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Monoprice 111937 16AWG Flat Pure Copper Speaker Wire 250ft — main product image
Monoprice 111937 16AWG Flat Pure Copper Speaker Wire 250ft
Monoprice 111937 16AWG Flat Pure Copper Speaker Wire 250ft
Monoprice 111937 16AWG Flat Pure Copper Speaker Wire 250ft
Monoprice 111937 16AWG Flat Pure Copper Speaker Wire 250ft
Monoprice

Monoprice 111937 16AWG Flat Pure Copper Speaker Wire 250ft

★★★★★4.6 (587 reviews)

Run 250 feet of pure copper speaker wire through walls and tight spaces with this flat, CL2-rated 16AWG cable.

$104.99*
✓ In Stock on Amazon.com
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*Price sourced from Amazon.com. Last updated:Jun 28, 2026.Price and availability are subject to change.

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Overview

The Monoprice 111937 Planate Series speaker wire delivers 250 feet of 16AWG pure bare copper in a flat, PVC-jacketed design built for discreet installation. Unlike copper-clad aluminum wire commonly found at similar price points, this cable uses solid copper conductors throughout, providing lower resistance per foot and more consistent signal delivery—particularly important on longer runs in home theater or distributed audio setups.

Its flat construction is the standout practical feature. Where standard round cable creates visible bumps under carpet or requires larger channels in wall cavities, this wire lies flat and nearly disappears into its surroundings. The CL2 in-wall rating means you can run it through walls permanently and meet building code requirements without additional conduit. Polarity identification is handled by printed markings on one conductor, making it simple to keep positive and negative consistent across multiple speaker connections. At 250 feet, the spool is sized for whole-home installations or multiple room runs from a single purchase.

Key Features

Features cable markings on one of the two conductors

Speaker Wire | comes in a flat package

16AWG Pure Copper Flat Speaker Wire | from Monoprice

Pure Bare Copper is a superior conductor to the copper clad aluminum (CCA) conductors used in most other inexpensive speaker wire.

Specifications

Brand
Monoprice
Model
111937
Type
Speaker Wire/Cable
Gauge
16 AWG
Conductor Material
Pure Bare Copper
Length
250 ft
Jacket Material
PVC
Construction
Flat
Rating
CL2 In-Wall Rated

Pros & Cons

👍 Pros

  • Pure bare copper conductors deliver lower resistance and better signal integrity than budget copper-clad aluminum alternatives.
  • Flat profile fits easily under carpet, along baseboards, and through tight wall cavities where round wire would be cumbersome.
  • CL2 in-wall rating allows permanent installation without requiring conduit.
  • 250-foot spool provides enough length for whole-room or multi-room speaker runs from a single purchase.
  • Conductor markings on one wire make it easy to maintain correct polarity across connections.

👎 Cons

  • 250-foot spool may be more wire than needed for a single-room setup, with no shorter length option in this SKU.
  • 16AWG may not be sufficient for very long runs exceeding 50 feet to low-impedance speakers where 14AWG or thicker would reduce loss.
  • Flat wire can be harder to strip cleanly compared to standard round speaker cable.
  • No connectors or terminations included—bare wire ends require manual stripping and connection.

Frequently Asked Questions

Yes, it carries a CL2 in-wall rating, meaning its PVC jacket meets fire safety standards for permanent in-wall installation.
One of the two conductors has cable markings printed on it, so you can maintain consistent polarity across all your speaker connections.
Pure bare copper has lower electrical resistance than copper-clad aluminum (CCA), which means less signal loss over long runs and more accurate sound reproduction.
Yes, the flat profile is specifically designed for low-visibility installations under carpet, along baseboards, or behind flat surfaces where round cable would create a noticeable bump.

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