ScanSpeak Ellipticor D8404/552000 Midrange
Speaker Drivers · SKU: D8404/552000 · Brand ScanSpeak
฿119,500 (incl. VAT) · Pre-order
ScanSpeak Ellipticor D8404/552000 Midrange specifications
| Impedance Voice-coil electrical resistance — must match your amplifier (e.g. 4Ω/8Ω) | 4 Ω |
|---|---|
| Sensitivity (SPL) Sensitivity — loudness at 1W/1m; higher means louder with less amplifier power | 92 dB |
| Fs Free-air resonance frequency — lower generally means deeper bass extension | 280 Hz |
| Qts Total Q at resonance (electrical + mechanical) — guides the sealed vs ported choice | 0.69 |
| Qes Electrical Q at resonance — comes from the magnet motor strength | 0.83 |
| Qms Mechanical Q at resonance — from damping of the surround and spider | 3.89 |
| Vas Equivalent air volume of the suspension compliance — used to size the enclosure | 0.27 L |
| Sd Effective cone area that actually moves air | 57.8 cm² |
| Xmax Maximum linear excursion — more travel means louder bass without distortion | 2.4 mm |
| Re DC resistance of the voice coil | 3.03 Ω |
| Le Voice-coil inductance — affects high-frequency response | 0.04 mH |
| Mms Total moving mass, including the air load | 5.75 g |
| BL Motor force factor (magnetic flux × coil length) — higher means tighter cone control | 6.1 T·m |
| Weight Driver weight | 5300 g |