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Keep any restrictive materials such as wood, hard plastic or metal from directly blocking the subwoofer. Sedan Installation Wiring 2 ohm subwoofers One 2. sub Two 2. subs, series Two 2. subs, parallel Three 2. subs, series Four 2. subs, series/parallel Wiring 4 ohm subwoofers One 4. sub Two 4. subs, parallel Three 4. subs, parallel Four 4. subs, series/parallel Four 4. subs, parallel ProSeries Competitor Series Specifications 12.5LF 10.5LF 8.5LF 1500 Nominal Size 12" (30cm) 10" (25cm) 8" (20cm) 15" (38cm) Mounting Cutout Diameter 11" (280mm) 91.8" (232mm) 73.16" (183mm) 137.8" (353mm) Mounting Depth—Front Mounted 55.8" (143mm) 43.4" (121mm) 41.16" (104mm) 73.4" (197mm) Mounting Depth—Rear Mounted 63.8" (162mm) 5" (127mm) 411.16" (119mm) 81.4" (210mm) Recommended Amplifier Power 50–1200 watts 50–1100 watts 50–750 watts 50–1000 watts Nominal Impedance 2./4. 2./4. 2./4. 2./4. ProSeries Competitor Series Theile/Small Parameters 12.5LF 12.5LF 10.5LF 10.5LF 8.5LF 8.5LF 1500 1500 (2.) (4.) (2.) (4.) (2.) (4.) (2.) (4.) Resonant Frequency (Fs) 30Hz 31Hz 33Hz 34Hz 35Hz 36Hz 34Hz 35Hz Equivalent Volume (Vas) 84 liters 84 liters 35 liters 35 liters 21 liters 21 liters 155 liters 155 liters 2.97ft3 2.97ft3 1.24ft3 1.24ft3 0.74ft3 0.74ft3 5.47ft3 5.47ft3 Total Q (Qts) 0.45 0.57 0.44 0.53 0.33 0.40 0.72 0.85 Electrical Q (Qes) 0.47 0.61 0.47 0.57 0.35 0.42 0.81 0.97 Mechanical Q (Qms) 9.8 9.6 8.0 7.8 9.0 9.0 8.3 8.3 Compliance (Cms) 230.m/N 230.m/N 255.m/N 255.m/N 330.m/N 330.m/N 142.m/N 142.m/N Moving Mass (Mms) 121g 117g 90g 86g 63g 60g 148g 145g Cone Area (Sd) 510cm2 510cm2 315cm2 315cm2 215cm2 215cm2 876cm2 876cm2 Voice Coil Diameter 51mm 51mm 51mm 51mm 51mm 51mm 51mm 51mm Voice Coil DCR (Re) 1.6. 3.1. 1.6. 3.1. 1.6. 3.1. 1.6. 3.2. Voice Coil Inductance @ 1kHz (Le) 0.40mH 0.55mH 0.40mH 0.55mH 0.40mH 0.55mH 0.45mH 0.62mH Linear Excursion—One Way (Xmax) 8.5mm 8.5mm 8.5mm 8.5mm 8.5mm 8.5mm 5.5mm 5.5mm Peak-to-Peak Maximum Excursion 40mm 40mm 35mm 35mm 35mm 35mm 40mm 40mm Reference Efficiency (. o) 0.46 0.39 0.26 0.25 0.25 0.22 0.73 0.64 We provide Theile/Small Parameters for those interested in studying subwoofers further. We do not recommend you use computer software to determine enclosure sizes or type. While high–end enclosure design software may be useful for engineering purposes, it cannot completely predict performance in a given vehicle and should not replace a real enclosure that has been tested and listened to in a car. Please use our recommended enclosures for optimum performance. Competitor Series (continued) Generator Series 1200 1000 800 GS1500 GS1200 GS1000 12" (30cm) 10" (25cm) 8" (20cm) 10" (25cm) 10" (25cm) 10" (25cm) 11" (280mm) 93.16" (234mm) 71.8" (181mm) 137.8" (353mm) 11" (280mm) 93.16" (234mm) 65.8" (169mm) 6" (153mm) 53.8" (137mm) 63.4" (172mm) 53.4" (146mm) 5" (127mm) 71.8 (181mm) 65.8" (169mm) 57.8" (150mm) 71.4" (185mm) 61.4" (159mm) 51.2" (140mm) 50–1000 watts 50–850 watts 50–500 watts 50–500 watts 50–500 watts 50–400 watts 2./4. 2...

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