For those of you who do installs, the RPM 22, 44 or 88 might be the answer to your prayers.
We're currently working on a difficult installation in a private country club. They have three rooms and one veranda. Each room must be able to have multiple independent music sources or be ganged with any other combination of rooms. A plugged in mic in each room must also be able to be routed to any combination of the four rooms. Each room also needs its' own volume control.
The really hard part of the specifications is it must be idiot proof.
Enter the Rane RPM 88. 8 analog inputs (switchable from mic to line level) and 8 balanced analog outputs is just the start. A two-channel AES3 digital input and two-channel AES3 digital output are also provided on each, making the RPM 88 a true 10-input, 10-output device. All I/O, including the AES3 I/O, has its own, 100% user-defined signal processing path. The RPM's analog inputs feature software-controllable mic preamps with an equivalent input noise (EIN) of -128 dBu.
Each room gets a Smart Remote that mounts in a single gang Decora box and offers 31 preset combinations of routing and volume control.
Multiple sources - multiple zones - simple control . . . priceless.