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

tomiiv30

Showing 50 responses by tomiiv30

@kalali

I did buy from reputable authorized McIntosh dealer and the dealer replaced the first unit with a second brand new unit which has a louder buzzing and it is coming from the same left side of the amp. I am suspecting that somehow McIntosh has built defective transformers since these two amps were bought within one month period, but this is only a guess.
@stereo5 

I just got an email from the salesman I bought it from and told me that he would talk to service dept. to see if they can check or have checked the one I returned. I would also be bringing this one to them as well and have them plug it in while I am there no matter how busy they are.

And thank for posting in the other forum for me, I really appreciate that. I just don't want to spend another cent on trying to fix something that may not be fixable by me.
@stereo5

I returned the first unit to them and they had all this time to check it and tell me what the deal is, but so far I have heard nothing.I can return this one for a full refund that would not be a problem but I am trying to resolve this issue, and my question is why am i hearing the buzzing only from the left side and not the right, if I have a DC in my AC Line wouldn’t it both side be buzzing?
@erik_squires 

But what makes one transformer to buzz but another not. Wouldn't you think that when you spend this kind of money for an amp to be quite even if there is a little DC offset in the AC line, plus there was another guy that said there is no such thing as DC in AC line, so which advice should I go for.
Even my electrician was confused as to what I was trying to fix, and when I told him how much money I paid for the amp he was laughing his arse off.
He was trying to make me happy and do whatever I asked him to do even though he did not wanna do anything because everything looked fine to begin with.

@jea48 

I am in the USA
 
I will talk to the electrician when he comes back from vacation to find out what exactly he did, I may say things that are misunderstood since I am no electrician by any means, but for what I know is that I have an isolated 20 amp outlet that has it's own grounding and that's pretty much all I know and I know that there is a copper poll in the ground by the outside electrical wiring. I can tell you more once I talk to him.
@jea48 

With my amp only one is buzzing, the left one, so lets say I do have dc on my ac line why would only one buzz? IMHO I think that the one that buzz is a bad one comparing to the right one which is a good one. It would be the only explanation.
So what I did was, I turned off every switch in the house except the on the amp is plugged in and yes the buzzing sound got quieter but was still present. But having an expensive amp that has much better transformer than a cheap amp this little interference when all breakers are on should do nothing to it. 
I bet you that every house has the same problem when you have multiple things running in a house such as ac units, furnaces, washers and dryers etc, you can't tell me that there is going to be no interference at all, but this expensive amps should take care of that problem. - I could be wrong.
@jea48 

  From the MC8207 owner manual

Power Supply Circuits

To compliment the design of the MC8207, there is a high current power supply for the five power amplifier channels. Refer to figure 21. The very large Power Transfomer, has toroidal windings on a toroidal core and can supply over 35 amps of continuous current. Refer to figure 22 (golf ball is for size comparsion). It is enclosed in the legendary McIntosh Potted Enclosures and weighs over 12kg. The super size main filter capacitors can store over 340 Joules of energy for the seven amplifier channels, necessary for the wide dynamic range that “Digital Audio” demands. The power amplifier draws high current from the AC power line. Therefore, it is important that they plug directly into the wall outlet.
See page 15
http://stereobarn.com/wp-content/uploads/mcintosh-mc8207-amplifier-owners-manual.pdf

Where’s the second transformer? Am I missing something?

The very large Power Transfomer, has toroidal windings on a toroidal core and can supply over 35 amps of continuous current.
120V X 35 amps = 4200VA. Just a guess the transformer is rated at 5Kva.

In the manual it says "To compliment the design of the MC8207, there is a high current power supply for the five power amplifier channels". And this is a 7 channel amp so what about the other 2 channels. And why is there two boxes, what's in them if there is only one transformer. I am trying to understand what is what.
Link to the video I uploaded on youtube where you can clearly hear the MC8207 buzzing loud.

