There is no operation problem, but it is currently sold because it is cheap. This is one of Sony's few multi-channel power amplifiers. 5ch compatible Using the same high sound quality power transistors for each of the front, rear, and center amplifiers, you can enjoy powerful sound with a total 775W output of 155 W on each channel (8 ohms). Of course, it can operate on 2ch/3ch/4ch in addition to 5ch. Furthermore, BTL connections are also supported by connecting 2 blocks of amplifier circuits. There are stains and stains on the exterior (Wang Zhan)
Maintenance information: 2025.4.30 Operation confirmed (sound can be made on all 5 channels. (Ext2ch is also OK to make a sound)
Accessories: copy of instruction manual
Main specifications: frequency characteristics 20Hz to 20kHz front 155W+155W (4/8Ω) front (BTL) 240W+240W (8Ω) center 155W (4/8Ω) rear 155W+155W (4/8Ω) W430 x H173.5 x D453mm 24kg