Short answer: the JBL L52 Classic, though neither ranks well in its class. It ranks #131 of 179 bookshelf speakers by sound quality, rated 2.6/5, at $999; the Q Acoustics 5020 ranks #157, rated 2.2/5, and costs $1,199, which makes this an easy call rather than a real tradeoff. Both are rated below 3.0/5 among the 179 bookshelf speakers, and the Philharmonic Ceramic Mini, ranked #2 at $900, is a better place to start if sound quality matters.
The JBL L52 Classic is the more accurate, deeper-bass option. A retro bookshelf speaker with a walnut veneer cabinet, colorful foam grille and punchy upper bass. Its measured preference score, a predictor of how neutral it sounds, is 4.54 against 3.63 for the Q Acoustics 5020. Its bass reaches about 62Hz before falling 3dB, against 103Hz for the Q Acoustics 5020. The catch: Measured compression and distortion behavior from about 1-5 kHz was inconsistent (“wonky”) across output levels, and didn’t clean up even at lower volume; adding a subwoofer high-pass didn’t fix the high-frequency distortion either.
What the Q Acoustics 5020 does well: An attractively finished standmount with low distortion at normal levels and a rear port that can be plugged for placement flexibility. The tradeoff: Erin found the tonal balance distinctly too crisp, forward and treble-heavy: the top end is roughly 3-5dB elevated while the 1-3kHz region is recessed, so vocals change level unnaturally as they move through their range.
Buy the JBL L52 Classic. It is rated higher for sound quality than the Q Acoustics 5020 and costs less, which makes it the one to get unless you need something the other one does better.
Looking for alternatives? See the complete Passive Home rankings.
Measured Differences
- Tonal accuracy above the bass: with a subwoofer taking the low end, the JBL L52 Classic scores 7.0 against 6.5 for the Q Acoustics 5020 on the Spinorama preference scale. Its frequency response and off-axis sound are smoother, so voices and instruments sound closer to the recording.
- Efficiency: the Q Acoustics 5020 is rated at 87.1 dB sensitivity against 85 dB for the JBL L52 Classic, so it plays as loud with roughly two thirds of the amplifier power.
- Close enough not to matter: bass extension (45 Hz vs 48 Hz, 10 dB down).
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Specifications Side By Side
| JBL L52 Classic | Q Acoustics 5020 | |
|---|---|---|
| Price | $999.00 per pair | $1,199.00 per pair |
| Ranked | #131 of 179 in Medium Size Bookshelf Speakers | #157 of 179 in Medium Size Bookshelf Speakers |
| Drivers | 5.25” pure pulp cone woofer, 0.75” titanium dome tweeter with waveguide | 5” (125mm) C3 mid/bass driver, 1” (25mm) tweeter |
| Dimensions | 13-1/16”H x 7-13/16”W x 8-11/16”D | 11.2”H x 7.1”W x 11.5”D |
| Weight | 11 lbs (5 kg) each | 15.4 lbs (7.0 kg) each |
| Impedance | 4 ohms nominal, 3.7 ohms minimum (measured, Erin’s Audio Corner) | 6 ohms nominal, 3.3 ohms minimum (manufacturer specified) |
| Sensitivity | 85dB (measured average, Erin’s Audio Corner) | 87.1dB (2.83V/1m, measured, Erin’s Audio Corner; 87.9dB manufacturer specified) |
| Frequency Response | 47Hz - 24kHz (-6dB, manufacturer specified) | 53Hz - 30kHz (-6dB, manufacturer specified) |
| Power Handling | 10-75W RMS | - |
| Bass Extension (-3dB) | 62Hz (measured average, Erin’s Audio Corner) | 103Hz (measured, Erin’s Audio Corner) |
| Bass Extension (-10dB) | 45Hz (measured average, Erin’s Audio Corner) | 48Hz (measured, Erin’s Audio Corner) |
| Crossover Frequency | 2.8kHz | 2.5kHz (manufacturer specified) |
| Spinorama Preference Score | 4.54 | 3.63 |
| Spinorama Preference Score with Perfect Sub | 6.96 | 6.55 |
| DIY Kit | No | No |
| Recommended Power | - | 25W - 100W (manufacturer specified) |
| Woofer Cabinet | - | rear-ported |
Where the Ratings Come From
- JBL L52 Classic: Spinorama.org measurements and reviews by Erin’s Audio Corner.
- Q Acoustics 5020: 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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