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The reference version of the SI-663, the SI-663/R reference in-wall speaker is designed for demanding custom integrations where a center channel cannot be used or is intentionally removed for design considerations, or when multiple-tier theater style seating is used. With its three 6-inch reference aluminum cone woofers and dual 1-inch reference tweeters, the SI-663/R is the perfect in-wall speaker for those looking for reference-grade sound from a discreet location.

Each of the RBH Sound speaker series can be mixed and combined within the like series, creating a vast selection of options to create a unique home theater experience.
» For All Signature Series In-wall Speakers and Subwoofers click here.

Additional product information.
Model Name:  ...  SI-663/R
Series:  ...  Signature Reference In-wall
System Type:  ...  In-wall/LCR Dual 2-way Speaker
Frequency Response:  ...  50Hz-20kHz (±3dB)
Sensitivity:  ...  90dB Main, 88dB Center, and
92dB Combined (2.83V @ 1 Meter)
Recommended Power:  ...  75-225 Watts Main, 75-175 Watts Center and
75-450 Watts Combined
Drive Units:  ...  (3) 6-1/2" (165mm) Reference Aluminum Cone Woofers
(2) 1.1" (28mm) Reference Silk Dome Tweeters
Tweeter Protection:  ...  Yes
Swivel Tweeter(s):  ...  No
Crossover Frequency:  ...  2,700 Hz
Crossover Slope:  ...  12dB/Octave
Impedance:  ...  8 Ohms Main, 6 Ohms Center and
4 Ohms Combined
Cabinet Material/Color:  ...  Medium Density Fiberboard (MDF)/Black
Cabinet Finish:  ...  Black Enclosure
Baffle and Grille:  ...  Baffle Black; Grille Black or White.
Enclosure Sold Separately.
Baffle Dimensions:  ...  8" W x 32" H
(203mm W x 812mm H)
Enclosure Dimensions:  ...  14" W x 56" H x 3-1/2" D
(356mm W x 1422mm H x 89mm D)
Weight:  ...  60 lbs. (26.76 kg)
Warranty:  ...  5 Years

If you would like to submit a comment about this product or customer service and have it posted, please send your comments to: info@rbhsound.com.

» Audioholics.com
   SI-663 In-Wall Speaker (9/2009)
» ecoustics.com
   SI-663 In-wall Speaker (9/2009)


Click on any of the below links to open and save downloadable literature.
» SI-663/R Owner's Manual
» Signature Reference Series SI In-wall Brochure
» Technical Specification Sheet
» In-wall Speaker Cabinet Instructions

Grille Off

Black Grille

White Grille