This is the latest version of the Acoustic Revive RTP-4, a totally passive power conditioner with multiple EMI/RFI and vibration absorbing materials cast into its beautifully CNC machined aluminum chassis. Now with Furutech GTX-D NCF receptacles and FI-06 NCF IEC inlet. Furutech provides the receptacles and inlet with special gray covers exclusively to Acoustic Revive for use in the RTP series. For users committed to their GTX-D NCF wall receptacles and needing matching power distribution, this is the way to go. U.S. retail is $3675. This unit is mint and I will sell for $1950 plus shipping.