DALL·E-2023-10-21-19.56.00-illustration-of-a-PA-speaker-with-visible-wiring-showcasing-an-effective-and-safe-parallel-connection-surrounded-by-safety-icons-like-a-shield-and-c 2023.10.21 2 views Post Share Hatena Pocket RSS feedly Pin it Post Share Hatena Pocket RSS feedly Pin it