Hi there,is it possible to replace some resistor from the Watt's acess panel in order to get more treble ? can it be done by myself? any information of the specification? Thank you.
Have you checked with Wilson? Would it be easier (and more amenible to customization) to add an equalizer somewhere? It is possible that Wilson's crossover components are encased in epoxy, i.e., "potted," which would make them difficult to modify. You might be able to check this by looking at the crossovers in your W/P 6.1s.

The W/P 7s are less bright than your W/P 6.1s, in part I believe because the company had to switch tweeter suppliers. This has been described as an improvement, but its desirability is subjective.
Wilson has not switched tweeter suppliers. They use Focal tweeters. They switched woofer suppliers.
What about speaker placement? It's VERY critical for Wilsons...did a dealer do the setup? If not, this maybe be your core issue...
Tony007 - Thank you. I stand corrected: It appears the W/P 7 does indeed still use a Focal tweeter. My memory slipped a cog, and I thought there was a tweeter switch between the 6s and the 7s. It had not in fact happened yet. Here's some relevant discussion I dredged up:

A little off topic, but I am wonder whether you could tell me the color of the WilsonGloss on your Watt's? Thanks
My W/P 6s are Diamond Black (glossy black).
Yes their are 3 replaceable resisters in your Watt under the bottom access panel of the Watt. But I can't image you wanting more treble.. You might have cooked one of the resisters and that's why your tweeter is cut... These are part of the design to prevent you from damaging the tweeters.

Contact you wilson dealer to get another resister pack, you can discuss with wilson what components and whether to change values.
can these replacable resistors at the bottom panel go off spec badly?

any try tweaking w/ a diff brand than caddock?

If you see solder coming from the resister then they have been over driven and the quality is being compromised. If you want to tune the sound, wilson can send you different values based on the sound you are trying to achieve.

Never tried any other brand. Only replaced them on my WP 7 while troubleshooting what turned out to be an amplifier problem and not a resister problem. On the used Maxx 2's I replaced the resisters because the owner preferred even more highs (he was older and my guess going tone deaf in those registers), they were way too tipped up and I reverted to the stock resisters and values which immediately corrected the performance. A couple resisters had solder creeping out of the resister as a result of being overdriven..