Project Phono box has developed a loud hum,output to my headphone amp. Connecting the input to a turntable makes no difference. Earth tag on the phono box to the earth on the amp makes no difference
Hi Kelvin Munson, so you comment you can have several reasons that can generate that problem The power supply, that does not deliver the correct voltage or that is not well filtered The audio cable that comes from the tray could have the ground connection cut Bad tray ground connection Incorrect position of the MM-MC key Try and comment Regards Franco Dosil
Hola Kelvin Munson, por lo que comentas puedes tener varios motivos que pueden generar ese problema La fuente de alimentacion, que no entregue la tension correcta o que ne este bien filtrada El cable de audio que viene de la bandeja, podria tener la conexion de masa cortada Mala conexion de tierra de bandeja Incorrecta posicion de la llave MM-MC Prueba y comenta Saludos Franco Dosil
Answers & Comments
Hi Kelvin Munson, so you comment you can have several reasons that can generate that problem
The power supply, that does not deliver the correct voltage or that is not well filtered
The audio cable that comes from the tray could have the ground connection cut
Bad tray ground connection
Incorrect position of the MM-MC key
Try and comment
Regards Franco Dosil
Hola Kelvin Munson, por lo que comentas puedes tener varios motivos que pueden generar ese problema
La fuente de alimentacion, que no entregue la tension correcta o que ne este bien filtrada
El cable de audio que viene de la bandeja, podria tener la conexion de masa cortada
Mala conexion de tierra de bandeja
Incorrecta posicion de la llave MM-MC
Prueba y comenta
Saludos Franco Dosil
https://www.project-audio.com/en/product/phono-box/