Important Notice for International Customers. We have tried to describe the product condition as much as possible, so please check carefully before purchasing. The product condition will be clearly stated in the item description section. Both speakers produce sound. Connection method: 1 = positive 2 = negative A small noise occurs when adjusting the rear attenuators. Please note: – The midrange/tweeter area shows repair marks and tape repairs. The woofers also show signs of age and repair around the dust cap area. Due to age, restoration or further maintenance may be required. Crossover condition has not been confirmed in detail. Please review all photos carefully before purchasing. Accessories Main Unit Condition For Parts.