I am thinking about this thread. And the only clear path is not to sell the speakers. Otherwise, listen to some B&W, Sonus Faber or Focal speakers. Audition before you buy. I think that the last thing you want is a neutral speaker.
@soix Here comes the EQ police! @fenderu2 better lock his doors and pull down the curtains.
But seriously, there's no right or wrong. I notice that treble is emphasized on some entry-level amplifiers so pulling down the treble with tone controls may help. I'm so beyond objectivity here, do as you please. Dialing knobs is partially fun.
But a passionate speaker designer prefers to tune the sound in the acoustic domain. Changing the baffle size can increase the 2kHz frequency for example. This is relevant if the driver has a 2kHz dip (some Fostex drivers do). Correcting that 2kHz dip with EQ or crossover components may result in a more 'digital' sound.