When the SEAS T35C002 dome was released in Europe I ordered a pair to see if they would fit the TW034 waveguide because due to the rear chamber it might do the same thing as the modified Audax TW034 dome can do: Go lower and allowing the point of crossover between 8008 and dome tweeter to be taken down to around 2 kHz providing a bit more presence and better dispersion in upper mid and lower treble.