3,552 cheaper, which does not close the gap in sound quality.

JBL 705P vs Genelec 8331A

What the JBL 705P does well: ASR’s data gives bass reaching -3dB around 48Hz and a 6.71 ideal-subwoofer preference score. The catch: The standalone score is 4.70, and a localized cancellation near 750Hz contributes to the large 7.8dB midrange response span.

The Genelec 8331A is the more accurate choice. Erin’s Klippel measurements support its reference-monitor credentials: a 1.4dB response span from 300Hz to 5kHz, low listening-window and predicted-room irregularity, and preference scores of 6.57 standalone and 8.51 with an ideal subwoofer. Its measured preference score, a predictor of how neutral it sounds, is 6.57 against 4.70 for the JBL 705P. The tradeoff: Expensive, with studio-oriented XLR connectivity rather than consumer streaming.

Buy the Genelec 8331A. It is rated higher for sound quality, and the $3,552 saving on the JBL 705P is not enough to make up the difference.

Looking for alternatives? See the complete Powered Home rankings.

Specifications Side By Side

JBL 705P Genelec 8331A
Price$2,198 per pair$5,750 per pair
Ranked#42 of 100 in Medium Size Powered Bookshelf Speakers#1 of 100 in Medium Size Powered Bookshelf Speakers
Bass Extension (-3dB)47.6Hz (measured, Audio Science Review)49Hz (measured, Erin’s Audio Corner)
Bass Extension (-10dB)38.9Hz (derived, log-interpolated between spinorama.org -9dB/-12dB points)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)45Hz - 37kHz (-6dB) (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-
Amplifier Power500W total (250W woofer, 250W tweeter)72W LF + 36W MF + 36W HF
Spinorama Preference Score4.706.57
Spinorama Preference Score with Perfect Sub6.718.51
InputsXLR/TRS combo (analog), XLR AES3 (digital)XLR, AES/EBU
XLR InputYesYes
RCA InputNoNo
TRS InputYesNo
Optical InputNoNo
Coaxial InputNoNo
USB InputNoNo
HDMI InputNoNo
AES InputYesYes
Aux InputNoNo
BluetoothNoNo
Maximum SPL-100dB at 3m before protection (measured, Erin’s Audio Corner)

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The Two Speakers In Full

JBL 705P: $2,198 per pair B&H Photo Video eBay

JBL 705P ranking card

Same family: the JBL 708P (larger bookshelf, rated 4.2/5).

Pros: ASR’s data gives bass reaching -3dB around 48Hz and a 6.71 ideal-subwoofer preference score. Its waveguided compression driver and dedicated amplification are suited to studio use, and the broad response trend is close to level. It has useful low-frequency reach for a five-inch monitor. Measured bass extension of 47.6Hz (-3dB).

Cons: The standalone score is 4.70, and a localized cancellation near 750Hz contributes to the large 7.8dB midrange response span. A crossover-region rise also prevents reference-flat reproduction. An average flat trend does not erase these features, and amplifier wattage is not a measured clean-SPL rating. The data does not support calling it uniformly flat simply because it shares technology with larger JBL models.

AES InputYes
Amplifier Power500W total (250W woofer, 250W tweeter)
AppNo
Aux InputNo
Bass Extension (-10dB)38.9Hz (derived, log-interpolated between spinorama.org -9dB/-12dB points)
Bass Extension (-3dB)47.6Hz (measured, Audio Science Review)
BluetoothNo
Coaxial InputNo
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)
HDMI InputNo
InputsXLR/TRS combo (analog), XLR AES3 (digital)
Optical InputNo
RCA InputNo
Spinorama Preference Score4.70
Spinorama Preference Score with Perfect Sub6.71
TRS InputYes
USB InputNo
Weight12.6 lbs (5.7 kg) each
XLR InputYes

Genelec 8331A: $5,750 per pair B&H Photo Video eBay

Genelec 8331A ranking card

Same family: the Genelec 8341A (larger bookshelf, rated 4.8/5), the Genelec 8351B (larger bookshelf, rated 4.8/5), the Genelec 8361A (larger bookshelf, rated 4.8/5) and the Genelec 8381A (floorstanding, estimated 4.9/5).

Pros: Erin’s Klippel measurements support its reference-monitor credentials: a 1.4dB response span from 300Hz to 5kHz, low listening-window and predicted-room irregularity, and preference scores of 6.57 standalone and 8.51 with an ideal subwoofer. The coaxial mid/tweeter and concealed woofers maintain coherent radiation as listening position changes. Bass reaches -3dB around 48Hz, and GLM adds level, delay and room-response calibration. Measured bass extension of 49Hz (-3dB).

Cons: Expensive, with studio-oriented XLR connectivity rather than consumer streaming. The compact woofers still limit deep-bass output, and the review reports protection muting when pushed beyond its operating range. GLM calibration hardware is an additional purchase. Its excellent tonal score does not remove the need for a subwoofer or larger monitor at demanding levels.

AES InputYes
Amplifier Power72W LF + 36W MF + 36W HF
Aux InputNo
Bass Extension (-10dB)39Hz (measured, Erin’s Audio Corner)
Bass Extension (-3dB)49Hz (measured, Erin’s Audio Corner)
BluetoothNo
Coaxial InputNo
Dimensions12”H x 7.4”W x 8.3”D (305 x 189 x 212 mm)
DriversDual 130x65mm woofers; 90mm coaxial mid; 19mm tweeter
Frequency Response45Hz - 37kHz (-6dB) (Manufacturer specified)
HDMI InputNo
InputsXLR, AES/EBU
Maximum SPL100dB at 3m before protection (measured, Erin’s Audio Corner)
Optical InputNo
RCA InputNo
Spinorama Preference Score6.57
Spinorama Preference Score with Perfect Sub8.51
TRS InputNo
USB InputNo
Weight14.8 lbs (6.7kg) each
XLR InputYes