What is a "reference" system?

This thread caught my eye was because of an experience I had talking to a salesman on the phone about ordering an audiophile fuse to upgrade my system. I told him about my system and asked about the difference between one fuse and another that was more expensive. He told me that the more expensive one was for a “reference system.” I just let it go but it bothers me to this day…..what exactly is a “reference system? “ So, if the system you have is not a reference system, then what is.? I think most of you are answering that question, so thanks and may each of us enjoy our reference systems.  

Funny:

I prefer young bourbon and also young wine that has seen little if any "wood".

If you shop @ TJ's look for a couple of inexpensive "screw top" wines that have either a pig or a zebra on the label.

One is a Grenache blend and I forget what the other/cheaper one  is.

Both are quite good when left open in a glass for hours and/or given a quick jolt in a blender.

DeKay

It is the system you "refer" to when comparing it to others.

I still use a boombox in the garage. I have my desktop plugged into an old receiver and some small Yamaha 2 way speakers in the office.  I. have another system in the basement.  None of these I would call Reference.  My main setup is much higher quality and as such would be my reference when listening to any other systems.

It would seem to me that a reference system would be a system that was used, or similar to that used, in the mixdown of the track of the specific recording being played at the time.

For example, there can be no denying that LS3/5As are "reference" speakers regardless of size or price.