The amplifier is very good, it has everything from connections, optical fiber analog RCA input, USB stick and memory card slot on the front, it also has headphone and microphone inputs, it has a nice style with blue light that illuminates the menu, it also has Dab+ digital radio ready, it also catches FM with RDS station information, it also has Bluetooth with its own antenna at the back for better reception, it also has an input for a turntable. Now, the volume it produces is unbelievable, starting from -75 and going up to +70, even though it is in the category of a power amplifier, it still has bass and treble adjustment, so it is more towards the category of an integrated amplifier, I would say. The remote control is a bit fake, the volume buttons require a little force to work, the sound it produces is very beautiful and detailed, it supports speakers from 4ohm to 16ohm and up to 4 speakers, you can't turn it up all the way, not even halfway, the volume it produces is unbelievable. The package includes the amplifier, its remote control, alkaline batteries of the same brand, which is very important that they provide alkaline batteries and not regular ones, it has an antenna cable for the radio, company cards, the packaging is very well done and everything is wrapped nicely, the company pays attention to detail in everything from the packaging to the device. I believe it is worth its money, it is a bit expensive but it is worth it because it is a power amplifier and a bit more integrated due to the bass and treble adjustment, I don't think it needs a pre-amplifier, and most importantly, no matter how much you increase the volume, it does not distort in the speakers, even if they are small, it is worth buying