Monoprice 103844 12AWG CL2 Speaker Cable 250ft In-Wall

The Monoprice 103844 is a 250-foot spool of 12AWG, 2-conductor speaker cable built specifically for permanent in-wall residential installation. The 12AWG gauge is the key specification here: at this conductor cross-section, DC resistance stays low enough that even 80–100 foot runs to remote speakers won't measurably degrade amplifier damping factor or frequency response. Pair that with 99.95% oxygen-free copper conductors and you're starting from the right electrical foundation — OFC minimizes resistive losses and, more importantly for a sealed-in-wall installation, resists the oxidation at bare termination points that causes signal degradation over years of service.

The CL2 white outer jacket is the detail that makes this cable suitable for its intended use. CL2 certification means the jacket has passed UL's flame-spread and smoke-emission tests for cables routed inside residential wall cavities — it's the minimum required rating under the National Electrical Code for this application. The individual color-coded inner conductor jackets are a practical addition: maintaining correct polarity across every speaker in a multi-zone system is non-negotiable for phase coherence, and having a clear visual reference at every termination point prevents wiring errors on long, complex installs. This is bulk wire priced and packaged for contractors and serious DIYers running whole-home audio, not for connecting a single bookshelf speaker.