Yamaha has been one of the leaders in supporting Custom Installers for several years. They were one of the first to have full discrete codesets starting with the X95 series and Discrete power in the X92 series. RS-232 control has been around since the RXV1(2000) and the Products currently being replaced by the 1500 and 2500 already have RS-232 control...........

Randy........... What are you talking about?

RS-232 is a Control Protocal

Serial is a Type of Connection

The RS-232 Control Protocal uses a Serial Connection. Most of the time its on a DB-9, but it can be a Stereo Minijack, Molex connections or any number of Pin to Pin connections, but NOT USB. There are USB to DB-9 Serial adaptors, but just because USB has "Serial" in its name doesnt mean its a replacement for RS-232,Or DB-9 fr that matter. THe next evolution in control (Which is growing rapidly) is TCP/IP Ethernet based. I do a LOT of advanced control systems... I'm a Certified AMX Designer and Programmer, Certified Crestron as well and I've never seen a device (Consumer or pro) COntrolled Via the USB Port.......