Systems ListDIYRE Audio XXX-18D2 Power Ported

ManufactureDIY
System typeVented
DriverRE Audio XXX
Driver Size18 "
Number of drivers1
Internal volume25 ft3
External volume34.45 ft3
Dimentions (Width × Height × Depth)41 " × 66 " × 22 "
Weight320 lbs
Native Tuning Frequency11.5 Hz
ActiveNo
Aprox. Price$2000 USD
Year2010

Notes

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At 34.5 cubic feet of external volume and an estimated 320lbs this custom systemrnis by far the largest that has been tested thus far. The huge enclosure enablesrnthe system to have very deep extension and a tuning of around 12Hz whilernutilizing a 10" diameter port. This system was designed some years back in an effort to produce a system with full power output down to 10Hz and to assess the performance of the port system employed. The port design was borrowed from PolkrnAudio – a patented design from the nineties called the power port that isrnsupposed to allow a controlled and constant expansion at both port ends allowing for greaterrnair speeds before compression while also allowing the use of a shorter portrnlength for the desired tuning. Nathan Funk of Funk Audio was commissioned to build the enclosure design and no expense was spared on the materials, build or finishing. This system demonstrates tremendousrnlow end SPL, but has mediocre upper bass output as a result of the XXX 18 driver’s very low sensitivity. The power port system works very well with huge masses of air moving through the port into the room with barely a hint of chuffing at full output. Unfortunately the added complexity and design time required for this type of port limit its use. This is the first system tested by Data-Bass to provide in excess of 100dB at 10Hz at 2 meters outdoors. A simply massive 114dB was recorded at 12.5Hz under the same conditions which further confirms the visceral room shaking power this system possesses once inside of a typical room. 

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