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Black 18AWG 4-conductor CMP speaker wire on spool

Monoprice Inc.

Monoprice Inc. 116173 18AWG 4-Conductor CMP 1000ft Black speaker wire

SKU CH-V7NJ-4CVFQ

Four-conductor 18AWG plenum-rated speaker wire with oxygen-free copper conductors, supplied in a 1000ft black reel for commercial and residential installations

  • TypeSpeaker Wires
  • ColorBlack
  • Length999.74 ft.
  • Connector Number4
  • CMP plenum rating allows safe in-wall installation
  • 100 % oxygen-free copper delivers clear audio reproduction
  • Four conductors simplify dual-speaker wiring runs
  • 18 AWG gauge suits typical home-theatre distances
  • 1000 ft spool covers whole-house installations

Commercial Plenum-Rated Speaker Wire

Monoprice model 116173 is an 18AWG four-conductor cable rated CMP for installation in plenum air spaces of commercial buildings. The black jacket meets fire-safety requirements for ductwork and ceiling voids. It ships as a 999.74 ft reel for long continuous runs.

Four-Conductor Layout Simplifies Stereo Pairs

A single pull carries both left and right channels to a speaker pair, halving the labour of separate two-conductor runs. The colour-coded inner jackets keep polarity straight without extra labelling. CMP rating means no additional fire-barrier sleeving is required in plenum spaces.

Oxygen-Free Copper Conductors Preserve Signal

One hundred percent pure bare copper reduces resistance and oxidation over the full reel length. The material choice maintains clarity on extended runs where thinner or alloy conductors would degrade high-frequency detail. Lifetime warranty covers the cable against manufacturing defects.

Highlights

  • CMP plenum rating allows safe in-wall installation
  • 100 % oxygen-free copper delivers clear audio reproduction
  • Four conductors simplify dual-speaker wiring runs
  • 18 AWG gauge suits typical home-theatre distances
  • 1000 ft spool covers whole-house installations

Specifications

BrandMonoprice
Model116173
TypeSpeaker Wires
ColorBlack
Length999.74 ft.
Connector Number4

Questions about this item

What is the maximum run length before 18 AWG resistance affects speaker performance?

The spool provides 999.74 ft of 18 AWG oxygen-free copper; voltage drop depends on speaker impedance and amplifier power, so calculate your specific run against the wire's resistance per foot.

Does the CMP-rated jacket add noticeable stiffness or heat retention during all-day installed use?

The plenum-rated jacket is treated for fire resistance and meets UL CMP requirements for air-handling spaces; it remains flexible for pulling through ducts and does not generate heat in passive speaker-level signals.

What termination hardware is needed to connect the four colour-coded conductors to speakers and amplifier?

Each of the four bare copper conductors must be stripped and terminated with your choice of banana plugs, spade lugs, or bare-wire binding posts; no connectors are included on the spool.

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