On September 15, 2023 at 16:02, Lyndel McGee said...
I don't believe so. I think they were paired based on serial numbers or protocols. I believe that the RC9001 requires a Marantz extender.
I found the Philips Pronto RFX-9400 Wireless Extender in a second-hand store, I will buy it at an affordable price and give it a try. I will share the result here.