Re: More amp woes
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Joined: Feb 2009
Posts: 3,466
connoisseur
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connoisseur
Joined: Feb 2009
Posts: 3,466 |
My system is actually on 3 different circuits right now. Most everything is on one, but the left sub is on it's own, and the ButtKicker on another. No hum or ill effects at all.
It's just that if you get hum, that's one of the first things to check.
Pioneer PDP-5020FD, Marantz SR6011 Axiom M5HP, VP160HP, QS8 Sony PS4, surround backs -Chris
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Re: More amp woes
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Joined: Sep 2004
Posts: 11,458
shareholder in the making
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shareholder in the making
Joined: Sep 2004
Posts: 11,458 |
If your buttkicker gets a ground loop hum, does it just tickle a bit?
::::::: No disrespect to Axiom, but my favorite woofer is my yellow lab :::::::
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Re: More amp woes
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Joined: Feb 2009
Posts: 3,466
connoisseur
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connoisseur
Joined: Feb 2009
Posts: 3,466 |
I've actually thought about that.
Pioneer PDP-5020FD, Marantz SR6011 Axiom M5HP, VP160HP, QS8 Sony PS4, surround backs -Chris
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Re: More amp woes
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Joined: Jul 2004
Posts: 4,444 Likes: 16
connoisseur
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connoisseur
Joined: Jul 2004
Posts: 4,444 Likes: 16 |
Charles - As a test to determine if you have a ground loop, or some other grounding issue, try using a ground isolating adapter. I don't know the proper name for it, but it's an adapter than eliminates the ground wire and allows you to plug a three pronged cord into a receptacle that only uses line and neutral wires. Every one of my external amps has created a 'hum'. I've had to chase down the source, which can be quite frustrating. The adapter will at least let you know if you can eliminate one possibility.
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Re: More amp woes
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Joined: May 2002
Posts: 10,654
shareholder in the making
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shareholder in the making
Joined: May 2002
Posts: 10,654 |
Charles, I still don't have any new suggestions, but I'm puzzled by all the discussion relating to ground loops. Unless I misunderstood your first post, replacing the A1400-8 with the Onkyo receiver as the power source resulted in no hum. If so, there's no ground loop issue, but an amplifier issue, as I previously commented.
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Enjoy the music, not the equipment.
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Re: More amp woes
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Joined: Jul 2006
Posts: 12,077 Likes: 7
Founder, Axiom Upgrade Club shareholder in the making
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OP
Founder, Axiom Upgrade Club shareholder in the making
Joined: Jul 2006
Posts: 12,077 Likes: 7 |
I'll have to find one of those cheater plugs. I think my dad has one or two somewhere. Otherwise, I'll pick one up. That's what you're talking about, right? So I should just hook the amp up to the wall with one of those to see if the hum goes away?
And yes, no hum with the receiver powering the speakers. No appreciable hum, anyway. If I turn the volume way up, I can hear a tiny bit, as you'd expect. The hum on the amp is unrelated to volume level.
I'm also waiting to hear more from JC who's been talking to Andrew. I really appreciate all of the help, guys.
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Re: More amp woes
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Joined: Aug 2009
Posts: 6,015
axiomite
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axiomite
Joined: Aug 2009
Posts: 6,015 |
If you have a 65 year old house like I've got, those 3 to 2 prong plugs are laying around all over the place.
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Re: More amp woes
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Joined: Jul 2006
Posts: 12,077 Likes: 7
Founder, Axiom Upgrade Club shareholder in the making
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OP
Founder, Axiom Upgrade Club shareholder in the making
Joined: Jul 2006
Posts: 12,077 Likes: 7 |
The house is old, but the electrical was completely redone a couple of years ago, so at least there's that.
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Re: More amp woes
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Joined: Jul 2006
Posts: 12,077 Likes: 7
Founder, Axiom Upgrade Club shareholder in the making
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OP
Founder, Axiom Upgrade Club shareholder in the making
Joined: Jul 2006
Posts: 12,077 Likes: 7 |
John, my dad did have a cheater plug, and the hum remains when I use it.
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Re: More amp woes
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Joined: May 2002
Posts: 10,654
shareholder in the making
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shareholder in the making
Joined: May 2002
Posts: 10,654 |
Sure, Charles; the use of a cheater plug is meaningless when a ground loop isn't the problem, and nothing that you reported indicated that it might be.
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Enjoy the music, not the equipment.
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