Signature 621 vs Reference 3A Dulcet
The Dulcet's sensitivity is 88 dB against the Signature 621's 90 dB. Both share impedance (6Ω), high-frequency extension (20 kHz), and woofer (6.5").
AI-generated product photo — not official manufacturer imagery.
LoudspeakersBookshelf Speakers
Estimated price (community-sourced)
$1,050
Around — community and catalog average, updates slowly
About the Signature 621
The RBH Sound Signature 621 is a versatile freestanding bookshelf speaker designed for use as left/right mains, a center channel, or surround speaker in a timbre-matched home theater system. It uses dual 6.5-inch aluminum cone woofers and a 1-inch soft dome tweeter, and is offered in black or white satin finish with a magnetic grille included.
Specifications
Transducer Specifications
Driver and acoustic performance characteristics
- Sensitivity
- 90 dB SPL @ 1W/1m
- Impedance
- 6Ω
- Frequency Response
- 50 Hz - 20 kHz
- Min. Amplifier Power
- 75W
- Max. Amplifier Power
- 200W
Speaker Design
Driver configuration and enclosure design
- Configuration
- 2-way
- Driver Type
- aluminum cone woofer and soft dome tweeter
- Driver Size
- 6.5"
- Driver Count
- 3
Physical Dimensions
Size, weight, and appearance
- Dimensions
- 197 × 567 × 305 mm (W × H × D)
- Available Colors
- black satin, white satin
Key Specifications
Sensitivity: 90 dB
Impedance: 6Ω
Frequency: 50-20000 Hz
Specifications are community-contributed and may not be accurate or complete. Verify all details with the manufacturer before making purchasing decisions. Terms & Conditions