The USB audio sampling rate of the Roland TR-6S Rhythm Performer is set on the computer, not on the TR-6S.
- Install the TR-6S USB driver for your OS.
On Windows 10, the driver is installed automatically when you connect the TR-6S via USB to a computer that is connected to the internet. - Connect the TR-6S to the computer via USB.
- Open the settings screen on the computer and change the sampling rate.
- Windows 10: Start > Roland > TR-6S
- macOS: Audio MIDI Setup > Audio Devices > TR-6S