tripartido
Sven, what do you mean by "de facto low end standard"?
If you're familiar with the GearSlutz forum, and the Low End section in particular, you'll have noticed that there is a certain degree of "consensus" when it comes to what gear represents the best bang for the buck.
Examples:
Colored preamp - Golden Age Projects Pre 73
Clean preamp - Focusrite ISA One
Dynamic Mic - Shure SM7b
SDC mic - Oktava MK012
Tube LDC mic - Stellar CM6
Solid State LDC mic - Audio Technica AT4047 (for vocals anyway)
Multi-pattern LDC mic - CAD M179
Ribbon mic - Cascade FatHead
...and so on.
Sven