World dB drag SPL records:
o 180.5 dB, Alan Dante's concrete filled Volvo with a single Digital Designs 9918Z 18" subwoofer (3" dual voice coil 0.5 ohms) and four Stetsom 7KD amplifiers (26 kW) and fifteen Powermaster 16V batteries and a 61 Hz sine signal source.
o 172.2 dB, Alma Gates' Bronco has 64 PPI Pro 10" drivers and 32 PPI PC2350 amplifiers (45 kW). The 1" thick plate glass windows have survived 172.8 dB. Her signal source is track 61 on the dB jams CD, which is a 39 Hz Triple Tone Burst (unclipped sine, 50%, 100% clipped square) which was then ran thru a tripling gimzo to generate a 117 Hz tone. From the outside, Alma Gates' Bronco was described as like "metal being beat to death, it sounds like a machine gun or something." Rumor is that she is adding another 20 PPI 10" subs.
o 171.3 dB, 2nd place, Jeff ???, 12 Stroker 15D2's and 7.2 kW of power, only 0.9 dB behind team Gates with a fraction of the drivers and wattage.
1sub DDZ (9912)
2 monoblok DD Z1a
The Z1a makes incredible amounts of power from stock electrical systems; it was designed to make the most power from limited current supplies. The high efficiency comes from paying close attention to every stage through the amp circuit. Multiple power supplies, high speed controller chipsets, efficient power devices and precise thermal management were key to the Z1a design.
These attributes make the Z1a at home in world record spl cars or high powered subwoofer systems where 400 pounds of battery bank aren’t possible. One Z1a amp can power several big-time subwoofers to stupid loud levels when called upon, or dazzle with rock solid control of complicated bass lines. Z1a's are limited production, high-end amplifiers for customers who want the best.
Voice Coil Diameter..................76.2mm
Magnet Weight.......................7 kilotons
Power Handling RMS/Music/Peak...if you need to ask...
Sub DDZ12 / 9912 berapa watt ???Alan Dante from Lorton, Virginia, set a new world record on August 31st in a dB Drag competition with a 180.5dB peak using a single Digital Designs subwoofer. Dante’s concrete filled Volvo contained a Digital Designs 9918Z 18″ subwoofer receiving 26,000 watts of power from four Stetsom 7KD amplifiers.
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