hi
i have got a qsc 1310 pcb made for both the channels.it was copied from a working qsc 1310 which was pulled apart .most of the qsc usa series pcbs are avaliable ,and there is a guy in our part of the world who makes duplicates of the qsc ones and sells at a quarter of the price.
any one interested i could get the pcbs for you.there are 2 pcbs 1 for right and another one for the left channel.
i have got a qsc 1310 pcb made for both the channels.it was copied from a working qsc 1310 which was pulled apart .most of the qsc usa series pcbs are avaliable ,and there is a guy in our part of the world who makes duplicates of the qsc ones and sells at a quarter of the price.
any one interested i could get the pcbs for you.there are 2 pcbs 1 for right and another one for the left channel.
Here in India now due to bulk use in inverters Irf mosfets are cheaper than bipolar transistors , a number of Irf p250 can be used in parallel to make a highpower dj amp , I think these mosfets are 200v 180w devices , hence rails can go upto + / - 80 or even 90v .
Can anyone contribute a good N channel Fet poweramp design ? .
Can anyone contribute a good N channel Fet poweramp design ? .
You should use more than one amp. Class D for the sub-woofers, and then use a more hi-fi amp for the mid-range, and another for the highs. Make a crossover for the input, run the output of these amps to the appropriate speakers.
You will get much better power efficiency this way...sort of like a good car system.
You will get much better power efficiency this way...sort of like a good car system.
cunningham
You are right , yes my system is 3 way active, like this you have better control of the overall sound , but I think we are off topic ,
I had requested if anyone could give a schematics of a high power amp using n-channel Irfp250 mosfets in the output ,or a link for the same , it may be class AB or class D
You are right , yes my system is 3 way active, like this you have better control of the overall sound , but I think we are off topic ,
I had requested if anyone could give a schematics of a high power amp using n-channel Irfp250 mosfets in the output ,or a link for the same , it may be class AB or class D
Re: hi
Ok Here u came Mr. Copier for nothing.
Faster than a Xerox
Coping Someones hardworked design than selling it is like that its one of the worst crimes happenning in electronics world.
only people like u were intersested in these PCBs.
If Pat Quilter [Ceo -QSC]Finds these guys He will surely give them a good lesson.
Regards
Ampman
yugaaa said:
Ok Here u came Mr. Copier for nothing.
Faster than a Xerox
Coping Someones hardworked design than selling it is like that its one of the worst crimes happenning in electronics world.
only people like u were intersested in these PCBs.
If Pat Quilter [Ceo -QSC]Finds these guys He will surely give them a good lesson.
Regards
Ampman
hi
Ok Here u came Mr. Copier for nothing.
Faster than a Xerox
Coping Someones hardworked design than selling it is like that its one of the worst crimes happenning in electronics world.
only people like u were intersested in these PCBs.
If Pat Quilter [Ceo -QSC]Finds these guys He will surely give them a good lesson.
Regards
Ampman
Man please read my post carefully .Did I mention that I made the pcbs?
I bought those pcbs from a shop here locally ,and in my post I happened to mention that the pcbs are readily avaliable.
I bought the pcb ,to understand the circuit ,and I dont think ,the circuit was something extraordinary .
lastly ,any product sold in India ,China ,will be copied ,duplicated ,bad luck .,to pat ,and u ,lol
Ok Here u came Mr. Copier for nothing.
Faster than a Xerox
Coping Someones hardworked design than selling it is like that its one of the worst crimes happenning in electronics world.
only people like u were intersested in these PCBs.
If Pat Quilter [Ceo -QSC]Finds these guys He will surely give them a good lesson.
Regards
Ampman
Man please read my post carefully .Did I mention that I made the pcbs?
I bought those pcbs from a shop here locally ,and in my post I happened to mention that the pcbs are readily avaliable.
I bought the pcb ,to understand the circuit ,and I dont think ,the circuit was something extraordinary .
lastly ,any product sold in India ,China ,will be copied ,duplicated ,bad luck .,to pat ,and u ,lol
"If u purchase the PCb and Fabricate them , Is it not a copying also.
Secondly , U cant copy our designs as u copy QSC because of some sealed amalgamatic techniques.
So no badluck for me"
did i ever mention that i fabricated the boards ?
whoever u are ,god save u ,for thinking that ,only you make amps in this part of the world .
comparing your amps with qsc ,lol ,i cant imagine your state of mind .
neways ,good luck to you and your amalgamatic techniques .
Secondly , U cant copy our designs as u copy QSC because of some sealed amalgamatic techniques.
