YAMAHA DSP AV Amplifier [DSP-AX457] ※ This price is valid until March 18th (Tuesday), when shipping costs will be reduced. No instruction manual included. I have confirmed that the display, button operations, and volume adjustment knob function normally. Regarding the audio, I confirmed normal operation when I used it several years ago, but I cannot confirm the output at the time of listing due to the lack of compatible equipment. Therefore, please consider it as junk. Discounts are not possible. Please refer to the attached images for product details and condition. This is a used item. Please only purchase if you understand this. [Shipping Contents] ・DSP-AX457 main unit ・Dedicated remote control (batteries not included) ※ May be slightly unresponsive #YAMAHA #DSP series #Yamaha #AV amplifier