jea48

Responses from jea48

Krell KAS amplifier hum
@ jg2077 There is a good chance the existing 120V 15 amp convenience outlet branch circuit safety equipment ground is causing the ground loop hum. There is a good chance there is a difference of potential, voltage, between the convenience outlet s... 
Krell KAS amplifier hum
OP,I assume you are hearing the hum from the left and right channel speakers.Hum is probably caused by a ground loop.Are you using balanced ICs or SE ICs?How are you feeding 120V power for the preamp and the connected front end equipment? Another... 
Amp tripping circuit breaker.
jetter1,477 posts    12-11-2019    8:03am   I had the same thing happen, but only with a particular high current amp. Other more modest amps would not trip the breaker. But if I plugged the high current amp in any other circuit it would not trip... 
Amp tripping circuit breaker.
magneplanman OP4 posts 12-10-2019 11:44am One thing I forgot to mention - the reason I suspected the amp is because it’s own protection was tripping earlier in the summer, often immediately when powering from a cold start. It ended up going awa... 
Amp tripping circuit breaker.
@OPBy chance is the electrical panel/ AFCI breaker in the panel a Square D type? By chance does it have a white test push button? If so it is a CAFI AFCI and you can test whether the breaker is tripping on over load or short circuit,  or,  if it i... 
Amp tripping circuit breaker.
magneplanman OP1 posts 12-10-2019 11:44am One thing I forgot to mention - the reason I suspected the amp is because it’s own protection was tripping earlier in the summer, often immediately when powering from a cold start. It ended up going away... 
Amp tripping circuit breaker.
Unknown if it matters if amp is on or not. Yes it matters. https://www.youtube.com/watch?v=ihforRdL-TU 
Why no “Break in” period?
markpop12275 posts 12-09-2019 4:51am @ markpop1227 Take it with a grain of salt.....https://www.youtube.com/watch?v=lJFnlDTtsBA FWIW       Capacitor Forming https://www.tdk-electronics.tdk.com/download/185386/6ad5ed9e1ff4f727c328cb92da2adf2b/pd... 
Romex to your amp?
@ cerberus79,Just curious why did you use IG receptacles. What type of branch circuit wiring/wiring method did you use for the two dedicated branch circuits? Example NM MC Metallic conduit/single conductors Jim 
Why no “Break in” period?
After all this nobody has given us a proven reason why a purely electronic device needs to "break in" after the manufacturer’s burn in. after the manufacturer’s burn in. "after the manufacturer’s burn in." ????For what purpose would a manufactur... 
Why no “Break in” period?
Electronics do not have a break in period. You are only accommodating to the sound of your system. Your first impression is the right one.As for Paul McGowen, he will tell you what ever it takes to sell his equipment. He is not Ralph Karsten, Nel... 
Connecting an Audioquest NRG Edison 20 amp outlet
Just a guess Audioquest supplied the spade for use on stranded wire, not solid.Crimps don’t work well on solid wire.Just curl the solid wire around the ground screw on the outlet in a clockwise direction. Close the loop if possible and then tighte... 
Power Cords - Equipment Priority?
DO NOT ever use solid core wire for component power cables since it is not recommended by many electrical codes due to fatigue failures (i.e. breaking). Probably the majority of audio grade aftermarket power cords made today use solid core wire f... 
Dedicated Power Line Project
@emailists I assume you live in the US. My post only applies if you live in the US. If you use Romex, (Romex is a Trade Name for NM sheathed cable), it is not designed or manufactured, or UL Listed, for use as you would like to do as basically a p... 
15 amps vs 20 amps
The house is not new but was fairly recently rewired. @janehamble If the rewire was done after 2009 there is a good chance the governing AHJ (Authority Having Jurisdiction) adopted the 2008 NEC section in the code requiring TR outlets in habitua...