Is it possible the MIT cable might simply using some form of adjustable attenuation? John Kenny includes ones which cost about �10 with his JKDAC on request. They're not adjustable, but did make a difference when I demmed the DAC a while back before going Meridian. Made the sound more natural and laid back. Meridian is already a very balanced sound so I haven't bothered to fiddle with them in my system.

HC: 861v4/ID40/LPS, DSP5000, DSP5000VC, DSP3100, SW1600, HD621, Oppo BDP-105, Sony VPL-HW55ES
2-Channel: Oppo BDP-105, TEAC VRDS-7/Trichord Clock 3/PSU, 551, Quad 303, Harbeth Compact 7ES-3, Kimber cables, Russ Andrews mains and supports.
Previous Meridian: 5000C, 5200SL, 7200.2, 6000, 562V.2, 568.2mm, 800v4, 808.2i, 818v2/v3, 861v8, 502