TVi's premium road tough coating.
Quick Release Pin connections for quick and easy angle adjustments.
Ergonomic handles
Steel Hardware for safe 7:1 load factor.
Loaded with two 18" woofers.
specifications c-218-12
Long Excursion Sub (NL4) 2×18″
Frequency Response (+/-3 dB) 30 Hz – 250 Hz
Program Power (watts) LF-2400
RMS Power (watts) LF-1200
SPL & Sensitivity (1w/1m) 137dB / 103dB
Coverage Angle Long Excursion
Nominal Impedance LF-4ohm
Dimensions (HxWxD) 32″ x 31.4″ x 20.4″
Weight & Material 154.32 lbs 3/4″ birch plywood


C-218 Amplification

C-218 (1100 series) 2 channel amplifier module
(Designed to power one or two C-218-10, 12 or 12ii enclosures in bi-amp)

A single two channel “ICE” powered class D amplifier module can power one or two C-218 subwoofer enclosures. Amplifier channel one powers the right side driver and channel two powers the left side driver of one or two subwoofer enclosures. When powering one C-218 enclosure it is an 8 ohm load for each channel. When powering two C-218 enclosures it is a 4 ohm load for each channel. The amplifier module has been designed to fit securely into the enclosure and offers the ability of powering itself plus one additional non-powered C-218 by linking an NL4 connector cable. Each amplifier is powered by multiple “ICE” power modules and offers an integrated active crossover system along with DSP correction that has been fine tuned in an anechoic chamber to provide the user with chambered flat response.

  • Powered using multiple “ICE” power modules
  • Ultra light weight digital switching technology (8 lbs)
  • Built in DSP correction software
  • Built in digital crossovers to optimize power and clarity
  • Chamber tuned for suggested phasing a flat response correction
  • Durable and heat resistant design to eliminate pre-mature thermal protection
  • Non-powered enclosures are connected to powered enclosure with NL4 patch cables
  • Linkable “Neutrik Power-con” connection capable of 110v or 220v
Installation Process

When installing the amplifier pack, remove the passive panel on the back of the enclosure by un-screwing the t-nut bolts. Once the passive panel has been removed, connect the amplifier by following the simple color coded diagram provided. Once the amplifier has been properly connected, slide the amplifier module into the enclosure and secure with the t-nut bolts.

Link the second passive C-218 to the first with standard NL4 patch cable. Amplifiers are powered by a linkable “Neutrik Power-con” connection and capable of 110v or 220v. Amplifiers ordered for a specific voltage must me slightly modified when changing voltage. Please contact a TVi reprehensive for more information about this. Please see the data sheets for more detailed information on this amplification.