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Extremely Rare and Looks Crappy Yahamha Amplifier on the Bay!

M

megasat16

Well-Known Member
Extremely rare Yahama MX-1000 Amplifier, he says!

Yeah, right! Rare your Arse! Rare for one reason is that the pictures show extremely green face plate. And for another, the caps are bulged (needs replacement), and the amps have nicks, scratches (dirts and not to mention the plastics film backing on the binding posts are started to peel off). :no:

And he says "This is an audiophile amp and deserves a unique price because of its rareness and desirability"!

Oh right! The unique price! It's extremely rare to see anyone trying to sell that kind of yamaha MX-10000 for 2K. A good rare laughter indeed! :yes: :smoke: The good going rate is under $1000 for prestine condition MX-1000!


http://cgi.ebay.com/Extremely-Rare-...emQQptZLH_DefaultDomain_0?hash=item518f94b2b7
 
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All true, but it's a "Buy It Now" or "Make Offer" listing.

It's very common for sellers to do a little trolling with a very high BIN, just in case they find a buyer who hasn't done his homework.
 
I think the green is just a reflection from his green underlayment in those photos. Notwithstanding, the amp does seem to have some cosmetic problems that I certainly would not pay $2K for.
 
Got me questioning how is best offer different from an auction? How does it work differently and are the fees different?
 
In a regular auction, if there is no reserve, the seller must sell to the highest bidder, even if it's much less than he was hoping to get.

In a "Best Offer", the seller is not obligated to sell if the best offer is too low.

There are different fee structures for everything.:yes:
 
It's more like haggling at a swap meet. The seller puts up a ridiculous price, and you counter with an offer, which he is free to accept or decline. I bought a tuner on ebay with a best offer of about half the asking price.



cubby01 said:
Got me questioning how is best offer different from an auction? How does it work differently and are the fees different?
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Fisherdude said:
All true, but it's a "Buy It Now" or "Make Offer" listing.

It's very common for sellers to do a little trolling with a very high BIN, just in case they find a buyer who hasn't done his homework.
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I do this , I set a high BIN number with a Make an Offer option , I request a reasonable offer in my first sentence again in my description so I can check the buyers feed back and the feed back they give others etc .. before I decide to do business . This amp however looks like it's been in a cement mixer nonetheless:tears:

concrete-cement-mixer-pour.jpg
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I am willing to bet

1. This amp is a paperweight or soon will be one from the looks of the bulging caps.
2. He got it from a pawn or recycler for under 100 greenbacks or a rare find from a dump. I am guessing that he meant rare find for him.
3. Yamaha MX-1000 and MX-1000U are not extremely rare to pop up on the bay or agon. They are nice amps but not hard to find under a grand for really good ones.


:D
 
merrylander said:
The bulging on the caps is just the plastic covering and is quite common.
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Well, please look at the caps again. They are not the plastic covering. They are the end of the filter caps swelling / bulging. Is it quite common? Yes, for the amps that old with caps bulging are quite common. Coincidentally, it's quite common they needs replacement soon. :scratch2:
 
Those caps look to be bulging to my eyes.

I don't trust caps (especially larger ones) that start to bulge.

This would be a great amp to buy if the price were right.

If I were really interested in a amp like this one, then replacing the PS caps/signal caps would be my first order of business. But the price would have to reflect my performing the necessary updating in a amp this old. So my bidding would be according to what I think it would cost to update the caps and subtract that from what a already updated amp would cost.

Regards, Ron
 
The caps are not bulging as merrylander said. There is a thin piece of plastic over the end of the cap and it's not uncommon for them to warp. I have seen a couple of Yamaha amps (M-80s and M-40s) with caps that look similar and it's just the plastic that has warped.

That said, about 1/4th that price is getting closer to reality if it was really clean.
 
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whoaru99 said:
The caps are not bulging as merrylander said. There is a thin piece of plastic over the end of the cap and it's not uncommon for them to warp. I have seen a couple of Yamaha amps (M-80s and M-40s) with caps that look similar and it's just the plastic that has warped.

That said, about 1/4th that price is getting closer to reality if it was really clean.
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Well, it's hard to say that the film is the only thing that warp up like that. You need to push it and see if it goes back in place. If there is gas trapped underneath that plastic film, the film will sprung back to be like that. I think it's how the Beer Cans bulge and the electrolyte solutions inside are drying up.

It's not uncommon problems with hot amps but the plastic films shouldn't be wrapped during the normal caps life (like 1000-2000 hours @ 85 degree C, etc.)

But my gripe is that the seller needs to be at least honest about it if he is trying to bait and trap a poor soul.
 
megasat16 said:
Well, please look at the caps again. They are not the plastic covering. They are the end of the filter caps swelling / bulging. Is it quite common? Yes, for the amps that old with caps bulging are quite common. Coincidentally, it's quite common they needs replacement soon. :scratch2:
Click to expand...


There is also a piece of thin plastic covering the end of the cap else you would see bare aluminium. I have had more than a few pieces of Yamaha gear pass through here and as I said, this bulge is quite common. Press on the plastic and it will go down.

What I really don't get is why everyone gets their knickers in a twist over auctions such as this. No it is not worth what the seller is asking so I would not buy it. I would also not bother posting about it either.

And if you can explain to me how a hermetically sealed cap can dry out I would be happy to hear how this miracle occurs.
 
merrylander said:
What I really don't get is why everyone gets their knickers in a twist over auctions such as this. No it is not worth what the seller is asking so I would not buy it. I would also not bother posting about it either.
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Entertainment?

My only gripe is the use of the term 'Rare'. 'Rare' has to be one of the most over used terms in online descriptions. Followed closely by 'it worked last time I used it 20+ years ago'.
 
merrylander said:
There is also a piece of thin plastic covering the end of the cap else you would see bare aluminium. I have had more than a few pieces of Yamaha gear pass through here and as I said, this bulge is quite common. Press on the plastic and it will go down.

What I really don't get is why everyone gets their knickers in a twist over auctions such as this. No it is not worth what the seller is asking so I would not buy it. I would also not bother posting about it either.

And if you can explain to me how a hermetically sealed cap can dry out I would be happy to hear how this miracle occurs.
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Heat is the main killer of filter caps but the shelf life and over voltage ac line conditions also contribute to why the electrolytes are drying out. It's called drying out since electrolytes solution is not in the same liquidity state or acidity strength they should be in normally. It's not like the whole electrolytes solutions inside are completely drained out from the can. It's also called drying out coz some of the di-electrics (usually paper) materials don't have enough electrolytes solutions soaked on them. So, where do the electrolytes gone to? Well, some electrolytes changed into Vapor and escaped through the can somehow and Heat is the main reason.

So, the internal pressure increase makes the caps bulge like that. But without physically testing the cap (see post #17) and measure with LCR meter, it's no definite way to tell if it's bulging and just film warping. Whatever it is, it may be OK for awhile longer but who know what will happen to them tomorrow if they are dying slowly?

I posted this thread to let people aware of what EXTREMELY RARE means! It's posted in dollar and sense section so AKer won't get screwed by that two words. I know we all like Extremely Rare stuff but this Yamaha Amp doesn't belong to that category. It may be a bit rare since MX-1000 are discontinued long ago and you can't go out and buy one right away. But they regularly pop up on eBay and Agon so Extremely Rare doesn't fit to it. The seller just put these two words to lure in unsuspected eBayers to make more $.
 
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