Manufacturer Sega Availability Sega Astro City Amplifier Complete, untested, used in Naomi games as well (we think) $40.00 Qty: Add to cart Email a friend Question about product? Add to wishlist Details Original Sega amplifier board used in its Astro City games (and possibly Sega Naomi games). This board is untested, appears to be complete and in good condition, but we have no way of testing it. Image is a sample image as sometimes we have more than one in stock. Actual item is in comparable condition.