Description
Sundown Audio ZV7 12 D2
The Z v.7 is the third step up in Sundown’s 2025 “ultra-high excursion” sub-woofer lineup after the M and X v.4 series. All models (12,15,18) feature our custom tooled and patented frames (US Patent Numbers D691597, D691598, and D741841) – the Sundown “mega-platform.” Please note – the Z v.7 is not available, aside from special orders, in 10s due to the motor size.We mate these new platform frames to a quad stacked 265mm (10.43”) diameter motor structure with a total magnet stack height of 100mm (3.94”) featuring a hyper-extended pole and extreme clearances (allowing over 4″ p-p travel before mechanical bottom effectively making it bottomless). This is, by far, the largest motor we have ever produced on a Z series sub-woofer. The motor force factor (BL^2/RE) is ~50% higher than the previous generation Z v.6 series.This motor drives a 3.3″ diameter 4-Layer Round Wire Aluminum Voice Coil wound on a thick aluminum former. These new round wire coils use a special Sundown designed “fat wire” winding method to handle significant amounts of power and abuse.
Specifications
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RMS Power (D2)
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RMS Power (D1)
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Peak Power (D1)
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Peak Power (D2)
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RE D1 (Ohms)
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RE D2 (Ohms)
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FS D1 (Hz)
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FS D2 (Hz)
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VAS D1 (L)
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VAS D2 (L)
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Qes D1
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Qes D2
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Qms D1
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Qms D2
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Qts D1
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Qts D2
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Le D1 (mH)
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Le D2 (mH)
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BL D1 (NA)
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BL D2 (NA)
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Mms D1 (Grams)
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Mms D2 (Grams)
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Cms D1 (uM/N)
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Cms D2 (uM/N)
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Sens D1 (dB @ 1w/1m)
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Sens D2 (dB @ 1w/1m)
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Xmax D1
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Xmax D2
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| Subwoofer Measurements | |
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Cutout (Inches)
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| Ported Enclosure Specs | |
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Ported Enclosure Size
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Recommended Port Area
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| Sealed Enclosure Specs | |
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Sealed Enclosure Size
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| 4th Order Enclosure Specs | |
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4th Order Sealed Side
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4th Order Ported Side
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4th Order Port Area
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4th Order Port Length
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