marantz PM84 is a constant-voltage power amplifier, and the maximum power output of 8 Euros is 65 W/4 Euros and 95W! That is to say, it can bring up to 8 Euros, and if it brings up to 4 Euros, it can bring up to 23 Euros. What you said is that only 6 Euros is the best match! Therefore, the constant-voltage amplifier is generally only suitable for playing light music, or meetings, etc. Because its high-pitched sound is relatively distinct and the bass is relatively scarce, it is still suitable for restaurants. The only thing that you can't meet is the sound quality. To put it bluntly, it is very difficult for a constant-voltage speaker to pay attention to the sound quality. It is very difficult!