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Electronics Repair (sci.electronics.repair) Discussion of repairing electronic equipment. Topics include requests for assistance, where to obtain servicing information and parts, techniques for diagnosis and repair, and annecdotes about success, failures and problems. |
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Average Joe need line conditioner?
As many of us know in the electrical/electronics world, all home
electronics equipment has a form of filtering associated with the a.c. line and/or the filtered d.c. down the path. Series noise filtering can be a line transformer as you would find on better equipment or an rc network as found on direct line connected equipment. I see these "line conditioners" in the stereo/tv stores selling for as much as $500.00 to $1500.00. These units clean-up noise as well as stabilize the 120 volt line voltage. As I have come to understand, the need for these units is grossly exaggerated by salesmen to unsuspecting customers, as the line noise levels are already reduced to acceptable levels in the tvs/stereos in general. -- Dave M. |
#2
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Average Joe need line conditioner?
I am inclined to agree, unless you're doing hi-fi recording, in which
case you might spend 200 bucks on a furman power conditioner if there's something especially noisy in your neighborhood. But usually if something is making noise on the power line, something isn't working right, and the power company can be talked into at least looking at it.I can't imagine what might be in the $1500 one that would make it that much better. I once saw triple shielded optical digital audio cable made by monster in a fancy stereo shop. |
#3
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Average Joe need line conditioner?
"Dave M." wrote in message ... As many of us know in the electrical/electronics world, all home electronics equipment has a form of filtering associated with the a.c. line and/or the filtered d.c. down the path. Series noise filtering can be a line transformer as you would find on better equipment or an rc network as found on direct line connected equipment. I see these "line conditioners" in the stereo/tv stores selling for as much as $500.00 to $1500.00. These units clean-up noise as well as stabilize the 120 volt line voltage. As I have come to understand, the need for these units is grossly exaggerated by salesmen to unsuspecting customers, as the line noise levels are already reduced to acceptable levels in the tvs/stereos in general. Yes they're mostly snake oil, since just about any equipment steps down the line voltage with a transformer, rectifies it and filters it interally you'd have to have a LOT of noise on the line to cause any problems, especially for better equipment with well regulated supplies. |
#4
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Average Joe need line conditioner?
wrote in message oups.com... I am inclined to agree, unless you're doing hi-fi recording, in which case you might spend 200 bucks on a furman power conditioner if there's something especially noisy in your neighborhood. But usually if something is making noise on the power line, something isn't working right, and the power company can be talked into at least looking at it.I can't imagine what might be in the $1500 one that would make it that much better. I once saw triple shielded optical digital audio cable made by monster in a fancy stereo shop. Unless you are into the very high end stuff it is a waste of money. Speaking of the monster stuff, it gets me that they (or someone like them) sell a special replacement 120 v cord that replaces the one that comes on equipment for about $ 100. What good would that do when you have about 50 feet or more going to the breaker box and alot of aluminum cable going to the power pole ? |
#5
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Average Joe need line conditioner?
"Ralph Mowery" wrote in message
ink.net... wrote in message oups.com... I am inclined to agree, unless you're doing hi-fi recording, in which case you might spend 200 bucks on a furman power conditioner if there's something especially noisy in your neighborhood. But usually if something is making noise on the power line, something isn't working right, and the power company can be talked into at least looking at it.I can't imagine what might be in the $1500 one that would make it that much better. I once saw triple shielded optical digital audio cable made by monster in a fancy stereo shop. Unless you are into the very high end stuff it is a waste of money. Speaking of the monster stuff, it gets me that they (or someone like them) sell a special replacement 120 v cord that replaces the one that comes on equipment for about $ 100. What good would that do when you have about 50 feet or more going to the breaker box and alot of aluminum cable going to the power pole ? HAW!!!!! You think a $100 power cord is bad.. get a load of the duplex receptacle at http://www.partsexpress.com/pe/pshow...number=110-439 -- Dave M MasonDG44 at comcast dot net (Just substitute the appropriate characters in the address) Never take a laxative and a sleeping pill at the same time!! |
#6
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Average Joe need line conditioner?
PCB-free snake oil, I hope.
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#7
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Average Joe need line conditioner?
"DaveM" wrote in message ...
