The QED QX16/4 PVC is a professional-grade 4-core installation speaker cable from QED's Professional series, designed for residential and commercial multi-room and home cinema installations where low smoke zero halogen (LSZH) cables are not specified. It sits alongside the QX16/2 (2-core) variant in the QX16 series, which is also available in LSZH and PE Outdoor jacket options for installations with more stringent specification requirements.
Construction
Each of the four conductors is built from 30 strands of 0.26mm high-purity copper wire, giving an AWG 16 gauge cross-section of 1.5mm² per core. The four cores are colour-coded with red, black, white, and green insulation sheaths for straightforward identification during installation. The outer jacket is a white flame retardant PVC rated to meet and exceed IEC 60332-1, with an overall outside diameter of 7.20mm.
Performance
The large cross-sectional area of the copper conductors ensures low resistance at 13.3 Ω/km, maintaining consistent signal delivery even on longer cable runs typical of multi-room and commercial installations. The cable is rated for a dielectric strength of 600kV AC.
Installation Features
The cable is sequentially metre-marked with a countdown print, so installers always know how much cable remains without needing to measure. This 100m length is supplied in QED's PRObox format — a compact dispenser box designed for clean, tangle-free pulls on site. A 300m reel is also available for larger projects. The 4-core configuration supports bi-wiring of a single speaker run or parallel wiring of two speaker zones from a single cable pull.
Compliance
The QX16/4 PVC is fully RoHS2 compliant. Its flame retardant design meets and exceeds IEC 60332-1 testing requirements.
| Cable Type | 4-core speaker cable |
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| Conductor Gauge | 16 AWG |
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| Conductor Construction | 30/0.26 stranded high-purity copper |
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| Cross-Sectional Area | 1.5mm² per core |
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| Resistance | 13.3 Ω/km |
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| Dielectric Strength | 600kV AC |
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| Insulation Colours | Red, Black, White, Green |
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| Jacket Material | White PVC (flame retardant) |
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| Outside Diameter | 7.20mm |
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| Weight | 98 kg/km |
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| Flame Rating | IEC 60332-1 |
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| Compliance | RoHS2 |
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| Supply Length | 100m PRObox |
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| Metre Marking | Sequential countdown |
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| Also Available As | 300m reel |
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