If you have a balanced output from your keyboard and you use a balanced cable then you’re good. Most powered speakers have a balanced input. Due to the difference of “v” and “u” this is a 12dB difference in power which our ears hear as slightly more than a doubling or halfing of perceived volume.Ģ. This is the typical nominal output level from a professional mixer.
Most powered speakers have a nominal input of +4dBu. This is suitable for a line level input to a mixer or amp. Most all keyboards output at a nominal-10dBv level. There are two reasons for this: (technical but good for keyboard players to know)ġ. Yes, it will work, but it may not be loud enough for your purposes, or getting it loud enough by turning all the knobs to eleven may give hiss and distortion.
