Short answer: the Revel W126Be. It ranks #3 of 18 in-wall speakers by sound quality, rated 4.3/5, at $3,849.90. The JBL Synthesis SCL-6 ranks #8, rated 3.9/5, at $3,629.90, $220 cheaper, which does not close the gap in sound quality.
What the Revel W126Be does well: Revel’s own measurement, published on spinorama.org, gives a preference score of 5.39, or 7.97 with a perfect subwoofer, with a smooth predicted in-room response (0.85 smoothness). The tradeoff: The measurement comes from Revel, digitized from its published curves, and has no independent second test, so treat the figures as manufacturer supplied.
The case for the JBL Synthesis SCL-6: Erin’s Audio Corner measured it with a very tight 1.2dB reference band and 0.67 listening-window smoothness, and its preference score rises from 3.92 to 6.71 with a subwoofer. The catch: 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.
Want more options? Browse the full Passive Home rankings.
Specifications Side By Side
| Revel W126Be | JBL Synthesis SCL-6 | |
|---|---|---|
| Price | $3,849.90 per pair | $3,629.90 per pair |
| Ranked | #3 of 18 in In-Wall & In-Ceiling Speakers | #8 of 18 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 |
Related Speaker Comparisons
More worthwhile head-to-heads for Revel W126Be:
- KEF Ci3160RLM-THX vs Revel W126Be
- Revel W553L vs Revel W126Be
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- JBL Synthesis SCL-6 vs Revel W990
- JBL Synthesis SCL-6 vs Miller & Kreisel IW150
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The Two Speakers In Full
Revel W126Be: $3,849.90 per pair Crutchfield eBay
Pros: Revel’s own measurement, published on spinorama.org, gives a preference score of 5.39, or 7.97 with a perfect subwoofer, with a smooth predicted in-room response (0.85 smoothness). Directivity is tightly controlled (SPDI deviation 2.01dB) and on-axis deviation averages only 0.34dB. Bass measures to 62.6Hz at -6dB. It pairs a 1” beryllium dome tweeter and acoustic lens waveguide with a 6.5” aluminum cone woofer, rated at 89dB sensitivity and 105dB maximum output. Measured bass extension of 89.7Hz (-3dB).
Cons: The measurement comes from Revel, digitized from its published curves, and has no independent second test, so treat the figures as manufacturer supplied. Bass is limited, with -3dB at 89.7Hz, so a subwoofer is needed for full range sound. At $1925 each a stereo pair costs twice that, and the optional back box is sold separately. A single 6.5” woofer gives less output than the dual-woofer W226Be.
Full Revel W126Be review and specifications →
| Bass Extension (-10dB) | 42.5Hz (measured, Revel vendor data on spinorama.org) |
|---|---|
| Bass Extension (-3dB) | 89.7Hz (measured, Revel vendor data on spinorama.org) |
| Crossover Frequency | 2,100Hz |
| DIY Kit | No |
| Dimensions | 15.6”H x 10.2”W x 3.8”D (395 x 260 x 97 mm) (88.7mm mounting depth) |
| Drivers | 6.5” Deep Ceramic Composite (DCC) aluminum cone woofer, 1” beryllium dome tweeter with acoustic lens waveguide (2-way) |
| Enclosure | In-wall, 9-18L enclosure (optional W126BEBB back box sold separately) |
| Frequency Response | 55Hz-40kHz (-6dB, manufacturer) |
| Impedance | 6 ohms nominal (4 ohm minimum) |
| Maximum SPL | 105dB (manufacturer specified) |
| Mounting Cutout | 226W x 357H mm |
| Power Handling | 50-150W RMS at 4 ohms |
| Sensitivity | 89dB |
| Spinorama Preference Score | 5.39 |
| Spinorama Preference Score with Perfect Sub | 7.97 |
| Weight | 10.4 lbs (4.7 kg) |
- Links
- Reviews, Comparisons and Sound Samples
- Head-to-Head Comparisons
JBL Synthesis SCL-6: $3,629.90 per pair Audio Advice eBay
Pros: Erin’s Audio Corner measured it with a very tight 1.2dB reference band and 0.67 listening-window smoothness, and its preference score rises from 3.92 to 6.71 with a subwoofer. Four 5.25-inch aluminum woofers around a 2410H-2 compression driver on JBL’s imaging horn give 91dB sensitivity and high output, with an 80 degree by 80 degree treble coverage pattern that keeps directivity consistent. Bass measures 67.4Hz at -3dB and about 40.8Hz at -10dB in free air, before the extra wall reinforcement of an in-wall install. Measured bass extension of 67.4Hz (-3dB).
Cons: Bass is limited without a subwoofer, and a 3.92 standard score trails the best in-wall speakers here. Average on-axis deviation of 0.49dB is rougher than the Revel in-walls. The 4 ohm load and 766mm tall cutout need a capable amplifier and a tall wall cavity, and at $1815 each it is sold mainly through custom-installation dealers.
Full JBL Synthesis SCL-6 review and specifications →
| Bass Extension (-10dB) | 40.8Hz (measured, spinorama.org Erin’s Audio Corner data) |
|---|---|
| Bass Extension (-3dB) | 67.4Hz (measured, spinorama.org Erin’s Audio Corner data) |
| Crossover Frequency | 1.8kHz |
| DIY Kit | No |
| Dimensions | 31.3”H x 7.3”W x 3.8”D (796 x 185 x 97 mm) (92mm mounting depth) |
| Drivers | Four 5.25” aluminum matrix cone woofers, 1” 2410H-2 compression driver on HDI horn (2.5-way) |
| Enclosure | In-wall, open back |
| Frequency Response | 50Hz-30kHz -6dB (manufacturer, 2pi) |
| Impedance | 4 ohms |
| Mounting Cutout | 157 x 766mm (6.18 x 30.18 in) |
| Power Handling | 25-200W recommended amplifier power |
| Sensitivity | 91dB (2.83V/1m, 2pi anechoic) |
| Spinorama Preference Score | 3.92 |
| Spinorama Preference Score with Perfect Sub | 6.71 |
| Weight | 22.2 lbs (10.07 kg) |
- Links
- Reviews, Comparisons and Sound Samples
- Head-to-Head Comparisons