Do you have any opinion on the sound of them when you have used them. I like something subtle and bassy.
As Darthbaggins stated, it will be board dependent for sure. Polycarbonate cases have a deeper, bassier sound than aluminum. For plates, brass is typically the highest pitch and pc or carbon fiber being lower pitch. Then your keycaps matter, too. For the deepest, bassiest, thocciest sound, you'd want to go with a profile like SA. GMK keycaps is what most consider to be the ultra premium keycap but the doubleshot ABS of GMK is significantly higher pitched than my doubleshot PBT sets.
Just to make sure I'm on the same page, you intended to post black ink linear vs silent linear roselio, right? To me the analogy would be comparing a Tesla vs a Ferrari. Both are awesome vehicles with awesome performance but are on opposite spectrums when it comes to their 'exhaust' note. My biggest problem with the black inks is the heavier spring. I prefer a lighter switch so I would personally opt for Yellow Inks if I was going for the sound or Roselios if I was going for quiet. My Sakurios, after lubing, are super quiet so if you're looking for that bassy note, best stick with the inks.