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HDC3.115 SoundQubed 15" Subwoofer

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 Product Description

The HDC series isn’t just some off the shelf woofer designed in the virtual world.  It is the product of over two years and hundreds of hours of real world research and development. Many of the HDC’s features are only found on woofers costing twice the price. When compared to our competition the HDC series woofers have more cooling, more throw, more motor force, and stronger cones. These woofers work great in everyday street beating or all out gut wrenching SPL builds. We have spared no expense to give you the best subwoofer value on the market today.


HDC Coils

The HDC comes with your choice of  a four layer, round wound, dual 1ohm or dual 2ohm copper coil.


Suspension systems are generally a weak link in a woofer design, and often the primary reason for woofer failure. Over time, especially in high power applications, suspension begins to sag and as a consequence it can no longer control the voice coil’s movement. This generally results in a torn suspension or smashed voice coil.  To avoid this we use a multiple spider configuration engineered to maintain rigidity over extended periods of heavy use. We also hand glue our triple joints to allow for better glue penetration and saturation of the high stress areas. 


High excursion subwoofers require a lead wire system that doesn’t flop all over the place or break. We use the direct connect system (no terminals) because it works the best. With our direct connect system you get no annoying lead slap noise, no rips or holes burnt in the spiders, and no flimsy lead-in wires.

Note: Parameters taken of random single sampling of NIB subwoofers with no pre-break-in.

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Model HDC3.115
Woofer Size 15"
F(s) 49 Hz
R(e) 2.33 (Ohms)
Z(max) 28.25 (Ohms)
Q(ms) 8.761
Q(es) 0.790
Q(ts) 0.725
V(as) 70.421 liters (0.717^ft)
L(e) mH
n(0) 0.37%
M(ms) grams
C(ms) mm/N
Sensitivity 1W/1m 91.532db 1W/1m
Xmax (Peak to Peak) 36mm
Magnet Weight 300oz
Coil Diameter 3.0"
Coil Length 54.229mm
Usable Throw 68mm
RMS Power 1500W
Peak Power 4500W
Displacement .17^ft
Mounting Depth 8.875"
Circle Cutout 13.75"
Outer Diameter W/Gasket 15.625"

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