512 AUDIO Academy Closed-Back Wired Studio Monitor Headphones $20 at B&H Photo Video $20 $100 Ends at 9PM PT. B&H Photo Video has the 512 AUDIO Academy Closed-Back Wired Studio Monitor Headphones (Black, 512-PHP) on sale for $20 with free shipping. Includes 3.5mm to 1/4" adapter. $20 retail: $100 Report Posted by Faraday02/05/2024 at 07:48 AM PT