Hi Mjglo,
I have MIT Oracle V2.1 interconnects in my system and I am using a pair between the phono stage and the preamp. The interconnect has an Adjustable Impedance System which is controlled by a sliding switch set to the following positions:
Low 5-50 KOhms
Mid 40-100 KOhms
High 90 KOhms and up
These positions can help you optimize the best setting between the two components. The IC switch is to be set to the input impedance of the component being connected to. In this case your preamp. A quick check on google of Audio Research archives listed the input impedance of the Ref.2 MkII preamp as 132 KOhms balanced or 66 KOhms SE (RCA).
So if using Balanced interconnects you would probably select the High position. If using RCA interconnects then Mid would probably be selected according to this MIT matching system.
Not sure about the Ultra Wide, Wide and EX designations. This might pertain only to the speaker cables. I do know that before the Adjustable Impedance System I had bought some MIT MI-330 Shotgun IC's and had to specify Low, Med or High when ordering.
I have MIT Oracle V2.1 interconnects in my system and I am using a pair between the phono stage and the preamp. The interconnect has an Adjustable Impedance System which is controlled by a sliding switch set to the following positions:
Low 5-50 KOhms
Mid 40-100 KOhms
High 90 KOhms and up
These positions can help you optimize the best setting between the two components. The IC switch is to be set to the input impedance of the component being connected to. In this case your preamp. A quick check on google of Audio Research archives listed the input impedance of the Ref.2 MkII preamp as 132 KOhms balanced or 66 KOhms SE (RCA).
So if using Balanced interconnects you would probably select the High position. If using RCA interconnects then Mid would probably be selected according to this MIT matching system.
Not sure about the Ultra Wide, Wide and EX designations. This might pertain only to the speaker cables. I do know that before the Adjustable Impedance System I had bought some MIT MI-330 Shotgun IC's and had to specify Low, Med or High when ordering.