Presence Deluxe Line Stage Mark II Dual Mono Construction using Copper Plated Steel Chassis Step Attenuators, Ladder Type using Holco Resistors, designated as LTH 92 Custom Machined 1/4 inch Black Anodized Aluminum Faceplate Deluxe Wiring Configuration SPS 2.0 External Power Supply using High Performance Components Deluxe Power Supply Upgrade