Should a reference speaker be neutral, or just great sounding?

Thank you. I wasn't going to be the one to point that out but you are right, my room is the reference. Especially now with my modded Moabs.

Neutral, no color, Not warm. 
This is  a  great speaker,,, I am about to upgrade my Thor xovers,, with new Mcaps, M resistors , This should make the Thors the best sounding speaker for its size, budget in the world. 
Look fora  YT vid comming soon,,,parts are on order. 
Madisound  will build the new outside the cab xovers. 
Seas Meets Mundorf. 
The WOW factor should be off the charts. 
The caps in there now are the old legendary Hovland Musicaps , Huge yellow 10uf's.  X4 and 8uf's X2. 
Gonna run 10uf Silver Gold ,. each retails for a  wopping $220 each,,got a  pair used off ebay for $230. Just ordered a  pair of Silvergold EVO oil 8uf, as each Millennium take's 18uf capacitors, so 1 Supreme silvergold 10uf + 1 EVO silvergold oil 8.2 uf, the resistors will be Munedorfs Ultra R-Resist Foil. , $17 each. 
YT vid comming, new wires on drivers, taking out the copper flat wire will employ navships silvercopper 20 ga. 
= could be explosive. 
I will finally find out just what potential  the Seas Excel have,, plan to send a  video to Jadis, SEAS, Madisound and Mundorf. 
Just bought a  new mic for my vlog cam. 

Everyone’s “reference” will certainly be different

There is of course some subjectivity in Reference,,
Objectivity also exists when employing world class components. 
Seas Meets Mundorf. 2 world class labs. 
No, Seas meets Mundorf Meets Jadis, 3 world class labs. 
all 3 are truly reference components, 
Not opinion, thats objective facts, read the reviews. 

For a great recording, you want a neutral speaker. Any speaker can sound good, given a recording with complementary flaws. But to have the highest percentage of good listening experiences with audiophile recordings requires a neutral speaker.

 good detail imaging ,soundstaging is essential . the tonal balance the internal voiced Xover network will dictate how nuetral or tonal balance . A lot depends how much $$ you have to spend .
i prefer to buy used save at least 50%+ 
and then rebuild ,or have someone putin top quality xover components 
many companies cheat in this area 
they just put in  Average since you can’t 
see what’s in there .i know by Many years experience,and many speakers.