Also I have measured for DC offset in my AC line the the result was 0.9mV, which is not enough to cause the transformer to buzz

https://www.youtube.com/watch?v=ucbBaD2eIgg
@erik_squires I tried every possible combination and nothing worked. The only thing left to do is wait for my DC blocker which a member of another forum shipped it to me and it is the Emotiva CMX-2 to come in and see if that will help and even if it does I would still be not satisfied with this amp, it should hum/buzz at all.
I did buy it from a big cash flow dealer but that doesn't meant they would want to refund it, we will see how it all plays out next Tuesday. Also I am not trying to return everything I am just trying to get an amp that works that's all, but dealer and McIntosh are saying that it's me with the problem and not them which makes it more difficult for me to return it for a refund or another exchange.
And this is what I get from the dealer:

"Ron from McIntosh says he might hear of this buzzing issue 5 times a year. It is an amp that is 14,000 watts so it is sensitive to DC being present in the lines. He said it has to either be the electrical coming from the pole or something within your house that is introducing DC in the AC of the lines ie. Faulty/poorly designed dimmer switch or something similar. So it is certainly not the amp or us, it is something going on at his specific home. It could be something as little as 1 volt of DC that can cause this issue." 

Does this look like the McIntosh is siding with the dealer and not me, is it my f'ing problem that I spend over $20K on Mac product to be told that I am in the wrong.
@jea48 When I called Chuck at McIntosh and told him my problem he said and these were his words" Get a multi meter and stick probes one into the neutral the other into the phase and measure for DC mV, and that's what I did. I am not going to do anything more than what they suggested. 

I would try the other methods too but I feel like I have done everything they told me to do or was told to do, and I don't feel comfortable to spend any more time and money on this matter. I have other equipment in the house that does not buzz, hum or make any sounds out of the ordinary. I think that their amp is poorly design and that they should be the ones making sure this amps are not buzzing by maybe installing their own DC blocker/killer or whatever you want to call it in their amps so none of us consumers would have to deal with this what I am dealing right now. Not many have my patients.

Also I have turned off all the breakers except the one for the whole house and the one for the outlet where the amp is plugged into, the buzz was still there and you could still hear it 6-8 feet.


After some serious thinking I will just return this unit for a full refund, I shouldn’t be the one obligated to do all those things since everything else works perfect in my house I know that I don’t have problem with my power and it has been checked so many times, I don’t have to invest anymore time and money in any kind of aftermarket equipment to silence the buzz, I would try with the DC blocker like the Emotiva CMX-2 that was shipped to me by a forum member but that’s that, it will just mask the problem and nothing else. Yes taking it to the dealer and having no buzz there means that they use all kinds of power conditioners and dc blockers and what not would not prove anything to me, this unit does not work at my place and at my friend’s, I have taken this unit to two others and still buzzed.
If McIntosh does not want to invest in a proper circuitry that will fix this problem that they are having and they do have this problem for a long time I can see that since there were many people on forums saying the same thing that I am saying and we as consumers should not be held accountable for it.
There are some threads that I red about the MC462 being dead on arrival which is another thing that tells me that quality check is lacking, since I am also having issues with loose parts on mine.
McIntosh you better get your sh$t together otherwise you would start losing some serious sales or maybe you already have.

@jea48 

I wish there was a video or some kind of a drawing of how to make this simple low-pass filter device  but yet too complicated for me and some others.
I am a graphics designer by trade and not an electrician but I am willing to give a go to make one I am no afraid but only if I see it how it is made. I do have a soldering Iron and solder plus those alligator clips so I am half way there.
I went to fry's electronics and the only item they were out of all the milion items they sell were the 100K 1 watt resistor and the capacitor. How unlucky I am that I drove like about 45 each way to get to the store. 
@stereo5 

These are the things I was afraid of, going through all the hoops and troubles, time, costs for what, to fix a problem that could be easily fixed IMHO by the manufacturer.
@jea48 

Thanks for the detailed explanation I very much appreciated it. All the suggestions from all the other members of this forum are very welcome and like I said I will try to do whatever it takes to find the problem and fix it, it may take some time but I will do it. I will make sure I take notes and maybe record if he is ok with it and will snap few photos.

