Stupid question about preamp, and amps?

[Hetfield]

I think you'll probably find turning that gain down a little might just clear it up.

What I've been looking at are Monoprice's Monolith amps. 2 channels (or up to 7 channels) at 200wpc. I wouldn't mind offloading the front 3 to this one and letting my receiver handle the 2 surrounds I have. It's on my short list for additional amplification if/when I get the money for it.

Those monolith amps look awesome! I was drooling over them the other day on monoprice website. Designed by ATI and built like tanks. Audioholics loves them too. Seems monoprice has stepped up there game but time. That's a good idea about just having the receiver handle the surrounds. It would make a world of difference I think.
I'm gonna post my issue on AVS too not to see if anyone had ideas there.

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[Pogre]

I'm gonna post my issue on AVS too not to see if anyone had ideas there.

Cool. I'll hop over there so I can troll that thread too... J/K!

 

[Hetfield]

Cool. I'll hop over there so I can troll that thread too... J/K!

I guess we all bounce back and forth.

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[lovinthehd]

I didn't rant about separates being better. I did say I don't like what is going on with the amp sections of receivers right now because they need more processing power. Just my opinion, I don't like it.

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Amps don't "need" processing power, that's a pre-amp thing. Maybe avr amps aren't power amps, but they don't necessarily need to be; with a set of pre-outs it's a non-sequitur.

 

[Hetfield]

Amps don't "need" processing power, that's a pre-amp thing. Maybe avr amps aren't power amps, but they don't necessarily need to be; with a set of pre-outs it's a non-sequitur.

Yes but a receiver does both. Receivers are taking away from the amp sections because they need more power for processing. That's all I was saying.

 

[lovinthehd]

Yes but a receiver does both. Receivers are taking away from the amp sections because they need more power for processing. That's all I was saying.

It's a matter of the tool for the job; avrs don't need to be overbuilt with amp sections to satisfy those looking for more in that end of the deal; pre-outs work very well in that respect. Audible differences otherwise, meh...most don't even max out avr capabilites.

 

[Hetfield]

It's a matter of the tool for the job; avrs don't need to be overbuilt with amp sections to satisfy those looking for more in that end of the deal; pre-outs work very well in that respect. Audible differences otherwise, meh...most don't even max out avr capabilites.

I agree. People can do and buy what they want. That's what makes the world go round.

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[lovinthehd]

I agree. People can do and buy what they want. That's what makes the world go round.

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Do you really know what you need, though? How did you get there? That's what I'd be thinking about....

 

[Hetfield]

Do you really know what you need, though? How did you get there? That's what I'd be thinking about....

Yeah i want the best system I can buy in my price range. I'm looking for clean, and dynamic sound. Sound that makes you take a attention. I love my system, just need to fix this hum and I'll be good to go.

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[Pogre]

Yeah i want the best system I can buy in my price range. I'm looking for clean, and dynamic sound. Sound that makes you take a attention. I love my system, just need to fix this hum and I'll be good to go.

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Did you try turning the gain(s) down yet? That's a very quick, easy way to tell. You don't even need to have anything playing. It would literally take about 1 second. Well, maybe 15 or 20 seconds if you have to power everything on...

 

[Irvrobinson]

Well this guy is completely giving up on receivers of any range, high and low. I just don't like what is going on with receivers. I'm going back up separates and I'm not looking back.

I'm with you. AVRs are just full of compromises and I like a pre-pro and an amp for my HT system. I use an Outlaw 975, which has a few design issues, but not enough to get me to get rid of it. (Not enough gain for some sources, for example.) Hopefully Outlaw will do better on the 980. Don't assume Outlaw or Emotiva are flawless; I sold an Emotiva CD player because it drove me crazy. Low-prices electronics are often not as "finished" as premium products, especially in complicated pre-pros.

 

[Hetfield]

The buzz fluctuates with the volume up or down. Does that tell you anything, is that a clue of what the issue is?

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[Pogre]

The buzz fluctuates with the volume up or down. Does that tell you anything, is that a clue of what the issue is?

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If you turn it down to where you don't hear the buzz, are you still hitting the spl you want? I know little about ground loop interference, but it happens. Did you check any of the links HD posted explaining it?

