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The Douk Audio BS-2 is a bass shaker designed to transmit low frequencies efficiently through direct contact, relying on a 4Ω impedance and a continuous power handling of 30W (50W peak). Its resonant frequency of 57 to 63Hz positions its operation across impacts and bass effects, enabling energy variations to be reproduced with clear tactile definition.
Intended for integration into seats, sofas or dedicated structures, it uses an aluminium chassis promoting thermal dissipation while maintaining mechanical stability under sustained use. This approach allows it to integrate into home theatre or gaming setups as targeted bass reinforcement, while retaining a compact footprint and controlled long-term operation.

Technical characteristics
| Specifications | |
|---|---|
| Product type | Bass shaker (Exciter) |
| Nominal impedance | 4Ω ±15% |
| Resonant frequency | 57–63Hz |
| Power handling | RMS: 30W Max: 50W |
| Sound pressure level (SPL) | 62dB ±3dB |
| Terminal material | Aluminium |
| Operating temperature | -20℃ ~ +70℃ |
| Storage temperature | -30℃ ~ +70℃ |
| General | |
|---|---|
| Dimensions | 86 × 89.7 × 38.5mm |
| Weight | 532g |
| Color | Black |
| Package | Sold individually |
| Speaker Power (W RMS) | 30 |
| Speaker Type | Exciter |
| Impedance (Ω) | 4 |
| Loudspeaker diameter (mm) | 89.7 |
| Diaphragm type | N/A |
| Efficiency / Sensitivity (dB) | N/A |
| Max Linear Excursion (Xmax) (mm) | N/A |
| Lowest frequency (Hz) | N/A |
| Highest frequency (Hz) | N/A |