I used to own a lot of classic Audioquest cables. The version number 1, 2, 3 etc are different in number of wires inside The higher the #, the more material it uses. In some cases, it may also introduce the use of silver.
Note that sometimes a lower version # of a model may not contain silver, but the higher one of the same model may. So don't assume a higher model always contain silver.
The classic AQ cables are more balanced and full sounding, but the jacket/insulation material does not age well like others have mentioned. The more recent AQ lines are more multi-channel centric. Much better jacket/connectors, but there is considerable gap in price vs performance factor. There are numerous better alternatives at the asking price.
IMHO I like the classic AQ better.
Hope this helps.
Note that sometimes a lower version # of a model may not contain silver, but the higher one of the same model may. So don't assume a higher model always contain silver.
The classic AQ cables are more balanced and full sounding, but the jacket/insulation material does not age well like others have mentioned. The more recent AQ lines are more multi-channel centric. Much better jacket/connectors, but there is considerable gap in price vs performance factor. There are numerous better alternatives at the asking price.
IMHO I like the classic AQ better.
Hope this helps.