| Model ID | PS-4A |
| Form Factor | Floorstanding |
| Signal Path | Passive Hardware |
| Dimensions | 31.8 × 88.9 × 30.8 cm (W × H × D) |
| Weight | 48lbs |
| Frequency Response | 35Hz-24kHz ±3dB |
| Treble | Heil Air-Motion Transformer (AMT) (Total Radiating Area: 10.4in², Transformation Ratio: 5.3:1) |
| Midrange/Bass | 10" Cone |
| Passive Radiator | 10" |
| Sensitivity | 93dB/W/m |
| Impedance (Nominal) | 6Ω |
| Crossover Frequency | 2kHz |
| Dispersion (Horizontal) | 120° |
| Dispersion (Vertical) | 40° |
| Recommended Amplifier Power (RMS) | >15W |
| Power Handling | 160W |
| Enclosure Type | Passive Radiator |
| Finish | Walnut-grain Vinyl |
| Controls | - Brilliance (1.5kHz-24kHz) · Rotary Pot · -50dB to +3dB
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