Marantz AV amplifier. As expected from Marantz, it delivers high-end sound. The slim design, which fits in any rack, is also appreciated. I was able to confirm the output to all speakers except the subwoofer, and most of the functions. I was using it for about 4-5 hours a week until recently, but the protection circuit seems to have activated, and the power went off. Since then, the power turns on, but it turns off immediately. Please consider it as junk, for parts, or for repair. ◆7ch full discrete power amplifier ◆AirPlay, DLNA1.5 compatible network function ◆Marantz Remote App ◆Video conversion & 1080p upscaling ◆Dolby TrueHD, DTS-HD Master Audio support ●HDMI input/output: 6 (rear 5 + front 1) / 1 ●Effective maximum output (6Ω/1kHz/T.H.D 10%/JEITA): 80W x 7 ●Maximum external dimensions (W x H x D): 440 x 105 x 367mm ●Weight: 8.3kg Accessories are as shown in the images: remote control and power cable only. The exterior has some minor scratches and signs of use, but I don't think there are any critical issues. Please check the images for details.