Connect an external REL sub and use the ground of my phono pre-amp

  • 23 June 2022
  • 2 replies

Does anyone know if it is possible to use the phono pre-amp ground input to ground an external sub when using high frequency connection? on the AMP.

2 replies

Userlevel 7
Badge +21

What is the ground on your phono preamp hooked to? Likely better to use that for the sub too.

This sounds at best unwise -- potentially injecting hum -- and at worst dangerous to the integrity of the Amp. What exactly are you trying to achieve? A high-level connection to the REL?