are you serious ???
Rayma this conclusion is based on what ??? your opinion ??? sorry that doesnt count It will take a bit more than that ...
also your previous comment about time estimation etc. normally applies to technicians that don't know how to do the job
for us there is no time estimation related to the amplifier it only has to do with the position of the amplifier on the line of production
If we need details we just check our data base
In a few words when the costumer is parking his car outside we have cost and time estimation , predict the costumers occupation ( that is a private joke/bet that i play with my employees and i usually win ) and when he is gone we also have his levels of cholesterol !!!!
Rayma this conclusion is based on what ??? your opinion ??? sorry that doesnt count It will take a bit more than that ...
also your previous comment about time estimation etc. normally applies to technicians that don't know how to do the job
for us there is no time estimation related to the amplifier it only has to do with the position of the amplifier on the line of production
If we need details we just check our data base
In a few words when the costumer is parking his car outside we have cost and time estimation , predict the costumers occupation ( that is a private joke/bet that i play with my employees and i usually win ) and when he is gone we also have his levels of cholesterol !!!!
These cables use standard Neutrik connectors, anyone with some experience can install them properly on the original cables.
As an electrical engineer with over 40 years of experience, including much custom work for very particular customers, I stand by my advice.
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Thank you all folks....i have readed all posts
Thank you.
I do think i already have "ammo" to start the procedure.
Brazilians are this way....the same as Greek audiophiles...they have strong beliefs...a lot of faith..... i do think it is funny, but if they want to pay me to replace some parts by high grade ones because they believe....why not?
https://www.youtube.com/watch?v=xs1aUws0Lrs
Capacitors really goes away while time passes.... bias need readjustment...there are always things that should be done.
regards,
Carlos
Thank you.
I do think i already have "ammo" to start the procedure.
Brazilians are this way....the same as Greek audiophiles...they have strong beliefs...a lot of faith..... i do think it is funny, but if they want to pay me to replace some parts by high grade ones because they believe....why not?
https://www.youtube.com/watch?v=xs1aUws0Lrs
Capacitors really goes away while time passes.... bias need readjustment...there are always things that should be done.
regards,
Carlos
I think you'll find people from every corner of the planet have their own belief system.
Here in australia, most of those that love a particular brand will not be convinced otherwise.
Whenever I do a 'recap', I do every single eletro and the bias trimmers.
I also tell the customer, any unforseen work or repairs will be at extra cost.
Personally I use (and recommend) 105 degree low esr caps.
Not expensive exotic ones, just std ones from my local supplier that I've used for years without issue.
If they want me to use expensive caps, I will. At their expense.
So far no one has, and they've all been exceptionally happy with their 'recaped' unit.
Hi Carlos,
I'm going the same route.
You probably have more spare parts than I have, but I'm counting building an inventory of parts to my costs as well. And I modernized my testing equipment.
To increase my repairing skills I also buy and repair defective amplifiers and sell on for a small profit.
Cheers,
Johan
I'm going the same route.
You probably have more spare parts than I have, but I'm counting building an inventory of parts to my costs as well. And I modernized my testing equipment.
To increase my repairing skills I also buy and repair defective amplifiers and sell on for a small profit.
Cheers,
Johan
I find uncle Carly's question an interesting pass to write down a few things more since (let us not forget)there might be young people reading this and want to learn a few things more or work in the feature with this .
My shop exists for 30 years in May 2015...not always in the same form , only 15 years with this brand name, not always in the same area , and suffered a few mistakes in the past some of them nearly fatal like a very wrong partnership.
In the first 15 years and eventhough the shop was a money making job i got my shelf employed in some jobs to gain more experience. So i did PABX systems and swicth boards , CCTV , Production of electronics and most favorite of all times PA &Audiovisual rental .
It actually helps a lot to have a spherical perception of electronics ...everything counts ...PA and Audiovisual will change what you had in mind about delivery times ...Production will teach you plenty about procedure , Quality control , and most important management of Human resources which will include both stuff and customers .
In the production days i worked for a firm that produced 2N3055 100V hotel amplifiers and 0-10V controlled power dimmers very nice experiences there and it was very nice to be able to salvage the company from mistakes of the past ...The quickest job interview i had in my life ...Owner ( not an electronics engineer ) throws on the table a
2N3055 asking me the use of such a part , and after that a 35A triack asking the exact same question ...i was hired within 5 minutes stay with them for more than 2 years producing designing amplifiers and dimmers . When i left them it was for personal reasons ( was the most well payed job i ever had ) since i felt in love with a girl living elsewhere...The owner announced to the stuff that if Sakis goes away the company has barely one year of life ... They did ... 6 months after i left the company regrouped to something smaller and a year later they shut it down ...One of the biggest mistakes of my life ...
