Specifications?Impedance: 8??Minimum resonance frequency: 27Hz?Reproduction frequency band: fo~2.5kHz?Output sound pressure level: 92.5dB/W (1m)?Input: 150W (Mus.)?mo?100.8g?Qo: 0.45?Effective vibration radius (a): 16.85cm?Magnet mass: 2,290g?Total mass: 10.0kg?Baffle opening dimension: ?357mm?Standard enclosure method: Bass reflex type?Standard enclosure internal volume: 180??Recommended crossover frequency: 1.5kHz or less ?Due to its weight, it will be shipped in two pieces. It works properly and is ready to use.Please check the product condition and accessories in the pictures.Please note that this is an aged product and there are small scratches and other signs of use.The accessories are all shown in the picture.Please note that this item is also sold in stores in Japan, so it may be sold out. We accept PayPal, Visa, MasterCard, American Express and Discover. I send a product by FedEx International Priority.Since it has a tracking number, please bid with confidence.Shipping is available from Monday to Friday.We do not ship on Saturdays, Sundays, or Japanese holidays as the courier is closed on those days.Shipping to PO BOX is not accepted. Import duties, taxes and charges are not included in the item price or shipping charges.These charges are the buyer’s responsibility.Please check with your country’s customs office to determine what these additional costs will be prior to bidding/buying.These charges are normally collected by the delivering freight (shipping) company or when you pick the item up -do not confuse them for additional shipping charges.We do not mark merchandise values below value or mark items as “gifts” -US and International government regulations prohibit such behavior. Thank you for visiting our store!We have been selling online in Japan for over 15 years, so there is no need to worry about transactions. We will send high quality products all over the world.If you have a product you want to find in Japan, please feel free to contact us.We also have various other items for sale.Please take a look at the list of items for sale.Thank you.