I can't find any info in the datasheet on the Db output from a Colorsource Spot JR.
Is the fan rotation speed depending on heat in the spot?
What is the max. dB output @ 1m?
Can you set the fan-speed on the colorsource Spot Jr on a whisper mode?
I have the full size CS units in my venue. since the full size units don't have a fan setting / DMX Channel, I'll bet that the Jrs don't either.
the fans are usage driven. turn the light to full and after a minute or so, the fan kicks in. Not sure if they are variable speed or not.
I can't give you a dB value, but i only notice them because I'm looking for the noise. over dialogue, I don't think the audience would notice. Definitely not over flute or violin solo (my venue).