USHER SD-502
Three-Way Precision in Compact Tower Form
The SD-502 is the pinnacle of the SD series, adopting a genuine three-way design to achieve exceptional tonal continuity and expressive detail. Where most compact towers compromise, the SD-502 excels — delivering expansive bandwidth and refined articulation in a restrained footprint.
Driver Configuration that Performs
The top end is handled by the same DMD diamond-dome tweeter (9980-20) found across USHER’s elite models. A dedicated 4.5″ multi-layer paper-fiber midrange driver (0426AP1) takes over from 420 Hz upward, relieving the tweeter and enhancing clarity. Two 5.5″ paper-fiber composite woofers (0535K) tackle frequencies below 420 Hz, providing deep, controlled bass with unity and power.
Sophisticated Crossover & Construction
The SD-502’s network features refined crossover points at 420 Hz and 2.4 kHz, optimised for coherence and driver efficiency. Premium components (air-core inductors, high-grade capacitors, oxygen-free copper wiring) are standard. The cabinet employs 0.85″-thick panels and internal bracing to suppress resonance, while a bottom-mounted reflex port enables compact depth yet strong bass extension.
Visual and Spatial Integration
Despite its tower stature, the SD-502 preserves an elegant form factor: just 23.5 cm wide and 38.5 cm deep, standing at 112 cm high with a weight of 25.5 kg per unit. Finishes include high gloss or matte Walnut wood veneer with piano black front baffle, magnetic grilles for a clean, premium appearance.
The SD-502 is the ultimate compact tower from USHER — delivering three-way performance, deep bass, nuanced midrange and articulate highs in a form that suits refined listening rooms yet demands full attention.
SPECIFICATIONS
|
System type |
3-way floorstanding bass reflex loudspeaker |
|
Tweeter |
1.25” DMD diamond dome tweeter (9980-20DMD) |
|
Midrange |
4.5” multi-layer paper fiber cone (0426AP1) |
|
Woofer |
5.5” paper fiber composite cone ×2 (0535K) |
|
Sensitivity |
89 dB @ 1W / 1m |
|
Nominal impedance |
4 ohms |
|
Frequency response |
42 Hz – 40 kHz |
|
Crossover frequencies |
420 Hz / 2.4 kHz |
|
Recommended power handling |
100 W |
|
Dimensions (W × D × H) |
23.5 × 38.5 × 112 cm |
|
Weight |
25.5 kg (per speaker) |