I have the following pre amp http://www.ebay.co.uk/itm/Douk-Audio...item3f54325cd2
It was rebuilt by Fire Bottle I have had a hum/hiss from the phono stage since I have had it finally getting round to sorting it .
The Pre amp has two Arcam 8p power amps acting as mono blocks after much playing about I have found with the pre amp off and the power amps on only when amp is set to phono even with the pre amp off I am getting a hum /hiis when I turn pre amp on it gets worse .
I am going to change the power supply leads tomorrow but any ideas what else I could look to do ?
Cheers Gerry