Crunch Ground Pounder GP10D2 - Subwoofer Specifications and Troubleshooting; Electrical Specifications; Enclosure Specifications; Troubleshooting Common Issues

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Specifications Measurement GP10D2 GP10D4 GP12D2 GP12D4 GP15D2
NomZ Ohms 2 + 2 4 + 4 2 + 2 4 + 4 2 + 2
Sd sqM 0.0327 0.0327 0.0495 0.0495 0.0809
Revc Ohms 0.95 1.525 0.95 1.525 0.95
BL T x M 9.94 11.3 9.94 11.3 9.94
Vas Liter / Cu.Ft. 18.38/.65 18.38/.65 42.11/1.49 42.11/1.49 112.5/3.97
Cms uM/N 121 121 121 121 121
Mms Grams 164.4 155.4 203.3 194.3 280.2
Fs Hz 35.68 36.7 32.09 32.82 27.33
Qms 3 3 3 3
Qes 0.354 0.428 0.394 0.479 0.463
Qts 0.317 0.375 0.348 0.413 0.401
SPL @ 1W dB 85.76 85.31 87.52 86.97 89
SPL @ 2.83v dB 95.02 92.51 96.77 94.17 98.25
Xmax mm 15 15 15 15 15
Watt @ RMS Watts 500 500 600 600 700
Watt Peak Watts 1000 1000 1200 1200 1400
Sealed
Box Volume Cubic Feet 0.5 0.5 1 1 2
Fc Hz 53.37 54.78 49.99 51.32 46.83
Vented
Box Volume Cubic Feet 0.7 0.7 1.2 1.2 2.5
Fb Hz 37.61 35.14 33.04 33.2 30.82
Port Size Inches D x L 2.5" x 10" 2.5" x 10" 3" x 10" 3" x 10" 4" x 10"
Fp Hz 36.92 36.92 36.34 36.34 32.5
ENCLOSURES
ELECTRICAL
GROUND POUNDER
FORMULA FOR VOLUME:
Volume for cu. Ft.=H (in) X W (in) X D (in) ÷1728
(Divide by 1,728 to convert to cubic feet)
SUBWOOFER SPECIFICATIONS
TROUBLESHOOTING:
Basic Problem Possible Solution
No Sound from Speaker Confirm power is on from all components.
Very Low Sound Adjust fader control. Check connection cables
equipment. Etc...
Unnatural Bass Emphasis Adjust loudness contour. Crossover points, bass
control, etc...
Whining Sound Clean and tighten power/ground connections.
Check all cables and contacts. Check all grounding
points. Check for rear-seat occupant.
Distortion at Very Check gain control Check amplifier input or output
High Listening Levels controls. Check for a blown ear.
No High Frequency Output Check passive crossover/active crossover. Check
all cables and connections.
NOTES