| Color | Black |
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| Manufacturer's Suggested Retail Price | $177.00 |
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| UPC | 644216203208 |
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| Manufacturer | SoundTube |
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| Manufacturer's Category | SMi Surface Mounts |
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| Height | 6.97 in / 177 mm |
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| Width/Diameter | 9.68 in / 245.9 mm |
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| Carton Height | 9.5 in / 241.3 mm |
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| Carton Length | 11.75 in / 298.45 mm |
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| Carton Width | 9.25 in / 234.95 mm |
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| Certifications | CCC, CE, RoHS, UL1480A |
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| Enclosure Properties | ABS Glass Fiber Reinforced, Injection Molded, Ported |
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| Enclosure Volume | 154.7 cu in / 2535.08 cu cm |
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| Included Accessories | Euroblock, Port Plug, Safety Cable, Terminal Weather Boot, U-Bracket |
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| Optional Accessories | Black Grille (GRL-SM400-BK)|Black Bracket (AC-SM4-BK)|10" Safety Cable (AC-SM-SC10)|Black Weatherboot (WEATHERBOOT-S-BK)|Connector (EUROBLOCK) |
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| Source Inputs | 4 Pin 5.08mm Euroblock |
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| Shipping Weight | 7.3 kg / 3.31 kg |
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| Crossover Frequency | 2.3 kHz |
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| Directivity Factor (Q) (Averaged 100Hz - 10kHz, @ 2kHz) | 3.7 and 3.9 |
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| Directivity Index (DI) dB (Averaged 100Hz - 10kHz, @ 2kHz) | 4.9dB and 5.9dB |
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| Frequency Response (+/- 10 dB) | 76 Hz - 22 kHz |
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| Frequency Response (+/- 3 dB) | 97 Hz - 22 kHz |
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| Grille Properties | Aluminum, Powder-Coated |
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| Low Frequency Voice Coil | 1 in / 25.4 mm |
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| Low Pass Crossover | 12 dB per octave 2nd order |
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| Magnetically Boosted | No |
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| Max. Continuous Power RMS | 20W |
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| Max. Program Power | 35 W |
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| Minimum Impedance (O Ohms) | 3.7 O |
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| Mounting Depth | 7.47 in / 189.7 mm |
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| Network Type: High Pass | 12 dB per octave 2nd order |
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| Nominal Impedance (O Ohms) | 4 O |
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| Tweeter Driver | 1" Convex Aluminum w/ BroadBeam Waveguide |
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| Woofer Driver | 4" Polypropylene |
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| Sensitivity dB @ 1W/1M | 82.5 dB |
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| Sensitivity dB @ 2.83V/1M | 85.5 dB |
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| Tap Selector | Rotary Switch |
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| Transformer Options | 25 / 70.7 / 100 V, 4 Ohm direct |
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| Transformer Taps (25V/70.0V/100V) | 2.5W/20W/20W |
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