S520 vs DALI OBERON 1
The OBERON 1's impedance is 6Ω against the S520's 8Ω and its low-frequency extension 51 Hz against 53 Hz. Both share sensitivity (86 dB) and ways (2).
AI-generated product photo — not official manufacturer imagery.
LoudspeakersBookshelf Speakers
Estimated price (community-sourced)
$250 - $550
Around — community and catalog average, updates slowly
About the S520
The Usher Audio S-520 is a compact two-way, front-ported bookshelf loudspeaker. It combines a 1-inch UA25-10 silk-dome tweeter with a 5-inch KSW2-5029B polypropylene-cone mid-woofer, crossed over at approximately 2 kHz. The speaker is rated at 86 dB sensitivity, has an 8-ohm nominal impedance and 50-watt power handling, and is specified for roughly 53 Hz–20 kHz response. Its compact cabinet measures approximately 180 × 265 × 300 mm (W × D × H).
Specifications
Transducer Specifications
Driver and acoustic performance characteristics
- Sensitivity
- 86 dB SPL @ 1W/1m
- Impedance
- 8Ω
- Frequency Response
- 53 Hz - 20 kHz
- Power Handling
- 50W
- Max. Amplifier Power
- 125W
Speaker Design
Driver configuration and enclosure design
- Configuration
- 2-way
- Driver Type
- polypropylene cone woofer and silk-dome tweeter
- Driver Size
- 5"
- Driver Count
- 2
- Enclosure Type
- ported
- Crossover Frequency
- 2.1 kHz
Physical Dimensions
Size, weight, and appearance
- Dimensions
- 180 × 300 × 265 mm (W × H × D)
- Weight
- 6.3 kg (14 lbs)
- Available Colors
- birch veneer, matte black, gloss black, gloss white, gloss red, gloss yellow, metallic silver, piano black, pearl white, Ferrari red
Key Specifications
Sensitivity: 86 dB
Impedance: 8Ω
Frequency: 53-20000 Hz
Specifications are community-contributed and may not be accurate or complete. Verify all details with the manufacturer before making purchasing decisions. Terms & Conditions