Ultra Bookshelf vs Wharfedale Diamond 225
The Diamond 225 matches the Ultra Bookshelf on sensitivity (87 dB), impedance (8Ω), low-frequency extension (45 Hz), and woofer (6.5").
AI-generated product photo — not official manufacturer imagery.
LoudspeakersBookshelf SpeakersDiscontinued
Estimated price (community-sourced)
$500
Around — community and catalog average, updates slowly
About the Ultra Bookshelf
The SVS Ultra Bookshelf is a two-way bookshelf speaker featuring a 6.5-inch composite carbon-fiber woofer and a 1-inch aluminum dome tweeter, engineered for high-quality, full-range sound reproduction in home audio and home theater systems. It offers a rated frequency response of 45 Hz to 32 kHz (±3 dB), a sensitivity of 87 dB (2.83V @ 1m), and an 8-ohm nominal impedance, with recommended amplifier power from 20 to 150 watts. The speaker is available in real black oak veneer and piano gloss black finishes, with dual binding posts and a rear-firing bass port.
Specifications
Transducer Specifications
Driver and acoustic performance characteristics
- Sensitivity
- 87 dB SPL @ 1W/1m
- Impedance
- 8Ω
- Frequency Response
- 45 Hz - 32 kHz
- Power Handling
- 150W
- Min. Amplifier Power
- 20W
- Max. Amplifier Power
- 150W
Speaker Design
Driver configuration and enclosure design
- Configuration
- 2-way
- Driver Type
- dynamic
- Driver Size
- 6.5"
- Driver Count
- 2
- Enclosure Type
- sealed
Physical Dimensions
Size, weight, and appearance
- Dimensions
- 215.9 × 381 × 276.9 mm (W × H × D)
- Weight
- 8.62 kg (19 lbs)
- Available Colors
- Piano gloss black, white, real black oak veneer
Key Specifications
Sensitivity: 87 dB
Impedance: 8Ω
Frequency: 45-32000 Hz
Specifications are community-contributed and may not be accurate or complete. Verify all details with the manufacturer before making purchasing decisions. Terms & Conditions