So no badluck for me"
did i ever mention that i fabricated the boards ?
whoever u are ,god save u ,for thinking that ,only you make amps in this part of the world .
comparing your amps with qsc ,lol ,i cant imagine your state of mind .
neways ,good luck to you and your amalgamatic techniques .
Banned
Joined 2002
((whoever u are ,god save u ,for thinking that ,only you make amps in this
part of the world .
comparing your amps with qsc ,lol ,i cant imagine your state of mind .
neways ,good luck to you and your amalgamatic techniques .))
Yuqaaa
You are right , I would not buy an amp which has (( some sealed
amalgamatic techniques.)) because then I would be dependant only on
the manufacturer for servicing .
The Top branded companies give service mannuals for their products
so that their products can be serviced in any part of the world . Also the
product sells by the reputation and quality control of the manufacturer
they are not bothered by any body coping who cannot even dent the
market of their products , yes somtimes it matters BUT they CARE for
their customers first.
A simple example in India is the brand AHUJA who give the schematic
with every Amp , so many people have copied their amps , BUT that has
NOT effected the sales and market of their Amps. Hence QSE ,
CROWN , CREST etc which are international brands sell their products
because of their Quality and reputation.
I repair amps , sometimes I really curse the manufacturers when I see
devices from which the nos have beeh scratched off or black paint has
been put on the whole pcb . Like this it is very difficult to do the repairs.
Who suffers --the customer ofcourse|||| In India this is very common in the
Brand "Stranger", I hope they will realise their mistake and stop putting
the paint.
Ampman I have never heard of your amps , but a friendly advise ,learn
something from the big companies--- please always think of the
customers FIRST and you will always be sucessful . Your hard work and
quality product will speak for itself . Your product is here because of your
customers ONLY.
GOOD LUCK
part of the world .
comparing your amps with qsc ,lol ,i cant imagine your state of mind .
neways ,good luck to you and your amalgamatic techniques .))
Yuqaaa
You are right , I would not buy an amp which has (( some sealed
amalgamatic techniques.)) because then I would be dependant only on
the manufacturer for servicing .
The Top branded companies give service mannuals for their products
so that their products can be serviced in any part of the world . Also the
product sells by the reputation and quality control of the manufacturer
they are not bothered by any body coping who cannot even dent the
market of their products , yes somtimes it matters BUT they CARE for
their customers first.
A simple example in India is the brand AHUJA who give the schematic
with every Amp , so many people have copied their amps , BUT that has
NOT effected the sales and market of their Amps. Hence QSE ,
CROWN , CREST etc which are international brands sell their products
because of their Quality and reputation.
I repair amps , sometimes I really curse the manufacturers when I see
devices from which the nos have beeh scratched off or black paint has
been put on the whole pcb . Like this it is very difficult to do the repairs.
Who suffers --the customer ofcourse|||| In India this is very common in the
Brand "Stranger", I hope they will realise their mistake and stop putting
the paint.
Ampman I have never heard of your amps , but a friendly advise ,learn
something from the big companies--- please always think of the
customers FIRST and you will always be sucessful . Your hard work and
quality product will speak for itself . Your product is here because of your
customers ONLY.
GOOD LUCK
Commentable Thoughts
Hi Rajeev ThanX for ur Constructive Criticism.
The Label of Output Devices Of Our Amps i.e mosfets is not Scratched or even painted black they are as such left intact without any deformation.
Secondly We only Give Service Complete manuals to Qualified Service Personnel with our Dealerships
As far as Comparing the amps with QSC Yes We do Dare to compare our products with them BECAUSE we engineered our amps to International Professional Standards + our end user Customers feel that our product are performing better than QSC .
As far as copying is considered , In countries like USA and european states copying is very difficult and is quite immpossible to some extent because of Strict Copyright laws.
But In our Country Copying is Like a layman's Job , so thats why we are a bit cautious regarding our amps.
Ahuja is based in India Since 1950 and has a very good and strong market whereas Stranger is Based in Calcutta from 10 years ago only.
In our Case we are in our Initial State of Growth and Development
therefore Time and commitment towards excellence is important factor for Being a famous entity.
In about 2 or 3 weeks we are going to do Business in Calcutta with main Distributors of QSC and Peavey, i.e. Ms Rohira Electronics Calcutta.
Again I wish To Thank Suranjan Das Gupta - Hunter audio for showing interest in us and helped us a lot.
With Regars
WORKHORSE AUDIO GROUP
rajeev luthra said:
Hi Rajeev ThanX for ur Constructive Criticism.
The Label of Output Devices Of Our Amps i.e mosfets is not Scratched or even painted black they are as such left intact without any deformation.