But for now I think I need to relax and listen to some music because my head is gonna explode, I have to enjoy my stereo system little bit.

Will be back with some more info when I get some.
Here is the update and it’s a surprising one:

Went to the dealer today with the MC8207 and right away I was taken upstairs to their tech department where they plugged this amp and the result was a dead quite none buzzing transformer and I mean dead quite not even a small buzz. Now I don’t know if their outlets have been treated since this is the tech department and not any other place in the store, it was the only place that we tested it. I was very surprised and happy at the same time knowing that this amp can be quite so I guess it leads me back to my house or the outside power.

I am in a search of somebody that really knows how to measure DC offset in the AC lines, I did what McIntosh told me to do and it returned 0.9mV which is nothing to make the transformer buzz but it could've been a wrong measurement.

As for the LED Lights that were not illuminating equal Left Side to Center to Right, there was a slight shift of an inside part that the tech had to open the front and fix it to make it all Illuminate the same, bear in mind this is a brand new amp and it needed to be open to be fixed.

I have already spoken to my electrician who is coming back to the house to do an extensive checking and we would be unplugging everything from the outlets and I mean everything, and will be turning off all the breakers off except the one for the amp and see if we can finally find the problem and if that doesn’t help than it would be the right time to call the electric company to do their part, because otherwise it would be very hard to convince them to come out just because I have a buzz.

I am a person that do not give up and would like to find a solution to fix this problem no matter what it takes as long as it is fixable.

And if anyone from here ever had to deal with their electric company would you be kind to share the steps taken to convince them to come out.
@twoleftears 

It could be the electricity coming to the house form the outside, I've done everything I was told to do and more and nothing helped. The only thing left to do is convincing the electricity company to come out and maybe put a power analyzer on the entrance meter and record if there are any anomalies. 

The store has been pretty good with me as far as exchanges and getting new units to me but even I told them that I do not want them to get me new units but find a solution to the problem I am having,  it just that they should've know more about the product they are selling or they should have been trained from McIntosh of how to address this kind of problems. 
@stereo5 

I would be all in to have something made by the Audio Gurus if price is right and if product performs better than the Emotiva 
Here is everything that went wrong from day one:

Purchased demo unit MC452 and came to me broken, right side was running way hotter than left side, had to return it and got refund back.

Purchased brand new MC8207, MC462: First MC8207 had a buzz and was replaced with a second that had even louder buzz to where you can hear it the other room.
MC462 had loose parts from the get go and it was replace by a second unit that had all parts intact but very bad quality check, the chassis itself has very bed edge to where you can cut yourself, but since I can't take it anymore I just decided to keep the second unit and live with it.

As you can see lately their quality check sucks big time. It's not just one thing but there is plenty other things happening.

The only thing that came perfect was the Marantz AV8805 that I purchased brand new as well when I bought the MC8207


It is one rod that he installed in the ground that is few feet away from the outside meter/box, the other rod was installed form the electrical company, it was already there, that's why I thought he did 2.

One of the 20 amp outlet is grounded to the inside of the panel.

The other 20 amp outlet is grounded directly from the outlet to the outside rod with a clamp that is attached to the rod itself, I saw that with my own eyes. It is a straight wire that goes from the outlet to the outside and has nothing to do with the inside panel or anything else in the house.

Both these outlets are on it's own there are not shared with any other outlets in the house.

He did measure few different things he would not let me tell him anything he just said everything measures fine. I know I saw him measuring on the panel where he got 240 volts and said one is 120 and the other is 120 something in those lines. He measured the outlets too, I don't know what he was doing but after he was done he said that to him everything looks good and he said good like convincing the electrical company to come out.

