Our CAB (Car Audio Bargain) Ultra 12" was a design that we bought from Sundown Audio (Formally the SA-Ultra). This was designed and assembled in the USA. These will only be available in batches as we will only sell what we have built, as we get more built we will get them listed. Features: 2.5" Copper Coil Aluminium Former Double layer Polly cotton Spider Flat 63 Strand Tinsel leads Vented gap Cast Aluminum Basket Triple stacked .75" magnets 6.7" diameter motor 141 oz Magnets Recommended box specs are: 2ft^3 ported 12-18in^2 of port per ft^3 Tuned to 35hz Specs: D2 D4 Power 750W RMS 750W RMS RE (ohms) 3.79 Ohms 6.02 Ohms FS (HZ) 29.75 HZ 32.21 HZ VAS (L) 52.0L 58.8L Qes 0.45 0.44 Qms 4.83 4.42 Qts 0.41 0.40 BL (NA) 18.20 NA 20.25 NA Mms (Grams) 210 g 151.28 g Cms (uM/N) 135 uM/N 161.38 uM/N Sens (1w/1m) 86.58 DB 88.15 DB
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