Brass screws make a real difference on Dunlavy s ?

Never known of any speaker manufacturer to adjust the torque on any of their speaker drivers when mounted into the cabinet and this includes DAL.. except one for sure. If any were indeed factory set there has never been a setting quoted in a shop manual. If there was a quoted torque then that factory setting has changed over time. The screws that hold the mounting frame to the Vifa tweeter mentioned above are metric steel and should also be replaced with brass as these are very close to the moving voice coil and dome. Tom

Merlin speakers have adjusted their driver torque setting and quoted it as one of the changes made when they launched a series update.

Great.

I'd just call keeping drivers firmly attached a good idea and leave it at that. Not worth cutting hairs about.

If you cut all those hairs its called good grooming. In this case better sound. All in the details leads to more and better detail. Tom