In the service years worked for a firm that did Adcom , Sunfire, Boston Acoustics , Carver , Nakamichi service on guarantee or not . Took me more than 6 months to tide up things inside there and manage to take out of the shop equipment that celebrated birthday inside the service shop ( IE been there more than a year ) .A year later the service was very quick and so advanced that some of the manufacturers consulted us for some production errors that they had !!!!! The bitch wife of the owner 14 months since i got employed there come out with a piece of paper explaining to us that an Adcom 555II should be done in the service within 45 minutes A nakamichi CR7 should be done in no more than one hour and so on and on ...
Left them the same day a year later they lost the authorized service !!
best regards
Sakis
My shop exists for 30 years in May 2015...not always in the same form , only 15 years with this brand name, not always in the same area , and suffered a few mistakes in the past some of them nearly fatal like a very wrong partnership.
In the first 15 years and eventhough the shop was a money making job i got my shelf employed in some jobs to gain more experience. So i did PABX systems and swicth boards , CCTV , Production of electronics and most favorite of all times PA &Audiovisual rental .
It actually helps a lot to have a spherical perception of electronics ...everything counts ...PA and Audiovisual will change what you had in mind about delivery times ...Production will teach you plenty about procedure , Quality control , and most important management of Human resources which will include both stuff and customers .
In the production days i worked for a firm that produced 2N3055 100V hotel amplifiers and 0-10V controlled power dimmers very nice experiences there and it was very nice to be able to salvage the company from mistakes of the past ...The quickest job interview i had in my life ...Owner ( not an electronics engineer ) throws on the table a
2N3055 asking me the use of such a part , and after that a 35A triack asking the exact same question ...i was hired within 5 minutes stay with them for more than 2 years producing designing amplifiers and dimmers . When i left them it was for personal reasons ( was the most well payed job i ever had ) since i felt in love with a girl living elsewhere...The owner announced to the stuff that if Sakis goes away the company has barely one year of life ... They did ... 6 months after i left the company regrouped to something smaller and a year later they shut it down ...One of the biggest mistakes of my life ...
In the service years worked for a firm that did Adcom , Sunfire, Boston Acoustics , Carver , Nakamichi service on guarantee or not . Took me more than 6 months to tide up things inside there and manage to take out of the shop equipment that celebrated birthday inside the service shop ( IE been there more than a year ) .A year later the service was very quick and so advanced that some of the manufacturers consulted us for some production errors that they had !!!!! The bitch wife of the owner 14 months since i got employed there come out with a piece of paper explaining to us that an Adcom 555II should be done in the service within 45 minutes A nakamichi CR7 should be done in no more than one hour and so on and on ...
Left them the same day a year later they lost the authorized service !!
best regards
Sakis
Only if you want a small epidemic of decent units turned into trash by people who thought 'how hard can it be, they show how it's done on the net' and who in fact never even held a soldering iron before...
old equipment is trashed everyday.
it's what this world has come to.
Don't repair anything.
It started back in the 1970's when manufacturers regularly brought out "new" and supposedly better models almost every season.
Now we have crap that lasts 3months of light duty and gets binned.
When will we wake up and DEMAND that retailers/importers must sell repairable equipment AND be required to hold spares for at least ten years after production ceases.
At least we have some recycling for unwanted equipment. Must try looking for a local one since I have never used them yet.
I have inquired at my local refuse tip. They do not allow anyone to take away unwanted equipment. The resources that are getting buried is not sustainable.
it's what this world has come to.
Don't repair anything.
It started back in the 1970's when manufacturers regularly brought out "new" and supposedly better models almost every season.
Now we have crap that lasts 3months of light duty and gets binned.
When will we wake up and DEMAND that retailers/importers must sell repairable equipment AND be required to hold spares for at least ten years after production ceases.
At least we have some recycling for unwanted equipment. Must try looking for a local one since I have never used them yet.
I have inquired at my local refuse tip. They do not allow anyone to take away unwanted equipment. The resources that are getting buried is not sustainable.
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This issue is as much one fundamental to the efficiency and purchasing power of modern manufacturing as it is one of choice on the part of manufacturers. In a mass production environment at high volumes the cost of an assembled product can be only a small multiple of the cost to the manufacturer of the component parts. Those component parts are priced to the manufacturer shipped by the truckload bulk packaged and bought in huge quantities.
