View Single Post
Old 02-17-2008   #25
kloneman
Super Moderator
 
kloneman's Avatar
 
Join Date: Jan 2008
Location: Fort Worth, TX
Posts: 161
Default Re: Amps for dummies

A ground-loop induced hum can come from any single ended source, and that is one of the problems with most receivers - all those single ended connections and not enough balanced inputs. In RLPIII's case I believe we got rid of most of the noise by providing a separate lower impedance path to a common grounding point on the receiver chassis for each of the power amps, than was possible though the interconnects. If I recall correctly, there was also a bit of shot (white) noise coming from the preamp output stage of the receiver too. RLPIII's Halcro was much quieter on all fronts.

Quote:
Originally Posted by kennyt View Post
rlpii,

Ground hums can happen in any system, they are not specific to receiver/amp systems. I have even had my cable be the cause of these from improper grounding as the main cable box for a multi unit building.

Just to also clarify, the idea of adding amps to a receiver is a stepping stone, more than an ends though for some it is sufficient.
__________________
- Kloneman --
kloneman is offline   Reply With Quote