Reference 66-SB vs Signature 66-SB
The Signature 66-SB's ways is 2 against the Reference 66-SB's 3. Both share woofer (6.5"), drivers (9), and driver type (Dynamic).
AI-generated product photo — not official manufacturer imagery.
LoudspeakersSoundbars
Estimated price (community-sourced)
$6,000
Around — community and catalog average, updates slowly
About the Reference 66-SB
The RBH Sound Reference 66-SB is a passive, wall-mounted 2-way, 3-channel speaker bar intended for left/center/right home-theater applications. It uses six 6.5-inch Reference anodized-aluminum-cone woofers, three Reference AMT tweeters, and a custom passive crossover network. The bar can be configured as a true three-channel LCR speaker or for wide-dispersion center-channel operation. RBH Sound lists the model as an active Reference-series product available through dealers, so it does not appear to be discontinued. Note that published specifications found for the closely related Reference 64-SB should not be assumed to apply to the 66-SB; RBH’s public listing does not provide a complete electrical specification sheet for this exact model.
Specifications
Speaker Design
Driver configuration and enclosure design
- Configuration
- 3-way
- Driver Type
- dynamic
- Driver Size
- 6.5"
- Driver Count
- 9
Connectivity
Input and output connections
- Bluetooth
- No
- Wi-Fi
- No
- Ethernet
- No
- Analog Outputs
- passive speaker terminals
Never published
- Transducer Specifications — the maker never published this. Checked 15 sources on 9 Sept 2026
- Power Specifications — the maker never published this. Checked 15 sources on 9 Sept 2026
- Digital Audio — the maker never published this. Checked 15 sources on 9 Sept 2026
Specifications are community-contributed and may not be accurate or complete. Verify all details with the manufacturer before making purchasing decisions. Terms & Conditions