Factory-configured for 8 Ω speakers ; however, it can be adjusted to 6 Ω to accommodate 4 Ω front speakers. Setup & Connection Guide
Connect via an RCA cable to the "Subwoofer Out" jack. Set the subwoofer's volume to the halfway mark and power it off during initial connection. Video & External Devices:
100 Watts per channel across 6 surround channels.
Connect the included AM loop and indoor FM antennas while the unit is unplugged to avoid interference. Troubleshooting & Maintenance HTR-5750/HTR-5740 - Yamaha