Available is a brand new and original Yamaha tweeter fitted as standard on the Yamaha NS-333, NS-C444, NS-555, NS-777 speakers.  Yamaha recently discontinued the original tweeters and replaced these with the YK849A00, which is a direct replacement for discontinued X4228C00.  Please see last two pictures showing the discontinued X4228C00.

If you have one of these speakers and it sounds a bit less bright than it used to, chances are that your tweeter might have gone faulty.  An easy test is to listen to it at a close range and high frequencies should be clearly audible.

Please note that the images of the speakers are purely included for illustration purposes of the applicable range, and that these speakers do not form part of the listing.

Free fitment offered in collected in person, or Instructions could be provided to assist with changing the tweeter yourself with minimal tools being required.

See our other Yamaha items here:  https://www.ebay.com.au/sch/i.html?i&_ssn=pano_solutions