Secondly We only Give Service Complete manuals to Qualified Service Personnel with our Dealerships
As far as Comparing the amps with QSC Yes We do Dare to compare our products with them BECAUSE we engineered our amps to International Professional Standards + our end user Customers feel that our product are performing better than QSC .
As far as copying is considered , In countries like USA and european states copying is very difficult and is quite immpossible to some extent because of Strict Copyright laws.
But In our Country Copying is Like a layman's Job , so thats why we are a bit cautious regarding our amps.
Ahuja is based in India Since 1950 and has a very good and strong market whereas Stranger is Based in Calcutta from 10 years ago only.
In our Case we are in our Initial State of Growth and Development
therefore Time and commitment towards excellence is important factor for Being a famous entity.
In about 2 or 3 weeks we are going to do Business in Calcutta with main Distributors of QSC and Peavey, i.e. Ms Rohira Electronics Calcutta.
Again I wish To Thank Suranjan Das Gupta - Hunter audio for showing interest in us and helped us a lot.
With Regars
WORKHORSE AUDIO GROUP
some sealed amalgamatic techniques
hi @all
I always had a notion that people resort to the abovesaid techniques ,when they cant design anything ,and copy ,then seal the whole thing so that ,they can still stand tall ,as a manufacturer ,designer .
Once ,i remember ,there was a pulse series amp from crown ,which had an smps supply ,which could not be serviced ,just because of schematic unavaliablity .I had even opened a thread on that ....The amp had to be sent back to the manufacturer due to that .
I have heard of many local brands ,like ahuja who give out schematics with their amps ,but ,never heard of workhorse amps ......
hi @all
I always had a notion that people resort to the abovesaid techniques ,when they cant design anything ,and copy ,then seal the whole thing so that ,they can still stand tall ,as a manufacturer ,designer .
Once ,i remember ,there was a pulse series amp from crown ,which had an smps supply ,which could not be serviced ,just because of schematic unavaliablity .I had even opened a thread on that ....The amp had to be sent back to the manufacturer due to that .
I have heard of many local brands ,like ahuja who give out schematics with their amps ,but ,never heard of workhorse amps ......
Dear Ampman,
Although my roots are from punjab I have rarely visited the state,
I had made my first mosfet amp in 1981 which was 150w with Hitachi
Mosfets 2sj and 2sk series , the same is still working and sounds very
good too..Five years back I had made a few 500w mosfet amps , I use
these for small programmes .
You must be using Irf N-channel mosfets in your amps as they are easily
avilible now in India , but Igbt,s must be sounding better as they have the
best of both (mosfets and bipolar transistors )
Please do NOT worry about people copping your amps , firstly it needs
brains even to copy , secondly if someone does it , you can think it is
worth his trouble . So many people have copied AHUJA amps but they
do not work as well as Ahuja , it will also be the same case with you , you
should be proud that your product is so good that others are trying to
copy it .CONCENTRATE ON QUALITY OF YOUR PRODUCT and you
will always be a winner.
Here is something interesting to make every thing LIGHTER,
" A girl used to live in a flat in a multistoried building , she had a fixed
time to change her clothes before going to bed every night , as there
was no building nearby she never cared to turn off the lights . One day
someone told her that there is a guy who watches you change every day
from another building which was far away using binocullars , Guess what
what she replied....... first she was a little angry then she said " if he
takes so much trouble to watch then its worth his effort "
Although my roots are from punjab I have rarely visited the state,
I had made my first mosfet amp in 1981 which was 150w with Hitachi
Mosfets 2sj and 2sk series , the same is still working and sounds very
good too..Five years back I had made a few 500w mosfet amps , I use
these for small programmes .
You must be using Irf N-channel mosfets in your amps as they are easily
avilible now in India , but Igbt,s must be sounding better as they have the
best of both (mosfets and bipolar transistors )
Please do NOT worry about people copping your amps , firstly it needs
brains even to copy , secondly if someone does it , you can think it is
worth his trouble . So many people have copied AHUJA amps but they
do not work as well as Ahuja , it will also be the same case with you , you
should be proud that your product is so good that others are trying to
copy it .CONCENTRATE ON QUALITY OF YOUR PRODUCT and you
will always be a winner.
Here is something interesting to make every thing LIGHTER,
" A girl used to live in a flat in a multistoried building , she had a fixed
time to change her clothes before going to bed every night , as there
was no building nearby she never cared to turn off the lights . One day
someone told her that there is a guy who watches you change every day
from another building which was far away using binocullars , Guess what
what she replied....... first she was a little angry then she said " if he
takes so much trouble to watch then its worth his effort "
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