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White 18AWG 4-conductor speaker wire on spool, 999.74 ft

Monoprice Inc.

Monoprice Inc. 116077 Speaker Wire 18AWG 4-Conductor 1000ft White

SKU CH-A9GT-01HEP

CL3-rated 18AWG four-conductor speaker wire on a 1000ft reel for in-wall home audio installs

  • Connector count4
  • Product typeSpeaker Wires
  • Product colorWhite
  • Overall length999.74 ft (305 m)
  • High-purity copper exceeds 99.95% purity for low resistance
  • Four colour-coded conductors simplify polarity identification during installation
  • CL3-rated jacket meets fire-safety codes for in-wall residential runs
  • 1000 ft continuous length covers whole-home audio without splices
  • 18 AWG gauge keeps voltage drop minimal on long speaker runs

Monoprice 18AWG 4-Conductor Speaker Wire

This 18AWG speaker wire uses four high-purity oxygen-free copper conductors for reliable audio signal transmission. The colour-coded PVC jackets on each conductor simplify polarity identification during installation. It is supplied as a 1000ft reel for whole-home or multi-room wiring projects. The white CL3-rated outer jacket meets fire safety requirements for in-wall residential use.

CL3 Rating and Resistance Limits

The CL3 rating confirms compliance with fire safety and insurance standards for installation inside residential walls. Total wire resistance should remain below 5% of the speaker's lowest impedance to avoid audible effect. Pure bare copper construction provides significantly better conductivity than copper-clad aluminium alternatives. The 68% conductivity figure for CCA illustrates the performance gap compared to this oxygen-free copper design.

Installation Practicalities

Colour-coded individual jackets make polarity matching straightforward when terminating connections. The 1000ft length requires planning for pull routes and slack management in wall cavities. White outer jacket may show marks or dirt during handling in unfinished spaces. Buyers needing pre-terminated connectors or shorter ready-made lengths should consider alternative products.

How it compares

Measured against everything we stock in Speaker Wire & Speaker Cables, at today’s prices. Recalculated every night.

Price $347.99
Pricier than about 93% of the 295 comparable items (median $38.99).

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Specifications

Product
Brand nameMonoprice
Model name116077
Product typeSpeaker Wires
Product colorWhite
Ports & slots
Connector count4
Size & build
Overall length999.74 ft (305 m)

Questions about this item

Should I pick the 18AWG 4-conductor 1000 ft reel or a different gauge for my home audio runs?

The 18AWG 4-conductor reel gives you 999.74 ft of pure bare copper with colour-coded PVC jackets, suited for typical residential speaker runs where total wire resistance stays below five percent of speaker impedance.

What does the 99.95 % pure oxygen-free copper claim mean once the wire is installed in walls?

It means each of the four conductors is greater than 99.95 % pure bare copper, keeping resistance low so the amplifier sees nearly the speaker's true impedance curve instead of added CCA resistance.

The listing mentions CL2 and CL3 ratings — which one applies and what does it cap in practice?

The cable assembly carries a CL3-rated white PVC jacket, certifying it meets fire-safety and insurance requirements for in-wall use in residential buildings.

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