I have just bought Super Chromega D5Xl with a dichroic head and have not got it installed and ready to go. I was surpised at the amount of backgound vibration f rom the large fan that cools the lamp. Is this normal - can I disconnect the fan ? I will try some printing this afternoon to see whether it is a problem but I can feel vibration on the baseboard and on the enlarger head.
Any experiences or thoughts ?