Short answer: the Revel W126Be. It ranks #3 of 28 in-wall speakers by sound quality, rated 4.3/5, at $3,849.90. The JBL Synthesis SCL-6 ranks #10, rated 3.9/5, at $3,629.90, $220 cheaper, which does not close the gap in sound quality.
The Revel W126Be is the more accurate choice. A premium in-wall speaker with a beryllium tweeter, smooth accurate sound and very even dispersion, best paired with a subwoofer. Its measured preference score, a predictor of how neutral it sounds, is 5.39 against 3.92 for the JBL Synthesis SCL-6. The catch: The measurement comes from Revel, digitized from its published curves, and has no independent second test, so treat the figures as manufacturer supplied.
The JBL Synthesis SCL-6 is the deeper-bass pick. A high output in-wall speaker with four woofers and a horn tweeter, giving very even, accurate sound across the room. Its bass reaches about 67.4Hz before falling 3dB, against 89.7Hz for the Revel W126Be. The tradeoff: Bass is limited without a subwoofer, and a 3.92 standard score trails the best in-wall speakers here.
Buy the Revel W126Be. It is rated higher for sound quality, and the $220 you would save on the JBL Synthesis SCL-6 does not close the gap.
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Specifications Side By Side
| Revel W126Be | JBL Synthesis SCL-6 | |
|---|---|---|
| Price | $3,849.90 per pair | $3,629.90 per pair |
| Ranked | #3 of 28 in In-Wall & In-Ceiling Speakers | #10 of 28 in In-Wall & In-Ceiling Speakers |
| Drivers | 6.5” Deep Ceramic Composite (DCC) aluminum cone woofer, 1” beryllium dome tweeter with acoustic lens waveguide (2-way) | Four 5.25” aluminum matrix cone woofers, 1” 2410H-2 compression driver on HDI horn (2.5-way) |
| Enclosure | In-wall, 9-18L enclosure (optional W126BEBB back box sold separately) | In-wall, open back |
| Mounting Cutout | 226W x 357H mm | 157 x 766mm (6.18 x 30.18 in) |
| Dimensions | 15.6”H x 10.2”W x 3.8”D (395 x 260 x 97 mm) (88.7mm mounting depth) | 31.3”H x 7.3”W x 3.8”D (796 x 185 x 97 mm) (92mm mounting depth) |
| Weight | 10.4 lbs (4.7 kg) | 22.2 lbs (10.07 kg) |
| Sensitivity | 89dB | 91dB (2.83V/1m, 2pi anechoic) |
| Impedance | 6 ohms nominal (4 ohm minimum) | 4 ohms |
| Power Handling | 50-150W RMS at 4 ohms | 25-200W recommended amplifier power |
| Frequency Response | 55Hz-40kHz (-6dB, manufacturer) | 50Hz-30kHz -6dB (manufacturer, 2pi) |
| Maximum SPL | 105dB (manufacturer specified) | - |
| Crossover Frequency | 2,100Hz | 1.8kHz |
| Bass Extension (-3dB) | 89.7Hz (measured, Revel vendor data on spinorama.org) | 67.4Hz (measured, spinorama.org Erin’s Audio Corner data) |
| Bass Extension (-10dB) | 42.5Hz (measured, Revel vendor data on spinorama.org) | 40.8Hz (measured, spinorama.org Erin’s Audio Corner data) |
| Spinorama Preference Score | 5.39 | 3.92 |
| Spinorama Preference Score with Perfect Sub | 7.97 | 6.71 |
| DIY Kit | No | No |
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