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THIS 21" WOOFER HAS A STRONG BASS SOUND W/ A 6" VOICE COIL! |
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Item Price: $795.95 |
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P.Audio |
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SD SERIES - 21" WOOFER - SD-21 |
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THIS 21" WOOFER HAS A STRONG BASS SOUND W/ A 6" VOICE COIL! |
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Item Price: $795.95 |
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WOOFER
MODEL |
SD-21 |
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SPECIFICATIONS |
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Nominal
Basket Diameter |
21" |
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Impedance |
8
ohms |
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RMS
Power Rating |
1,000
Watts |
| Program Power |
2,000
Watts |
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Frequency
Response |
30Hz
- 1.5kHz |
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Sensitivity
(1W/1m) |
96.9dB |
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Voice
Coil Diameter |
6"
/ 152.4mm |
| Voice Coil Material | ALR |
| Terminal Type | Gold Plated Push |
| Spider Material | Treated Cotton |
| Former Material | Glass Fiber |
| Dust Cap | Paper |
| Basket | Cast Aluminum |
| Basket Color | Blue |
| Cone Material | Paper Pulp |
| Surround Material | Treated Cloth |
| Magnet Material | Ferrite |
| Magnet Weight | 152.3 oz. |
| Net
Weight |
34.4 kg. / 75.68 lbs. |
| Shipping Weight | 40 kg. / 88 lbs. |
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MOUNTING INFORMATION |
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| Overall Diameter | 21.46" / 545mm |
| Baffle Cutout Diameter | 19.25" / 488.2mm |
| Bolt Circle Diameter | 20.47" / 520mm |
| Overall Depth | 9.74" / 247.5mm |
| Flange Thickness | 0.95" / 24mm |
| No. Of Mounting Holes | 8 |
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THIELE-SMALL PARAMETERS |
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| Resonant Frequency (fs) | 41 Hz |
| Impedance (Re) | 5.3 ohms |
| Coil Inductance (Le) | 1.4mH |
| Mechanical Q (Qms) | 9.886 |
| Electromagnetic Q (Qes) | .434 |
| Total Q (Qts) | .416 |
| Compliance Equivalent Vol. (Vas) | 200.61 Liters/7.08cu. ft. |
| Voice Coil Overhang (Xmax) | 5.9mm |
| Xmax (Peak to Peak) | 31.7mm |
| BL Factor (BL) | 31.72 |
| Surface Area of Cone (Sd) | .173m2 |
| Reference Efficiency | 3.08% |
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Low Frequency Response |
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| Mounting Dimensions | |
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US Speaker, LLC
