Review on 🔈 OSD Audio SMP1000DSP Mono Subwoofer Amplifier with DSP Control, LED Screen - 1000W Class D by Jonathan Unruh

I like the internal power supply and the front panel controls. The automatic on and off works well. I haven't tried it as a speaker amp, only as a subwoofer. I really only have one complaint. In standby mode, the LED changes color from green (active) to red (standby). The LED is so bright it looks like a red laser pointer in space. At night the whole room is lit up. I'll end up with tape over it, but you can see in my photo when my finger completely covers the LED it still glows red. I wish there was a way to turn it off.