That's all I have. And I am not planning to spend any more time nor money to call other electricians or whatnot.
Would you guys be surprised if I told you nothing happen out of this situation. I get to keep this amp the way it is, it’s been over their return policy period and nobody cares to even take a look or find a solution to a problem that not just me but others are having and it is very common within McIntosh amps.
I can tell you that nobody gives a flying f$%k about the consumer anymore, they just want your money and that’s that. Once you pay you are alone and that’s how I feel.
The salesman could do just so much, he is there just like a middleman without having any authority over anything except to sell and make management happy. Even he admit it that this place sucks balls so what would you expect from place like that.
Learnt from my own mistakes but I ain’t getting screwed again after this kind of treatment that I got from Manufacturer and Dealer.

$30K in the hole and not one phone call to me. I was better treated when I bought a $200 item and was make sure I was happy with my purchase.
Yeah he came to the house checked everything again and he said not to call him any more, he thinks that I am bulls^&#g with him, and that's why I did not write anything about it. I feel like I have been let down, like I said this were the worse $30K spent in my life. 

Talking to the electrical company is like talking to my 5 year old. I just don't have the nerves and time anymore and would just live with it, I got so tired of this whole situation that I gave up.
@cleeds

What is the difference between the ground wire that is connected to the panel itself and the one that goes to the outside, it still goes thru the panel but it is not attached to the panel itself it just goes thru the pipe that goes outside where the meter is and from there it is attached to the rod.
I am by no means an electrician and I am trying the understand as much as possible how everything should work.
The guy that came to my house and did this has been in business for over 30 years and I trust them thinking they know what they do.
You guys are scaring me big time now, this is Chicago and we got some of the most f’ed up people here that say they are something to later find out that they are nothing. These are guys that have been recommended to me by friends and family. What the heck is this world coming to. And I paid them top dollar and never asked for any discounts or anything, whatever they asked I paid.
The last guy that I used the one that has more than 30 years experience, he showed me his license and works for the union and is a foreman.(It could be a big lie).
Maybe he is older and stubborn and don’t want to upgrade himself to the newer standards or he is in for the quick money.
Just like a mechanic if he tells me to replace the engine I would do it because I trust his word and this is how it should be.

The question now is how do I find an electrician that I can trust?
@stereo5 

I still have the amp, a member of another forum sent me his two Emotiva CMX2 DC blockers and told me to put them in series and after doing so there is still buzz in the amp but quieter than without the dc blockers. 
Couldn't return it because I was over my returning period. The sales man could do so much, management would not even bother look into my matter, McIntosh is nowhere to be found.

It was an expensive learning experience for me and was a first one for me. 
I am outside of Chicago limits about 20 miles west. I just turned off the breaker for that outlet and would not use it until I find somebody that really knows what he does and to double check if everything is correct or not. 



 
@twoleftears 

Do they really buy their transformers from somebody else and are not wound in-house?
Trying to fix the problem for this amplifier's buzz it made a mess of my house electrical. I shouldn't have done anything but just enjoy my new equipment, now we went totally different direction about fixing something that was not broken in the first place.
When I hire someone to do work I expect them to do all the necessary things, if they needed a permit they should've got one, and like I said everything was working just fine before I started adding outlets, even now everything works just fine and maybe everything is correct but I just don't know that what I am saying is correct, maybe I am wording myself wrong.
This problem cost me so much time and money and nerves that is giving me nightmares at night.
@twoleftears 

If that's the case McIntosh should pick up my bill and make it right for all the troubles I went thru.
The salesman from the dealer I bought my amp from told me that they had specialty electrical companies come to the building every so often to make sure everything works properly, and said that they have the best in business when it comes to electrical wiring, installation, construction and whatnot, it is a specialty hifi store and I bet their electrical is top notch.
This amp buzzed at three different houses all about 20+ miles apart, and I am still not sold on that it's only me and my electrical. But it is what it is and I have to live with it.
@jea48 

https://www.homedepot.com/p/Leviton-20-Amp-Industrial-Grade-Heavy-Duty-Isolated-Ground-Duplex-Outlet...

