RBH SI-663/R BAFFLE ASSEMBLY for SI-663/R in-wall speaker

Signature REFERENCE 2-way Baffle Assembly


Driver Color
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• black satin finish
• triple 6.5"" black-anodized phase plug woofers; dual AMT tweeters
• In-wall cabinet required / sold separately
• Grille optional / sold separately


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The reference version of the SI-663, the SI-663/R is designed for demanding custom installations where a center channel cannot be used or is intentionally removed for design considerations. When wired for dual channel operation, a pair of the SI-663/R reference in-wall speakers can provide a discrete and dedicated center channel from the left and right speakers. When three SI-663/Rs can be used, the trio wired in single-channel configuration can provide a seamless, reference-level front sound stage from their covert in-wall locations.


  • SI-663/R SERIES Signature Reference Series | In-wall Speaker SYSTEM TYPE Sealed / LCR Dual Channel Speaker DRIVE UNITS (3) 6-1/2" (165mm) cast aluminum basket, aluminum cone woofer (sliver or black-anodized), with solid aluminum phase plug (2) 1.38" X 1" (35mm x 25mm) AMT tweeter FREQUENCY RESPONSE 50Hz-40kHz (±3dB) SENSITIVITY 91dB Main, 89dB Center,and 93dB Combined (2.83V @ 1 Meter) RECOMMENDED POWER 75-225 Watts Main, 75-175 Watts Center and 75-450 Watts Combined IMPEDANCE 8 Ohms Main, 6 Ohms Center and 4 Ohms Combined TWEETER PROTECTION Yes CROSSOVER FREQUENCY 2,700 Hz CROSSOVER SLOPE 12dB/Octave IN-WALL CABINET DETAILS High Density Fiberboard (HDF) Black Paint 14” W x 56” H x 3-1/2” D (356mm W x 1422mm H x 89mm D) BAFFLE ASSEMBLY DETAILS High Density Fiberboard (HDF) Black Satin Paint 8” x 32” x 3-1/8" (203 x 812 x 80mm) GRILLE DETAILS Black or White Fabric FINISHED DIMENSIONS 14” x 56” x 4” (356 x 1422 x 102mm) WEIGHT (total) 60 lbs (27.22 kg) WARRANTY *10 year limited COMPONENTS IN-WALL CABINET SI-663 In-wall Cabinet BAFFLE ASSEMBLY SI-663/R Baffle Assembly Grille Options SI-663 Grille Black (fabric) SI-663 Grille White (fabric) Retrofit Option N/A