crystal sound

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  1. Hello everybody, we´re using 10pcs of IT4000 here in Germany (230V/50Hz). All of them (and also all other IT-Amps we know from other rental companys) are producing a high level of fan noise. At first it´s a constant noise like a hum, after a few minutes it starts howling. Absoluty anusable for small locations or vocals reinforcement. No we tried (just for fun) at 110V Transformer and it´s that quiet you´re expect it from an amplifier like that. I don´t think that this phenomen is acceptable for an amplifier ist this range (of quality and price). Do you have a solution for us? Except the permanent use of dozens of 110 transformers Greets Alex Crystal Sound