When repairing an individual unit there are two hurdles that can be insurmountable. A few hours of repair labor cost can easily approach the burdened cost of the entire factory assembly process for the unit. Much worse is that the cost of repair parts packaged individually, warehoused and marked up for handling and then shipping are hugely more expensive that the manufacturer's cost. In the automobile industry where I put in almost 40 years as an engineer, the rule of thumb for medium sized component prices was x10 cost for a service part compared to the cost of the same part sitting alongside the assembly line. Small electronics parts like resistors and capacitors probably face a much higher multiple of OEM cost to buying a few from Digikey or Mouser.
In the face of this reality electronics manufacturers understandably deemphasize serviceability. We've all had the experience of buying a Smart Blu-Ray/DVD/CD player with wifi for $60US and wondered how in the heck it can be built for that.
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I think there is another practical reality. More and more electronics are made using a high density of surface mount components, and the number of components is decreasing through the availability of integrated circuits. Few humans can even build such electronics, it's done by robots now. Such electronics are very difficult to repair and require specialized equipment and high skill levels. This only widens the gap between the very low cost of manufacture and the very high cost of repair. However, this approach to smaller highly integrated electronics means far less materials used and hence far less to end up in the waste pile.
Audio repair will be focussed on old equipment and guitar amplifiers as that is that will be repairable. The future of consumer audio is very clearly going to be highly integrated Class D amplifiers with digital signal chains. There will be no career in repair unless you are a specialist.
Carlos - you might like to have a friend who is handy with wood to build you a nice bench top mount for holding amplifier chassis whilst you repair them - see attached.
Audio repair will be focussed on old equipment and guitar amplifiers as that is that will be repairable. The future of consumer audio is very clearly going to be highly integrated Class D amplifiers with digital signal chains. There will be no career in repair unless you are a specialist.
Carlos - you might like to have a friend who is handy with wood to build you a nice bench top mount for holding amplifier chassis whilst you repair them - see attached.
Attachments
1 - Let em' buy (and trash) that Walmart Chinese junk. Nice source for toroids and
other passives to fuel my hobby.
2 - Yes , the "upgrade" cycle (and planned obsolescence). It's all about profit ,
the masses won't complain if the initial cost is low and credit comes into play.
If they had to pay hard cash $$ .... they would research much more.
3 - But the initial cost is low and credit based. Most do not consider the MTBF
(mean time between failure) ratio of a more expensive item. If the 150$ junk
lasts 2 years , after 10 years the better 500$ equivalent ends up costing 2/3'rds
as much - they don't think like this.
4 - Here , they do separate and recycle trafo's and any large extrusions.
What get's buried is the mixed E-waste - like a sub with trafo/extrusions/driver.
I get it before it even gets to the final refuse depot.
OS
manu who sell consumer electronics that fail in 2 years likely face class action suits - I received a fee iPod replacement from such action based on early failure of non replicable battery in my 1st iPod
only 3 year life makes the $150 amps a good deal - just invest the difference in price at the start (paying down/not incurring the extra credit card debt has pretty good % rate too)
plus you get newer amps, likely new formats, more features "for free" as long as tech advances
and the optionality of having the extra cash in the early years has a real value in an uncertain world
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B$ ! My digital coffeemaker caught on fire after a year (actually burned).
I bought a tablet at walmart , no store credit or refund after 15 days - NOTHING.
Battery lasts only 2 hours with display dimmed - It works , but is junk.
Most of the Newegg/walmart -Sherwood/sony/pioneer/logitech I find in the waste is just 1 year old with bad caps and blown outputs.
I put better mouser caps- on semi's in them ... sell them and have a receiver in every room . I also have 5 subwoofer toroids - copper is copper....
PS - "Tech" has stagnated in the last 10 years - look at windows vista/7/8/10 ...
OS
why is every retailer pushing warranties with consumer electronic sales?
only because they make a very good profit by not having to pay out in the warranty period for the vast majority of sales
the ratio of warranty cost to wholesale price is a hard limit on their liability/profit - and they are getting a large factor over that as profit on the warranty sales
early failure or years of life is still the common pattern - you also find decade old cheap consumer electronics working fine at yard sales, Goodwill stores, flea markets
early failures like cheap/fake PC mobo electros are news exactly because they are unusual
only because they make a very good profit by not having to pay out in the warranty period for the vast majority of sales
the ratio of warranty cost to wholesale price is a hard limit on their liability/profit - and they are getting a large factor over that as profit on the warranty sales
early failure or years of life is still the common pattern - you also find decade old cheap consumer electronics working fine at yard sales, Goodwill stores, flea markets
early failures like cheap/fake PC mobo electros are news exactly because they are unusual
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