Profile: J & C Group, Inc. specializes in coil winding. Our products include capacitors, coils, resistors, crossovers, binding posts, speaker handles, terminal cups, protection devices, L-pads, hookup wire and solder. Our resistors are constructed for applications requiring minimal board space, low heat dissipation, and low cost. These audio grade resistors are packaged in a nonflammable cement casing and with an inorganic potting mix. This combination provides resistance to the elements and high thermal conductivity.