Rickenbacker 4003W Rick-o-sound setup and demo - YouTube
What Is Rick-O-Sound? Demystifying Rickenbacker's Unique Output Jack -...
Hosa YPP-118 Y Cable 1/4" TRS Male - Dual 1/4" TRS Female (Stereo Splitter) | Guitar Center
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Getting that vintage Rickenbacker 12 string tone — Anatomy of Guitar Tone
Amazon.com: GOSYSONG 1/4 inch Y Cable 3ft, 1/4 TRS Stereo to Dual 1/4 TS Insert Cable, 1/4 Stereo to Dual 1/4 Mono Cable, TRS 1/4 to 2 1/4 Mono Y Splitter Audio Cable : Electronics
What Is Rick-O-Sound? Demystifying Rickenbacker's Unique Output Jack -...
What is the Rickenbacker Rick-o-Sound (Ricko sound)?