・This is the ONKYO A-977, a full-size integrated amplifier. It is an upgraded model of the A-973. ・Released in 2007, the original price was 126,000 yen. The basic model, the A-973, was priced at 52,500 yen, so this model was more than double the price. ・It weighs 17.6 kilograms. ・I used this as my main equipment at home. I am selling it because I am replacing my equipment. ・It has a variety of inputs. I used it to connect a CD deck, MD deck, radio tuner, cassette deck, record player, and Bluetooth receiver to this single unit. ・Before listing, I checked the internal and external cleaning, input from each input, sound output from speakers A and B, direct playback, and sound adjustment using tone control. ・I also confirmed its use as a power amplifier using MAIN IN. I have also confirmed that the Phono equalizer works without any problems by connecting a record player to the Phono terminal. ・This unit does not have a subwoofer output, but pressing the Loudness button provides a similar effect to a subwoofer. The bass is tighter and doesn't sound as boomy as when using a subwoofer. Of course, I have confirmed this as well. ・This unit will go into protection mode if the speakers are not properly connected beforehand, and as a result, the volume will blink and no sound will be produced. I have also experienced issues with loose banana plugs being deemed as NG. ・Accessories include the RC-627S remote control. I will also include custom non-plated cables. ・Although the remote control is not the standard model, the button layout is the same as the standard remote control (RC-636S), and it can be used in exactly the same way. ・The cables are the work of someone in Toyama who customized power cables (they seem to be taking a break now). ・The inlet and plug are non-plated, and I couldn't tell the difference even when comparing them to cables that cost tens of thousands of yen each. ・There are some scratches. Please refer to the images at the back. ・Please prepare batteries for the remote control. Also, the power cable is 3P, so please prepare a conversion connector if you are using a 2P outlet. I am also listing this on other sites, so please comment before purchasing.