JackarlTwo
100+ Head-Fier
I recently got my H5KPCU and I don't have that switch. Unfortunately I also suffer from noise. It's a 50 Hz hum and I tried different cables/ outlets with no other devices connected. There's less noise from one outlet but still audible. I also noticed that after a few hours the hum almost disappeared only to come back again. Could this be a matter of burn-in? But it seems pretty constant. The hum varies slightly from low to high volume and touching the top plate reduces the hum somewhat but not completely. So I'm thinking a ground-loop issue? I'm talking with Wieslaw to see if we can figure it out.
As far as sound goes I'm loving it! Atrium and HD650 is sounding better than ever, and this is with stock tubes and no burn-in. I was worried it'd be too warm for Atrium but I don't find that to be the case at all. The midrange is fantastic, the bass is punchy and deep, the treble is smooth yet detailed. A full bodied sound that isn't overly warm. The Burson amp sounds thin and brighter/ neutral in direct comparison with a smaller soundstage.
Now on to fix this annoying hum.
Edit: I just tried the amp in the kitchen outlet which is grounded and there's zero hum. Dead silent. The house is old and most wall outlets are ungrounded.
As far as sound goes I'm loving it! Atrium and HD650 is sounding better than ever, and this is with stock tubes and no burn-in. I was worried it'd be too warm for Atrium but I don't find that to be the case at all. The midrange is fantastic, the bass is punchy and deep, the treble is smooth yet detailed. A full bodied sound that isn't overly warm. The Burson amp sounds thin and brighter/ neutral in direct comparison with a smaller soundstage.
Now on to fix this annoying hum.
Edit: I just tried the amp in the kitchen outlet which is grounded and there's zero hum. Dead silent. The house is old and most wall outlets are ungrounded.
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