Check the listing for details. Lava Cable Retro Coil Instrument Cable Metallic Blue, 20' Angled-Straight. Condition: New. Listed at 78.99 USD. Coil Cables for the Performing Musician Lava Cable’s revolutionary Retro Coil instrument cables feature a proprietary outer jacket made from a unique hybrid elastomeric polymer blend that makes it one of the most rugged and lightweight coil cables we’ve seen here at Sweetwater. The jacket material also allows for a rainbow of vibrant, brilliant colors like nothing we’ve ever seen before. Retro Coils pass signal better than other coil cords because the tone-killing effects of high capacitance are minimized by using a 99.99% pure oxygen-free copper low-strand-count conductor and spiral shield as well as a nitrogen-injected FPE dielectric that dials in the ideal amount of capacitance to sound just right — neither too dark nor too bright.