I'm sorry it does or does not come one while playing lower.? I'm just thinking if your recording at lower volumes ya know.With my wt800 I'm driving 2, 4 ohm acme's, and we play kinda loud sometimes. When we end a song the fan is noticeable in the room but I can never hear it when playing. If I play low enough that the fan noise would be an issue the amp doesn't get hot enough for the fan to come on.