500FT 18AWG Shielded Plenum Bulk Speaker Wire
This 500FT 18AWG shielded plenum bulk speaker wire is engineered for professional audio installations requiring fire-rated cable solutions. The plenum-rated construction meets building codes for installations in air handling spaces, while the shielded design minimizes electromagnetic interference and crosstalk. Perfect for commercial venues, corporate facilities, educational institutions, and integrated audio systems where code compliance and signal integrity are critical.
The 18AWG gauge provides optimal impedance matching for mid-range speaker applications, delivering clear audio reproduction across standard commercial audio frequencies. Whether you're running a distributed speaker system or connecting multiple zones, this bulk speaker wire offers the reliability and performance professionals demand.
Key Features
-
Plenum-Rated — Meets fire safety codes for air handling spaces and suspended ceilings
-
Shielded Design — Reduces EMI and RF interference for clean audio signal transmission
- 18AWG Conductor — Ideal impedance for commercial speaker systems and mid-range applications
-
500FT Bulk Length — Cost-effective solution for large installations and system expansions
- Professional-Grade Construction — Durable jacket and reliable copper conductors for long-term performance
- Flexible Installation
— Easy to route through walls, conduit, and cable trays
Technical Specifications
| Specification |
Details |
| Part Number |
29207 |
| Conductor Gauge |
18AWG |
| Total Length |
500 Feet |
| Shielding |
Yes — Shielded |
| Plenum Rating |
Yes — Plenum-Rated |
| Cable Type |
Bulk Speaker Wire |
| Application |
Commercial Audio Systems, Distributed Speaker Networks |
| Fire Rating |
Plenum (CMP) Compliant |
Frequently Asked Questions
What is plenum-rated speaker wire used for?
Plenum-rated speaker wire is designed for installations in air handling spaces, such as suspended ceilings and HVAC plenums, where building codes require fire-safe materials. This shielded plenum bulk speaker wire ensures compliance while maintaining audio quality in commercial installations.
Why choose shielded speaker wire for audio systems?
Shielded speaker wire reduces electromagnetic interference and RF noise, resulting in cleaner audio signal transmission. This is especially important in environments with multiple electronic devices, making it ideal for commercial venues and professional installations.
How much speaker wire do I need for a large installation?
The 500FT bulk length provides ample cable for extensive distributed speaker systems, multiple zones, or large commercial venues. Calculate total run distances and add 10-15% for routing flexibility and connections.
Is 18AWG appropriate for my speaker system?
18AWG is ideal for mid-range speaker applications and standard commercial audio systems. For longer runs (over 100 feet) or high-power applications, consult impedance charts to ensure optimal performance.
