◆ Accessories Main body ◆ State We are checking the sound output of each input / output. Volume, BASS cross, balance control, GAIN, PHONO impedance switching feels a little bit. * Regarding sound quality, we do not measure accurate numerical values with measuring instruments. Since it is a used item, it will need to be adjusted if it is used in a severe setting. Please be aware of this before purchasing. In addition, there are aging deterioration such as scratches, dirt, and oxidation in various places.