An instrumentation amp is used to create a balanced amp for the entire power amp, including the signal input stage.Fully balanced transmission of the signal path from the input terminal to the power amplifier stage. The power amplifier section uses a unique Multiple Circuit Summing-up + circuit.Equipped with a current feedback amplifier circuit that feeds back the output signal as current.A non-contact MOS FET switch is used for protection.The power supply uses a high-efficiency toroidal transformer with thicker windings and parallel windings to increase capacity.Two 47,000?F type aluminum electrolytic capacitors are installed.Equipped with a mode selector switch for easy bi-amp and bridge connection.Rated output: 90W+90W (8?), 180W+180W (4?)Load impedance: 2~16? (in stereo)Damping Factor: 500 (in stereo)Input: RCA 1 system, XLR 1 systemSpeaker output: 2 systemsSize (width): 465 mm (height): 190 mm (depth): 427 mmWeight 28.9kg 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.

Please Note Condition: rankC used Scratches in various parts Accessories: power cable shipping from Japan. Please check the photos and let me know if you have any questions. (Dont worry when buying on ebay and PAYPAL, buyers are protected by buyer protection.) Policy PaymentPaypal or other credit cards, etc. Please make a payment within 3 days after you purchased. We ship the item to your ebay address.Shipping************************************************************ FEDEX Express with tracking number (Or other carrier) (Expendited Shipping) It takes 4-7 business days ************************************************************ WORLDWIDE FREE SHIPPING **ATTENTION** Usually ships within 5 days after payment. However, the handling time is set to 10 days because it may be delayed depending on the situation.Returns?Return and Exchange policy ? All returned item must be unused, unopened and undamaged in the same brand new condition as it was delivered to you. If the item does not under the brand new condition, we will not be able to make a full refund. After checking the item and estimating its condition, we will decide the percentage of the refund (80%, 50%, etc).All packaging, manuals, warranty cards, box and accessories must be sent back with the item. The item must be sent back via EMS(USPS) or any carrier that provides tracking number. In the case the item is returned due to postal problem or your absence, and you hope to cancel it even though ebay requests/cases limitation is expired,unfortunately we cannot refund ebay fees as well as shipping costs we paid. About Warranty Warranty period is complied with manufacuture regulation.When repairing, unless manufacture in your country can deal with it, you might have to send the item to Japan. We handle authentic product only, however our transaction is via auction site(ebay).Therefore we cannot make a definite promise that manufacture branches of your country can accept repair. We would appreciate your understanding. We do our best to resolve your problem. International Buyers - Please Note: Import Duties and Charged We ship the item from Japan. Import duties, taxes, and charges are not included in the item price or shipping charges. These charges are the buyers responsibility. Please check with your countrys customs office to determine what these additional costs will be prior to bidding or buying. These charges are normally collected by the shipping company or when you pick the item up - do not confuse them for additional shipping charges. In the case you refuse to pay import taxes and item is returned, we cannot refund shipping charges and ebay fees we paid.