This is what I have for the outlet, now from that orange outlet 3 wires are cumming out and going down to the panel that's in my basement thru the the metal pipes which I think are called "conduit". 
Wires are Black, White and Green. All 3 wires are in the panel, black is connected to the breaker, white is screwed to the panel it self on the right side and the green one goes outside to the copper rod. 
Now I talked to another electrician just now and he said to me that the way green wire is done it is probably not up do code but he said that even they it is should not be a problem. He said he can come to the house and have the green wire installed inside on the panel but before he does that he said he will install some kind of a self isolated part on the panel and that green wire would attach to it. Than he said from that part he will install conduit to the water meter where he will have a grounding wire from that part to the water meter. ( That's how I understood him)
@jea48

Man, that was an eye opening video. Now let me tell you something, I was told to do the copper rod by many of this or other forums to do what I have done and think that is the right way and that it should work.

After watching the video it explained very well how everything should be done and I don’t think lot of electricians know this let alone audiophiles that thin they know but they know nothing. He also mentioned us the audio guys are doing extra rods to get isolated grounding.

@stereo5 

Yeah but that doesn't mean that they don't use somebody else to do the transformers for the less expensive amps like mine.
There is another one or two threads on Audiokarma with the same problem as mine.
I mean this lady is getting old and is the only one at the factory as far as I know and how much more can she do - right?
No need to name names for the dealer, they have done so much actually they have done as much as they knew because they have not been trained by McIntosh to deal with this kind of situations. They did not know about this problem until I brought it up to them, and even them can’t get any clear answers back from McIntosh as to how this should be dealt with. All McIntosh did was to tell me and my dealer that I have DC on my mains and how they know if I have Dc offset I have no idea they never came to my house to check, and that was that no more interactions. It looks like I am on my own.
They replaced two units so far one being the one discussed in this thread and another one that had loose parts.

If you did not read my previous posts, this unit that buzzes like crazy at my house and at two different houses, did not buzz at the dealer at all and it was dead quite - How is that possible I have no idea and I think that even if I return this unit back to the manufacturer they would say the same thing that this unit works properly.
Also the warranty time that it would take to send and receive the unit back it would be about a year or maybe 6 moths the least.


So I took the amp to 2 of my friends houses and I meant 3 total including my house. Why this unit has no been returned is that when I took it to the dealer it was dead quite, so if I was to send it back to McIntosh I would get the same answer back as the dealers, that the unit is not defective and by all means this unit is not defective it plays music and movies very well except that the buzz is so loud you can hear it in the other room. I am not complaining about a defective unit, I am complaining that McIntosh should've invented something to put in this kind of amplifiers so when we get them we don't hear this buzz.

And as far as naming the dealer, even if I told you who sold it to me, what difference would that make. They are just a dealer and a re-seller of a high end equipment. I think IMHO that it is up to the manufacturer to make sure this units work properly everywhere in every single household no matter what electricity, since we all cannot have perfect electricity right?

I mean this dealer just started selling McIntosh like not even a year ago and they did try to resolve this problem by getting me a second new unit that did the same thing, the thing is maybe the units are working as they should it just that they have this buzz that many of us get, that's all. Some are bothered by it (like me), some aren't.
And IMO when spending this kind of money we should not deal with this kind of problems.
And they do (Mc) read the forums and it sucks that not one of them made a contact with me to find a solution to the known problem. They were very quick to throw the ball at me saying that I have electricity problem (to which they never came to the house to test for it) and that I should deal with it, and that was the last thing I heard from them. And all they did was to tell me that I need a DC blocker to which I replied "Where do I buy one" and their reply "Search The Internet". Not even a direction to where I can buy one but they know that I need one. To my eyes they are all bunch clowns.
@cleeds

