Short answer: the JBL Stage 250B, if you are buying new. The JBL Studio 530 ranks higher than it (#85 vs #97 of 179 bookshelf speakers, 3.3/5 vs 3.2/5) but is discontinued, so only consider it used; the JBL Stage 250B is still sold new at $439.95.
The JBL Stage 250B is the deeper-bass pick. Affordable current bookshelf speakers with a waveguide tweeter for smooth dispersion, magnetic grilles and solid build. Its bass reaches about 64.5Hz before falling 3dB, against 73.2Hz for the JBL Studio 530. The catch: Its objective score is good rather than class-leading, and the rear port needs some wall clearance.
The JBL Studio 530 is the more accurate option. Compact bookshelf speakers with a PolyPlas cone woofer and a fairly flat direct response. Its measured preference score, a predictor of how neutral it sounds, is 5.21 against 4.06 for the JBL Stage 250B. The catch: A peak around 1.4kHz is attributed to a tweeter resonance, and shows up as a distinct spike in harmonic distortion at that frequency along with a second resonance-driven bump around 2kHz.
Buy the JBL Stage 250B new; the JBL Studio 530 is no longer sold new, so it only makes sense as a used find.
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Specifications Side By Side
| JBL Stage 250B | JBL Studio 530 | |
|---|---|---|
| Price | $439.95 per pair | $399 per pair Discontinued |
| Ranked | #97 of 179 in Medium Size Bookshelf Speakers | #85 of 179 in Medium Size Bookshelf Speakers |
| Enclosure | Passive 2-way rear-ported | - |
| Drivers | 1-inch aluminum tweeter, 5.25-inch polycellulose woofer | 5.25” (130mm) PolyPlas™ cone woofer with SFG magnet, 1” (25mm) compression driver with Teonex® diaphragm on Bi-Radial® horn |
| Frequency Response | 50Hz-25kHz (-6dB) | - |
| Sensitivity | 86dB/2.83V/1m | ~85dB (measured by Audio Science Review) |
| Impedance | 6 ohms | 6 ohms nominal (4 ohms minimum, measured by Audio Science Review) |
| Recommended Power | 20-150W | - |
| Dimensions | 12.6H x 7.9W x 9.5D in | 18.4”H x 8.4”W x 8.7”D (467 x 214 x 222 mm) |
| Weight | 12.3 lbs (5.6 kg) each | 17 lbs (7.7 kg) each |
| Spinorama Preference Score | 4.06 | 5.21 (spinorama.org) |
| Spinorama Preference Score with Perfect Sub | 6.60 | 7.29 (spinorama.org) |
| Bass Extension (-3dB) | 64.5Hz (measured, Erin’s Audio Corner via spinorama.org) | 73.2Hz (measured, Audio Science Review) |
| DIY Kit | No | No |
| Bass Extension (-10dB) | 50Hz (measured, Erin’s Audio Corner) | 40Hz (derived, log-interpolated between spinorama.org -9dB/-12dB points) |
| Power Handling | 75W RMS | - |
| Woofer Cabinet | ported, rear | ported |
| Crossover Frequency | - | 1.5kHz |
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