Midwest Car Audio

1993 GMC YUKON
8- 12" ULTRA CUSTOM LVSS SUBS
4- ULTRA 1600 MONO BLOCK AMPS
1- ULTRA 4200 4 CH AMP
2PR- ULTRA SS 6.5" COMPONENT MID AND 1" TWEETS

IT'S CHRISTMAS

ULTRA 12" CUSTOM LVSS

Sick dude! What are the specs on those subs?

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Ultra series LV 12 offers incredible performance in sealer enclosures with as little as .4 cubic air feet. In a ported enclosure you only need 1 cubic foot for exceptional performance. If you want to be blown away then try it in a 1.5cubic airspace ported enclosure. No matter what application you choose the Ultra series woofers will exceed your expectations.

MSRP $399.99



Thiele Small Parameters: 12”

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Nominal Impedance Znom ohms 4.0

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DC Resistance DCR ohms 3.05

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Resonant Frequency Fs Hz 24.5

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Mechanical Q Qms 4.2

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Electrical Q Qes 0.44

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Total Q Qts 0.4

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Xmax (linear) in 13

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Xmax (mechanical) in 0.000

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Sensitivity 2.83 volts dB 89.3

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Effective Piston Area Sd m2 0.045

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Acoustic Compliance Vas liters 68.3

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Moving Mass Mms grams 179

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Suspension Compliance Cms ?m/N 235.5

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Motor Strength BL TM 13.75

Magnet and Voice Coil:

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Voice Coil Diameter d in 2.5"

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Voice Coil Length hvc in 1.4"

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Voice Coil Layers n 4

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Voice Coil Type Single

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Continuous Power watts 500

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Maximum Power watts 1000

Weights and Dimensions:

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Magnet OD in 2.625

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Magnet Thickness in 6.15

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Frame OD w/gasket in 12.55

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Mounting Hole in 11.35

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Mounting Depth in 6.25

www.ultrasubs.com

Any Updates?

still in progress just got it back from the paint shop

Well lest see some pics!

well you sure got my attention!!!!

pics.....