Hi,
I'm looking to upgrade the tweeter and crossover on my 4X speakers. The pots are heavily damage as well. I'm hoping some of you have some recommendations on the following:
Using the HiVi Q1R tweeter as done in the AR-2AX
How should the crossover be updated?
What pots should I use?
Thanks,
Harley
Welcome Harley
The Hi-Vi tweeters you linked are great replacements for those in the AR-3a but won't work well in the 4x. The tweeter crossover in the 4x is at 2,000 Hz IIRC. The Hi-Vi's frequency response is 2,500 - 20,000.
Your best bet is to use original AR-4x tweeters. Some people (myself included) have reported some success using phenolic ring tweeters like these https://www.parts-express.com/grs-prt-8-phenolic-ring-tweeter-replacement-for-ar-4x-cts-marantz-and-more-8-ohm--270-252