PRESS RELEASE Oklahoma City, OK, October 15th, 2019 — DD Audio is hitting the 2019 Midwest SPL Finals in full force. From 9am on October 26th to 4pm on the 27th the Missouri State Fairgrounds will feature car audio fans, competitors, retailers and manufacturers all lining up to witness or be part of SPL history. The DD Audio Demo Team will also be there, supporting competitors, offering product...