Let me get this straight with you, if this amp worked at the dealer place in their tech department and it was dead quite, what case do I have against them or the manufacturer at that point?
So even if I shipped it to MC for warranty repair the same thing would happen at their place to and would say repair is not needed because amp is working properly and there is no buzz.
I demanded that the dealer send somebody to my house or have the dealer contact MC to send somebody out to at least hear this amp’s buzz at my house because in their eyes it looked like I was bullS with them. I still have the amp and it still has that loud buzz and if any of them want to come out to my place to check it out they are more than welcome. So far nobody has reached out to me to make a visit to hear their product not working as it should.
Let's see if they are going to do that
@cleeds 

But no one from the dealer or the manufacturer cared to find a solution to my problem that many others are having too, so it is not just me. 
What good the warranty gonna do for me, except drain more money out of my pocket for shipping both ways to come to find out to be told that amp is working properly and they would not do anything else.

And if somebody is deleting posts from my thread than it is the moderators and not me, and if that's the case than you know they have been paid off by MC to do so.

@cleeds 

What are you talking about, what have I deleted from this thread, everything that I have posted is still here and I have not disappeared I am still here but have nothing else to add to it, I am keeping the amp as is and I will never ever buy another McIntosh product in my life, simple as that.
When the dealer and the manufacturer do not give a flying F about their customer, what else can a customer do except keep the amp because like I said before this amp when I took it to the dealer and once they plugged it in their outlet it was dead quite, why is it buzzing at my house and at my friend's I have no idea, all I was told is that I have or we have bad electricity that's all, I am no planning to repeat myself again everything is noted in this thread if you want to find out more please read the whole thing.
I have made up my mind about this brand not just this amplifier. To answer to @cleeds I have done only one outlet that does not meet NEC standards which was un-installed completely and is no longer in existence and everything else is back to normal, but the amp is still buzzing. The amp buzz has nothing to do with what I have done with the electrical it just cost me money that’s all, money can be made but the experience I’ve had so far with this brand alone is unforgettable and was unpleasant. After spending so much money and not even one phone call was made back to me that should tell you something.
The amp just sits in the corner collecting dust and if you wanna buy it it’s yours for $5K
@cleeds 

It still isn't clear why you don't simply return the amp to McIntosh for evaluation and (hopefully) repair

Because it would cost me more money to do so, I have to pay for shipping both ways which is not cheap, and I am not planning to spend a cent more because I am pretty sure nothing would get done.


@cleeds 

Why do you want to know so bad who the dealer is, I don't get it. What can the dealer do more, I took the amp to them they plugged it in and it was dead quite, what else do you expect to dealer to do. They don't have to do anything else. Now if they cared more about their customers or me as an example they should have went the extra mile to try to help with this situation but they decided that they should not do anything\ but that doesn't mean they did something wrong to me.
On the other hand the manufacturer should've jumped in and try to help me and the dealer as to why is this happening, what can be done, they should've trained the dealer more on how to deal with this kind of situations etc.
Another thing is this amp works there is nothing wrong as far as the output or whatever else, the problem is with the transformer's buzz and this is something that only the manufacturer can fix not the dealer.
I do not want to cause the dealer any harm because I feel that they have not done anything wrong to where I need to bash their name. Even though I was not happy of how they dealt with me I feel that is not enough to put their name in the open forum.
@jea48 

I have PM'ed him but never got a reply back, maybe he hasn't seen the msg yet or he is just not making them anymore.

Also there are more than 2 McIntosh dealers in or out the Chicago area but again I am not going to name the dealer it is not needed since they have not done me crazy wrong.  I did not buy from those two you mentioned I can tell that much.

@stereo5 

The way they have acted so far I don't know if I can keep my anger inside me without expressing my self out loud. I know they frequent this forum and other forums and if they wanted to help they would've done by now but none of them have replied to this thread or any other that I have made. I can sense they have their own fanboys that want to throw the ball at me like if it was my fault or something. 

