The ports in the WP's mid tweeter (the WATT part) section are removable aluminum collars. One is tuned for a high power ss amp, the other is for tube amps with a lower damping factor. The result is, you can tailor the sound somewhat to the type of amp you use.
The whole process takes about 1 minute for each speaker. Just several hex screws to remove. Wilson supplies all the tools and ports when you aquire the speakers. Nothing to buy.
The whole process takes about 1 minute for each speaker. Just several hex screws to remove. Wilson supplies all the tools and ports when you aquire the speakers. Nothing to buy.