A:Answer Hello Poppy,
Thank you so much for your inquiry. Unfortunately, this subwoofer doesn't support coax cable. The line input port of our SA-CS9 115W 10” Active Subwoofer uses an RCA cord. If your Yamaha HTR-5130 amplifier supports the same connection for a subwoofer, then yes, the SA-CS9 115W 10” Active Subwoofer will work perfectly. You can use the supplied RCA cord of this subwoofer to connect it to your Yamaha HTR-5130 amplifier.
Note:
Please ensure that your Yamaha receiver supports the impedance rating (6 ohms) of our SA-CS9 to avoid any issues. Matching speakers and subwoofer with lower impedance (ohms) than what the A/V receiver is rated may cause damage to the receiver.
I hope you find this information to be helpful!
- Romeo