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FosPower RCA Y-Adapter (6 Feet), 1 RCA Male to 2 RCA Male Y Splitter Digital Stereo Audio Cable for Subwoofer, Home Theater, Hi-Fi - Dual Shielded | 24K Gold Plated - Walmart.com
Amazon.com: Mediabridge™ Ultra Series RCA Y-Adapter (12 Inches) - 1-Female to 2-Male for Digital Audio or Subwoofer - (Part# CYA-2M1F-P) : Electronics
2 RCA to 1 RCA Male Subwoofer Audio Splitter Y Cable Stereo Bass Bi-Direction – ASA College: Florida
Amazon.com: SKW RCA Y Splitter Cable 1 Male to 2 Male Subwoofer Cord, BG Series Ultra-high Purity Copper RCA Y Cable with OD 6.0mm, Multiple Shield Stereo Audio Cable for Subwoofer, Home