https://www.audiosciencereview.com/forum/index.php?tags/dbx-387/
dbx | Audio Science Review (ASR) Forum
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https://leonardauction.com/auction/216-music-memorabilia-online/lot-42-dbx-audio/
Lot 42 - DBX Audio Equipment - Leonard Auction
DBX Audio Equipment (2) items including a model #224 Recording Technology Series serial #U2244980 and a model #3BX-DS Digital Series serial #60701770 with...
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https://dbxpro.com/en-US/products/1074
1074 | dbx Professional Audio | English (US)
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