SVS PC13-Ultra - Important Safety Instructions; General Usage Precautions; Electrical Safety & Servicing; Power Cord Accessibility

14. Adjust the volume control as needed to recalibrate and/or level-match the
subwoofer.
15. All other menu options should be set to off/disable for connection to an A/V
receiver. Contact SVS for assistance as needed.
Please contact SVS if you encounter problems or need assistance. E-mail
custservice@svsound.com or call 877-626-5623 M-F 9AM-9PM and Sat/Sun 12PM-6PM
Eastern.