Home Forums Product Discussion & Questions BeoLab Penta 3s foam or rubber? midrange Reply To: Penta 3s foam or rubber? midrange

#51130
Glitch
BRONZE Member

    Compare the T/S parameters of a driver restored with foam to one restored with rubber (both played in to losen up the stiff new surrounds)

    How close was the driver with the new foam to the original? All of the Penta midrange surrounds that I’ve dealt with were already too far gone to make meaningful measurements.

    For anyone doing a surround replacement: Running T/S parameters, even if it is a crude DIY version, is helpful to verify your work. In this scenario, you are looking for any outliers (which can be caused by a variety of reasons). It is also helpful for sorting drivers if you are trying to make your speakers as balanced (left to right) as possible.

    Glitch