En fait de grands rubans ne descendent pas plus bas que des petits mais permettent des niveaux d'écoute plus élevés.
The ribbon obtains good bass extension since it has a lot of excursion and a very low resonance frequency due to the stiffness (or lack thereof) of the driver. The problem with a ribbon playing this low is that it will encounter compression above a certain amplitude depending on frequency. This means that while the SR1A can play good bass while right next to your ears (since SPL drops over distance) it physically cannot excurse enough to reach the same SPL at a longer distance (but for higher frequencies it still has enough excursion for this not to be an issue). Another issue with this type of driver is that the magnetic field linearity is not as good when the driver has to excurse a lot, and so it distorts. A larger ribbon would more likely lead to a higher max SPL/lower distortion rather than any significant increase in bass extension (since the resonance frequency is already so low) and I am sure RAAL had their reasons for going with this specific kind of ribbon, whether it be the practicality of integrating a larger ribbon into the design or that the smaller ribbons have beneficial properties. That would be a good question for Aleksandar I suppose.
En fait Amedeo m'a précisé que le 8 il va m'expliquer son idée concernant les RAAL (intéressant chalange pour lui) et qui est autre que le Superampli qui n'est pas prévu pour ce casqueCe boitier étudié exactement par le concepteur et pour la signature sonore structurelle du SR1a ne pourra pas être remplacé, et surtout pas par un ampli qui se voudrait 'Universel"
Pierre