HAW!!!!! You think a $100 power cord is bad.. get a load of the duplex receptacle at http://www.partsexpress.com/pe/pshow...number=110-439 You dont get it, do you ? Gold-plated rivets make the sound better!!! ;-) |
#8
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Average Joe need line conditioner?
"Pszemol" wrote in message
... "DaveM" wrote in message ... HAW!!!!! You think a $100 power cord is bad.. get a load of the duplex receptacle at http://www.partsexpress.com/pe/pshow...number=110-439 You dont get it, do you ? Gold-plated rivets make the sound better!!! ;-) LMAO!!! For that price, they ought to be solid gold!!!! -- Dave M MasonDG44 at comcast dot net (Just substitute the appropriate characters in the address) Never take a laxative and a sleeping pill at the same time!! |
#9
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Average Joe need line conditioner?
"Ralph Mowery" wrote in message ink.net... wrote in message oups.com... I am inclined to agree, unless you're doing hi-fi recording, in which case you might spend 200 bucks on a furman power conditioner if there's something especially noisy in your neighborhood. But usually if something is making noise on the power line, something isn't working right, and the power company can be talked into at least looking at it.I can't imagine what might be in the $1500 one that would make it that much better. I once saw triple shielded optical digital audio cable made by monster in a fancy stereo shop. Unless you are into the very high end stuff it is a waste of money. I would add that *if* you're into the very high end stuff it's all a waste of money IMO. There's good equipment, there's very good professional grade equipment, then there's audiophool grade equipment which differs from the former two mostly in price and marketing. |
#10
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Average Joe need line conditioner?
"DaveM" wrote in message ... "Ralph Mowery" wrote in message ink.net... wrote in message oups.com... I am inclined to agree, unless you're doing hi-fi recording, in which case you might spend 200 bucks on a furman power conditioner if there's something especially noisy in your neighborhood. But usually if something is making noise on the power line, something isn't working right, and the power company can be talked into at least looking at it.I can't imagine what might be in the $1500 one that would make it that much better. I once saw triple shielded optical digital audio cable made by monster in a fancy stereo shop. Unless you are into the very high end stuff it is a waste of money. Speaking of the monster stuff, it gets me that they (or someone like them) sell a special replacement 120 v cord that replaces the one that comes on equipment for about $ 100. What good would that do when you have about 50 feet or more going to the breaker box and alot of aluminum cable going to the power pole ? HAW!!!!! You think a $100 power cord is bad.. get a load of the duplex receptacle at http://www.partsexpress.com/pe/pshow...number=110-439 -- LOL I thought I'd seen it all. Where's the audio grade circuit breakers and romex cable? |
#11
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Average Joe need line conditioner?
Dave M. wrote:
As many of us know in the electrical/electronics world, all home electronics equipment has a form of filtering associated with the a.c. line and/or the filtered d.c. down the path. Series noise filtering can be a line transformer as you would find on better equipment or an rc network as found on direct line connected equipment. I see these "line conditioners" in the stereo/tv stores selling for as much as $500.00 to $1500.00. These units clean-up noise as well as stabilize the 120 volt line voltage. As I have come to understand, the need for these units is grossly exaggerated by salesmen to unsuspecting customers, as the line noise levels are already reduced to acceptable levels in the tvs/stereos in general. I can't even miagine a million dollar recording studio plugging their equipment into a $100+ outlet. It's true that the cheapest $0.79 outlets are not reliable and after several cycles of inserting and removing plugs, they loosen or break. So when I change an outlet in my house or for someone else I reccomend a more expensive outlet - about $3.00 - $4.00 each. |
#12
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Average Joe need line conditioner?
I'm surprised it's not touted as an alternative to wiring your amp
directly into the breaker. Does anyone sell oxygen-free THHN wire? |
#13
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Average Joe need line conditioner?
Jumpster Jiver wrote:
It's true that the cheapest $0.79 outlets are not reliable and after several cycles of inserting and removing plugs, they loosen or break. So when I change an outlet in my house or for someone else I reccomend a more expensive outlet - about $3.00 - $4.00 each. I get Leviton for around a buck and have never worn one out or broken one. -- If John McCain gets the 2008 Republican Presidential nomination, my vote for President will be a write-in for Jiang Zemin. |
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