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8 Ω
Datasheet
21 PT 3000 SUB [CARBON FIBRE]
The SWETON 21 PT 3000 SUB CARBON FIBER is the flagship of the range – a 21-inch subwoofer built on a carbonfibre composite diaphragm and a Bl ≈ 43.1 N/A motor. The result is 2.40% reference efficiency 97.0 dB at 2.83 V, the highest in the SWETON catalogue, combined with Fs ≈ 31.8 Hz and ±13.75 mm Xmax for 2.34 litres of displacement per stroke. At 3000 W AES a single cabinet holds ≈ 130 dB right across the 40–100 Hz band.
Key Features
- Program Power : 6000 W
- Sensitivity 1W/1M : 97 dB
- Response : 30-1500 Hz
- Voice Coil Diameter : 152 mm
- Nominal Diameter 545 mm
- Nominal Impedence 8 Ω
- Nominal Power Handling(AES) 3000 W
- Program Power 6000 W
- Sensitivity (1W/1m) 97 dB
- Frequency Range 30-1500 Hz
- Magnet Material Ferrite
- Voice Coil Diameter 152 mm
- Winding Material Copper
- Former Material Glass Fiber
- Winding Material In/Out
- Resonant Frequency (FS) 31.8 Hz
- DC Resistance (Re) 6.04 Ω
- Electrical Q (Qes) 0.292
- Mechanical Q (Qms) 25.81
- Total Q (Qts) 0.289
- Peak Diaphragm Displacement Volume (Vd) 2.34 Ltrs
- Compliance Equivalent Volume (vas) 227.19 Ltrs
- Effective Surface Area of Cone (Sd) 1698.23 cm^2
- Reference Efficiency (ƞo) 2.40%
- Moving Mass including air load (Mms) 450.65 gms
- Motor Strength (Bl) 43.11 T-m
- Voice Coil Inductance @ 1 KHz (Le) 1.71 mH
- Efficiency Bandwith Product (EBP) 109 Hz
- Voice Coil Overhang (Xmax) ±13.75 mm
- Overall Diameter 545 mm
- Bolt Circle Diameter 525 mm
- Baffle Cutout Diameter 497 mm
- Depth 220 mm
- Flange and Gasket Thickness 18.5 mm
- Gross Weight 34.75 Kgs
- Recone Kit Number REC21PT3000SUB8E
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