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Designed for the transmission of sound through noisy areas the balanced quad cable is used as a twisted pair with capacitance unbalance characteristics designed to cancel out the worst kind of interference – external noise. To achieve this four insulated conductors are twisted together with a very short lay length, the insulation thickness on each conductor being closely controlled to match capacitance as closely as possible. Screen is helically wound overall. The product is a flexible high quality cable for use in electrically hostile environments. Core and screen construction conforms to the relevant part of BBC PSF4/1M specification in all cables, as detailed in the Technical Specification below.

This is the same construction as SQ 6.5, but with a matt black polyurethane jacket – incredibly tough and resilient, and which remains flexible in sub-zero arctic conditions. Ideal for outside broadcast and film work, ENG operations, on-stage PA and theatre work.

Technical Specification:
BBC Specification: Cores and screen conform to PSF4/1M
Conductors: 14/0.122mm (0.158mm²) tinned copper wire
Insulation: PVC, O.D. 1.10mm, red, green, blue, white
Lay up: Four wires twisted together with lay length 13.0mm
Screen: 48/0.15mm tinned copper wire, helically wound
Overall jacket: Polyurethane, OD 6.5mm, matt black
Capacitance unbalance: 80pF/m
Weight: 5.6kg/100m
Reel lengths: 1000m
Cut lengths: Available in any multiple of 1 metre
USAGE NOTE: Red + Blue for A leg
Green + White for B leg
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CANFORD SQ-R CABLE 1 quad, Black Black Stock code: 30-440
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1+ £2.86
100+ £2.29
500+ £2.23
1,000+ £2.15
per metre