The Revel
Performa line of speakers is end-of-line and is discontinued. Revel has had close-out prices on this line for most of the last 2 years. The Revel msrp close-out price was $1950 each or $3900 a pair. Many dealers (and Revel) would include shipping in this price.
Dealers can no longer order these speakers from Revel, but some may have remaining stock. The price you've been quoted is ~ the close-out prices. Dealers may not have stock to 'exchange' speakers with problems.
Revel says they are working on a replacement
Performa line, which may be announced in 2025. The pricier
PerformaBe line, with the expensive Beryllium tweeters, is a current Revel line.
If you can get them, jump on them soon, before they are all gone. The F208s are a very good value at ~$4K.