 

[Hetfield]

If you turn it down to where you don't hear the buzz, are you still hitting the spl you want? I know little about ground loop interference, but it happens. Did you check any of the links HD posted explaining it?

Yeah I read those who a bunch of other stuff I found. Some a bit over my head, but some things I'm gonna try after work.

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[Pogre]

Yeah I read those who a bunch of other stuff I found. Some a bit over my head, but some things I'm gonna try after work.

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How far do you have to turn the gain down for the hum to be inaudible?

 

[Hetfield]

How far do you have to turn the gain down for the hum to be inaudible?

Not turning the gain down on the amp. Turning the volume down on the receiver affects the severity of the buzz. I'm trying everything in the world to not turn down the gains of the channels on the amp. It's not something I want to do.

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[Pogre]

Not turning the gain down on the amp. Turning the volume down on the receiver affects the severity of the buzz. I'm trying everything in the world to not turn down the gains of the channels on the amp. It's not something I want to do.

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Why? I don't get it. It's so easy and simple to do. You're asking advice and rejecting this one, so simple test. What little experience I have with amps, I've always been told to not have the gains set at more than half.

If turning the gains down solves the problem then what is the issue? You seem to be being unreasonably stubborn about this. If you don't like it, you turn it back up. I can think of no reasonable, rational, logical explanation to not try this. Are you going to be one of those guys who asks for advice and doesn't listen to any of it?

IMO you're making this more difficult than is necessary.

 

[PENG]

Not turning the gain down on the amp. Turning the volume down on the receiver affects the severity of the buzz. I'm trying everything in the world to not turn down the gains of the channels on the amp. It's not something I want to do.

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He is only asking you to try that as part of the troubleshooting procedure. If the noise is negligible at your normal listening level, keep your cable runs short and leave it alone.

 

[Hetfield]

Why? I don't get it. It's so easy and simple to do. You're asking advice and rejecting this one, so simple test. What little experience I have with amps, I've always been told to not have the gains set at more than half.

If turning the gains down solves the problem then what is the issue? You seem to be being unreasonably stubborn about this. If you don't like it, you turn it back up. I can think of no reasonable, rational, logical explanation to not try this. Are you going to be one of those guys who asks for advice and doesn't listen to any of it?

IMO you're making this more difficult than is necessary.

Here is my thinking on the gain thing. I just upgraded from a 95 watt per channel receiver to a very high performance 140 watts per channel amp and now I'm gonna cut it down by turning the gains down? That just to me doesn't seem right. Don't forget it's not one gain knob, it's 5 for each channel so I'd have to kinda get them all the same.
Just for you though because I like you, tonight I'll put all 5 knobs at 50%, half up and see what I find. I'm also thinking about trying one of those hum eliminators but I want to check a few things out before I go that route. Do you see where I'm coming from now with not wanting to cut down the gains?

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[Pogre]

Here is my thinking on the gain thing. I just upgraded from a 95 watt per channel receiver to a very high performance 140 watts per channel amp and now I'm gonna cut it down by turning the gains down? That just to me doesn't seem right. Don't forget it's not one gain knob, it's 5 for each channel so I'd have to kinda get them all the same.
Just for you though because I like you, tonight I'll put all 5 knobs at 50%, half up and see what I find. I'm also thinking about trying one of those hum eliminators but I want to check a few things out before I go that route. Do you see where I'm coming from now with not wanting to cut down the gains?

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I do and I don't. I'm getting put of my comfort zone here, but if I understand it correctly you'll still be getting more power from the amp than your avr, you'll just have to turn the volume up more on the avr when listening. Plus it's only a troubleshooting step that could clear things up for you very easily. We're just asking you to try it. You can always put it back, right?

That's the part I don't understand. I could understand it if it involved tearing your system apart or could cause harm in some way. Adjusting the gains is so easy to do. If it doesn't solve your problem, no harm, no foul, and you'll be one step closer in the troubleshooting process. If anyone else asks you if you tried it, you can say yes and move on to other steps.

Everything I've read about ground loop interference says it can be any number of things and difficult to troubleshoot. If adjusting the gains works, you're one of the lucky ones to have found a simple solution.