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TC Sounds LMS Ultra 5400 18" DVC Subwoofer

Brand:|Model: LMS Ultra 5400|Part # 293-666

The TC Sounds LMS Ultra 5400 18" DVC subwoofer uses a combination of sophisticated, patented technology and elegantly executed brute strength to achieve its deserved standing as the loudest, lowest, cleanest mass-produced subwoofer speaker in the world.
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Comparable Items Can Be Found Here:
Part # 293-666
  • High-temperature low eddy-current stainless steel voice coil former
  • Patent-pending LMS motor technology, 2+2 ohm 4" diameter dual voice coil
  • 11" linear spider suspension with large integral lead-wires
  • 525 oz. magnet motor structure with large anti-flux-modulation shorting ring
  • Patent-pending XBR tall profile surround for 3" peak-to-peak travel
  • Large anti-flux-modulation shorting ring
  • Single dish aircraft-grade aluminum alloy cone

Product Details

TC Sounds LMS Ultra 5400 18" DVC Subwoofer

Designed to be absolutely precise, and absolutely loud is the LMS Ultra 5400. The TC Sounds flagship transducer is the most linear lowest distortion highest displacement low frequency driver in the world. Nothing, and we mean nothing, will outperform this driver for low-end displacement, ultra-low distortion, or SPL. The TC Sounds LMS Ultra 5400 is used in some of the best recording studios and high-end audio systems.

TC Sounds LMS Ultra 5400 18" DVC Subwoofer includes the following items:
Qty Part # Item
1293-668TC Sounds LMS Ultra 5400 18" Basket Assembly
No substitutions allowed. The above may include some items that are not available for purchase separately.

Product Specifications
  • Nominal Diameter18"
  • Power Handling (RMS)2,000 Watts
  • Power Handling (max)8000 Watts
  • Impedance2+2 ohms
  • Frequency Response15 to 150 Hz
  • Sensitivity89.7 dB 1W/1m
  • Voice Coil Diameter4"
  • Magnet Weight525 oz.
Thiele-Small Parameters
  • Resonant Frequency (Fs)20.5 Hz
  • DC Resistance (Re)3.78 ohms
  • Voice Coil Inductance (Le)1.96 mH
  • Mechanical Q (Qms)7.6
  • Electromagnetic Q (Qes)0.34
  • Total Q (Qts)0.33
  • Compliance Equivalent Volume (Vas)8.5 ft.³
  • Mechanical Compliance of Suspension (Cms)0.12 mm/N
  • BL Product (BL)26.8 Tm
  • Diaphragm Mass Inc. Airload (Mms)501.3g
  • Maximum Linear Excursion (Xmax)33.66 mm
Materials of Construction
  • Cone MaterialAluminum
  • Voice Coil FormerStainless Steel
  • Basket / Frame MaterialCast Aluminum
  • Magnet MaterialFerrite
Mounting Information
  • Overall Outside Diameter18.52"
  • Baffle Cutout Diameter16.83"
  • Depth11.54"
  • # Mounting Holes8
Optimum Cabinet Size (determined using BassBox 6 Pro High Fidelity suggestion)
  • Sealed Volume1.38 ft.³
  • Sealed F353 Hz
  • Vented Volume3.4 ft.³
  • Vented F333 Hz
TC Sounds LMS Ultra 5400 18" DVC Subwoofer
  • BrandTC Sounds
  • ModelLMS Ultra 5400
  • Part Number293-666
  • UPC844632083006
  • Product CategorySubwoofer Drivers
  • Unit of MeasureEA
  • Product Rating
    (7 Reviews)
  • Weight86.2 lbs.
  • California Prop 65

    Warning: California residents only. Please note per Proposition 65 that this product may contain chemicals known to the State of California to cause cancer and birth defects or other reproductive harm.

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TC Sounds LMS Ultra 5400 18" DVC Subwoofer


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