This guy has a warrantee he should just return the component to the manufacturer for repair and while it is there hire a trained, competent, licensed electrician to correct the improper, faulty, and dangerous connections previously constructed by the prior contractor also he should name hear the dealer that sold him this component why hasn't he already mentioned that?
DC Offset Blocker/Killer - where to buy in the USA
I have McIntosh MC8207, the first unit I bought from an authorized dealer came with a loud buzzing coming from the left transformer, and was replaced with a new unit which came with even a louder buzzing. The buzzing can be heard from 8 feet away. Then I was told to have install new 20 amp outlet that has its own isolated grounding.
That was done professionally by an electrician who installed two isolated 20 amp outlets, two 20 amp circuit breakers, two copper polls for grounding for each outlet, each outlet has its own neutral and power line. After all this done the buzzing sound was still there.
I was then told to buy a power conditioner which I did (Audio Quest Niagara) which was like $4000 and that did not help. Called back McIntosh and was told that I might have DC offset in my AC line and was told by McIntosh that I would need a DC Offset Blocker/Killer to which when I asked them where to buy one they told me to go on the internet and search to find one, to which I cannot find one.
This bothers me a little bit, if you as a company think that I have dc in my ac and i need a dc blocker wouldn't you need to sell one as well. I brought this amp to my friends house and it was the same no improvement, so my guess is that he has dc in the ac line as well.
So If anyone of you knows where to buy a DC Offset Blocker/killer please let me know, but even if this helps kill the buzzing wouldn't you guys think that this expensive somewhat hifi amp/brand should be silent from the factory. I mean this is two units in a row all purchased brand new.
My house is 5 years old, everything is brand new, the whole neighborhood is about 8-9 years old, my electrician says that I have perfect power coming to the house and everything looks fine.
Thank You
That was done professionally by an electrician who installed two isolated 20 amp outlets, two 20 amp circuit breakers, two copper polls for grounding for each outlet, each outlet has its own neutral and power line. After all this done the buzzing sound was still there.
I was then told to buy a power conditioner which I did (Audio Quest Niagara) which was like $4000 and that did not help. Called back McIntosh and was told that I might have DC offset in my AC line and was told by McIntosh that I would need a DC Offset Blocker/Killer to which when I asked them where to buy one they told me to go on the internet and search to find one, to which I cannot find one.
This bothers me a little bit, if you as a company think that I have dc in my ac and i need a dc blocker wouldn't you need to sell one as well. I brought this amp to my friends house and it was the same no improvement, so my guess is that he has dc in the ac line as well.
So If anyone of you knows where to buy a DC Offset Blocker/killer please let me know, but even if this helps kill the buzzing wouldn't you guys think that this expensive somewhat hifi amp/brand should be silent from the factory. I mean this is two units in a row all purchased brand new.
My house is 5 years old, everything is brand new, the whole neighborhood is about 8-9 years old, my electrician says that I have perfect power coming to the house and everything looks fine.
Thank You
Showing 9 responses by clearthink
4krow "What more has to said? Defective unit, no" If the claim that it was defective was valid, authentic, and genuine then why wouldn’t this person who came hear only to complain return the unit to McIntosh for repair, adjustment, or replacement and why wouldn’t he name the dealer who sold him this defective, damaged, or inferior unit? |
tomiiv30 "And since McIntosh has no smart answer they chose to stay quite as you can see." I salute your perseverance, bravery, and valor in bringing this matter to the attention, awareness, and consiousness of this group you are to be congratulated, thanked, and applauded rather than doubted, questioned, and challenged! |
miner42"You spend many $$$$ on the equipment yet you cry about spending $ to send to a service center when you probably have a service center near you that you could deliver to." I wonder if this OP ever submitted his amplifier for a proper, qualified, thorough bench testing by a factory authorized engineer or technician to establish beyond any doubt for certain whether the amplifier is in some way broken, faulty, or defective or if the source, origination, and cause of the problem is elsewhere. I applaud the OP's courage, bravery, and persistence in pursuing this problem and can only wonder what prevented him from seeking verified, documented, testable proof and validation of the issue here. |
tomiiv30"Moderators: What’s going on with you deleting my posts, in what way or form have I spammed or offended someone on this forum" That is what is so strange, odd, and unusual about the US you claim "First Amendmant Rights" but then when someone posts something accurate, truthful, and honest they're posts are deleted because some is offended, insulted, or hurt? It is time for the members here to state, declare, and demand that Free Speech be Permitted in This Group At All Times and I again salute your perseverance, bravery, and valor in bringing this matter to the attention, awareness, and consiousness of this group you are to be congratulated, thanked, and applauded rather than doubted, questioned, and challenged! Only a brave person such as yourself dare risk the onslaught of attacks, criticism, and vile characterizations you have suffered, endured, and tolerated all in the hope, expectation, and wish that others be shielded, protected, and defended against the sort of injustice, maltreatment, and abuse heaped upon you hear by those with alternative motives, goals, and designs! |
tomiiv"f course I am being truthful, If I was not McIntosh and the dealer would've been on my ass from the get go." You are damn right they would have been on you with lawyers invoking McIntosh's rights, credibility and intellectual property they would have lubed you up and rammed it to you if what you are saying is not the whole, complete, unadulterated, truth there is no doubt, question, or uncertainty hear as to you're claims, assertions, and statements with the single, sole, solitary, exception of "cleeds" who's oozing boil festers upon this group with repeated, predictable, and assured regularity, consistency, and frequency. |
jea48"Does that mean that you will stop posting to this thread?" No he will not like an infected boil or bloody hemorroid cleeds will not go away he will continue to argue, interrupt, and "obfuscate" the legitimate, genuine, honest, discussions that occur on this board among and between dedicated, knowledgeable, forthright audiophiles seeking to share they’re experience, wisdom, and knowledge in a straightforward, valid, and reasoned approach, style, and manner. Thank you, Al! PM sent to you directly!!! |
tomiiv30 "No need to name names for the dealer" As Americans would say I am going to call bs on all of your claims there is no substance, basis, or evidence for you're claims you came hear bashing McIntosh but if you're claims were valid, authentic, and genuine then you're dealer sold you defective merchandise and is required, obligated, and bound to either facilitate, effectuate,. and accomplish a satisfactory repair, replacement or refund and you're refusal to name the dealer reflects this hidden agenda of your's. The other possibility is that you purchased a used, demo, or preowned unit which then may have been modified, damaged, or altered in such a way that the problems you claim resulted. |