Simplex Digital Flex 50W AMP 3NACS 70V 4100-1327 What you see in the photos is exactly what you will receive. NOTE: This was new and sealed in its anti-static bag. I opened it to take photos and to identify the item We are wholesaler/liquidators. We bought this in a lot of new items to resell. Our knowledge of this item is very limited. We are counting upon you to know what you are buying and if this item will suit your needs. This is being sold AS-IS. No returns. Please only purchase this if you agree to those terms. The Flex amplifiers provide audio signals to system speaker circuits. The Flex Amplifier is offered in two versions, the Flex-35 and the Flex-50. Functionally, both amplifiers behave identically but the Flex-50 is capable of supplying an additional 15W of power over the 35W version. The maximum available output from the Flex-50 and Flex-35 is 50W and 35W, respectively. The load may be configured in any way so long as the maximum power output limit is not exceeded. Both amplifiers provide dual-channel capability with internal backup functionality. SHELF: WH BL/DA