The instrumentation amplifier system is used for the configuration of the entire signal path from the input terminal to achieve fully balanced transmission, and the power amplifier section is equipped with a further evolved MCS+ circuit and current feedback amplifier circuit.specificationRated output: 400W/ch (1?) for stereo, 800W/ch (2?) for monauralEffective output: 150W×2 (4?)Total harmonic distortion: 0.05% (2?) for stereoFrequency response: 20-20,000Hz +0,-0.2dBGain: 28.0dBInput impedance: 40 k? (balanced), 20 k? (unbalanced)S/N: 120dB Power consumption: 335W (8? load rated output)Size: 465W×180H×425D mmWeight: 24kg 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. This product is for Japanese specifications (AC100V 50/60HZ).If you are in 120V-240V region, please use a down transformer.We also sell down transformers (made in Japan), so please feel free to contact us if you would like to receive a transformer at a lower price than usual only if you purchase the applicable product. 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.