The Crusoe is 1.4W when playing MP3s. The SA, in the high-power app we use it in, is <0.45W flat out, and at 190Mhz is <0.2W flat out - for MP3 playing, make that 0.15W and 0.09W-ish.

The MP3 bands are a bit limited for using for visuals, we just do a FFT. The visuals rarely take more than 2% of CPU time, including FFT and drawing the visual 38 times a second.

Hugo