Signature 66-SB vs Lyngdorf Audio SB75
The SB75's sensitivity is 92 dB against the Signature 66-SB's 90 dB and its impedance 4Ω against 6Ω. Both share high-frequency extension (20 kHz) and woofer (6.5").
AI-generated product photo — not official manufacturer imagery.
LoudspeakersSoundbars
Estimated price (community-sourced)
$6,000
Around — community and catalog average, updates slowly
About the Signature 66-SB
The RBH Sound Signature 66-SB is a passive, wall-mountable 2-way, 3-channel speaker bar designed to provide left, center, and right front-channel audio from a single cabinet. It uses six 6.5-inch Signature aluminum-cone woofers and three fabric-dome tweeters, with a custom passive crossover network. The product is offered in a nominal 66-inch length, with related/custom configurations reportedly available from approximately 66 to 96 inches. Available manufacturer listings identify it as an active Signature-series product available through dealers; it should not be confused with the similarly named Reference 66-SB, which uses AMT tweeters.
Specifications
Transducer Specifications
Driver and acoustic performance characteristics
- Sensitivity
- 90 dB SPL @ 1W/1m
- Impedance
- 6Ω
- Frequency Response
- 70 Hz - 20 kHz
- Min. Amplifier Power
- 75W
- Max. Amplifier Power
- 200W
Speaker Design
Driver configuration and enclosure design
- Configuration
- 2-way
- Driver Type
- dynamic
- Driver Size
- 6.5"
- Driver Count
- 9
Connectivity
Input and output connections
- Bluetooth
- No
- Wi-Fi
- No
- Ethernet
- No
Never published
- Power Specifications — the maker never published this. Checked 30 sources on 9 Sept 2026
- Digital Audio — the maker never published this. Checked 30 sources on 9 Sept 2026
Key Specifications
Sensitivity: 90 dB
Impedance: 6Ω
Frequency: 70-20000 Hz
Specifications are community-contributed and may not be accurate or complete. Verify all details with the manufacturer before making purchasing decisions. Terms & Conditions