@jetter 

nothing is hooked up to the amp, only the power cord that is plugged into the outlet, no speakers, no premps or av receivers.
@almarg

Of course I am being truthful, If I was not McIntosh and the dealer would’ve been on my ass from the get go. They know who I am, I have spoke on the phone with Chuck twice and my dealer spoke to Ron on the phone few times but I was never given a clear answer as to why is this happening and if they are planning to do something to fix this problem.

Both me and the dealer were told by these two McIntosh representatives that I need a DC blocker and that I have bad electricity of dc offset on the mains even though McIntosh never sent no one to my house to check if I really have dc offset on my mains, they are just speculating, and even if I do have dc offset aren’t they suppose to help the consumer to come up with a solution, because I am not the only one with this kind of a problem. And since McIntosh has no smart answer they chose to stay quite as you can see.
@cleeds

I don’t care where he bought his amp. That the OP won’t name the dealer just suggests that there’s more to this issue than he’s willing to acknowledge

If there was something else that I am not acknowledging McIntosh would’ve been all over me. Are you out of your mind. This is a brand new amp bought from an authorized dealer, you are something else bud.
People like you make the brand look even worse than what it is right now. Why should I send this heavy ass amp to anyone for evaluation is beyond me. Why don’t McIntosh come to my house and check out the problem, I have hiatal hernia and been diagnosed to not lift any heavy weights but I did lift this heavy amp to take it to the dealer, not once not twice but three time and spent at least hour and a half driving one way to go to the store. I still cannot understand how is it my responsibility to do all this things is beyond me.

Here is the story:

I go out to this authorized McIntosh dealer who is about an hour and a half away from, buy this brand new amp, bring it home find out there is a buzz call dealer, dealer says bring it back we will order you a new one new amp is ordered, I go to pick it up bring it home plug it in and boom louder buzz than the first one. Call dealer back, dealer says bring it back to the store for testing, I bring it to the store to the techs department plug it in and amp is dead quite and bam I got no case, dealer says see it works and there is no buzz, dealer calls McIntosh to tell them that amp is dead quite at their store and McIntosh says that there is nothing else that can be done, bam I am left alone with nobody backing me up.
Actually I am told that I need a DC BLOCKER and was told this by Ron and Chuck but they won't even tell me where to buy one which made the situation even worse. ALL I WAS TOLD BY CHUCK IS TO GO ON THE INTERNET AND SEARCH FOR ONE - IF THIS IS CUSTOMER SERVICE AT ITS FINEST THAN I DON'T KNOW WHAT IT WOULD BE IF OPPOSITE OF FINEST.

There is nothing I hide it’s all here in the open and if some of you smart asses would like to prove me wrong than go ahead come to my house check out the amp and go from there.
@cleeds

I don’t need anymore help nor do I care about this brand anymore. You think that $5-6000 would do me any harm, no. but the reputation of once good company can be ruined by cases like this. I think they have more to lose than me. I am done with them anyway and would not spend a cent more on it.
And I was at piece until you dragged me back into it, and I am really trying to understand you why do you want to know about this dealer so much, they have done their job what else can they possibly do.

And the MC8007 is not the only amp I bought I bought the MC462 and C52 and a Marantz AV8805 from the same dealer, so as you can see I spent pretty penny buying McIntosh equipment, and I was planning to buy another MC8207, a pair of Sonus Faber speakers but guess what, that ain’t happening no more. And once I sell my McIntosh equipment that is only 2 moths old since bought brand new I will move on to another brand.
Moderators: What’s going on with you deleting my posts, in what way or form have I spammed or offended someone on this forum. No wonder people like me never get help, because you let people insult me and lie about me but you would delete my posts when I defend my self.
I was accused of deleting my own posts by @cleeds which is a big fat lie because I never deleted it any of my posts.
I was accused that I am lying about my problem which is not true again and you have done nothing about it.

There is no point of me posting here anymore because with moderators like this I am not getting anywhere.

Just so you know I have copies of everything that has been posted on my thread so you can delete as much as you want.