Audiopulse LMS-Ultra 18

Products > Car Audio > Subwoofers

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Design
* Patent pending true linear voice coil with variable density winding pattern
* High thermal dissipation former heat sink design for improved compression limits
* Long throw high temp 4" wide linear voice coil
* 10" linear suspension system with large lead wires for improved durability
* Patent pending NBR tall profile FEA surround for excessive travel
* Massive 4.5" conductive shorting ring to improve linearity
* Single dish anodized and powder coated alloy heat sink cone
* Patented field replaceable top assembly system makes "recones" obsolete
* Patented exclusive high excursion frame assembly
* High BL promotes inherent small box design to save space without compromise
* Distinguished metallic clear blue triple layer powder coated frame

Parameters
Qts 0.31
Re (series) 4.0 ohm
Fs 19 Hz
Cms 140 µM/N
Vas 236 lit
Mms 500 g
BL (series) 27.5 Tm
Sd 27.5 m²
SPL 89.0 dB

Specifications
Voice Coil Configuration dual 2 ohm
Mounting Depth 13.10"
Driver Cutout Diameter 16.79"
Overall Driver Diameter 18.52"
Magnet Weight 525 oz
Driver Weight 80 lbs

Performance
BL²/Re 185 N²/W
Xmax 38 mm
TLS: < 1% BL deviation 30 mm
Recommended Amplification 5000 W RMS
4th order reflex enclosure volume 4.5 - 7.0 ft³
2nd order sealed enclosure volume 3.8 - 6.5 ft³




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