QED approach the Reference Digital Optical interconnect with a no compromise attitude. Ther Reference digital optical lead is sure to bring out the best in your home entertainment system but the great news is that it won't break the bank! With a fine selection of high quality material used to transmit a flawless signal, the Reference digital optical cable redefined mid level optical leads. The QED Reference Digital Optical Interconnect is used to connect your CD or DVD Player to your AV Amplifier or Receiver. Available in a 1m or 3m length. Feel free to contact us for any further info on the QED Reference digital optical cable.