Sail,
In chosing an amp, i found limiting choices to those with certain damping factir, power, current, and input impdedance spec ranges helped to find a good match to my speakers and tube pre-amp faster.
Phono rigs in particular are also usually best assembled based on various specs for matching cart to tonearm.
Also of course feature specs are important to find the right options in addition to delivering good sound.
In chosing an amp, i found limiting choices to those with certain damping factir, power, current, and input impdedance spec ranges helped to find a good match to my speakers and tube pre-amp faster.
Phono rigs in particular are also usually best assembled based on various specs for matching cart to tonearm.
Also of course feature specs are important to find the right options in addition to delivering good sound.