Sunnyboy -
You need to read the WHOLE quote from the review rather than be selective and YOU can figure it out- "it does not accept the common industry-wide 15 amp power line plugs, but only 20 amp plugs. This, in turn, may call for installing a new plug, or obtaining a suitable cable directly from the manufacturer. For our test we used a "Sunwire" which was sent along with the amplifier.
Note - it's Sunwire, not Sunfire, and it's a cord, not a chord.