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#1 |
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diyAudio Member
Join Date: Feb 2010
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I am looking to build something like a 2000 watt subwoofer amp pushing 2 15's in a home made cabinet.
The hardest part seems to be to find a transformer that will supply 2000w at the 40-60v the chip amp needs. eBay - New & used electronics, cars, apparel, collectibles, sporting goods & more at low prices I am wondering if there is a chip amp kit where I can use the 110 straight on. I am using an equipment power/conditioner supply that currently is a 10000w capacity, and I may get a second one if its full to capacity as well as put fuses etc to prevent big blow up's with lightining strikes etc. Thanks. Srinath. |
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#2 |
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diyAudio Member
Join Date: Feb 2003
Location: ..
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any discussion of direct power line use is Prohibited here - it is simply UNSAFE
get a transformer - then there are chip amps that can be paralleled and bridged for 200 W output even then the highest supply V cheap option - the TDA7293 can only take 100 V between Vsupply pins |
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#3 |
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diyAudio Member
Join Date: Oct 2007
Location: Cambridge, MA
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Antek has several 1500VA transformers in that voltage range and 1500w pre-made power supplies.
Antek - Your reliable source of transformers, power supplies, and more. Good luck, Nelson |
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#4 | |
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diyAudio Member
Join Date: Feb 2010
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Quote:
Cool. Srinath |
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#5 |
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diyAudio Member
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2kW from a chipamp is impossible unless you run many of them in parallel - and even then that power will only be achievable on a very low impedance load (certainly lower than 2 ohms). You need a discrete design.
__________________
"Audio grade" components simply means that they failed at a more critical job. |
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#6 |
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diyAudio Member
Join Date: Feb 2004
Location: Anonymityville
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I think the only devices even close to being a "chipamp" that will get you to that power level would be something like the LME49830/LME49811/LME49810.
__________________
"If you don't like funerals don't kick sand in Ninja's face." - Ninja |
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#7 |
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diyAudio Member
Join Date: Jan 2002
Location: Sweden
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Why not a Cirrus PA52. It does 200 V with 40 A continous out (80 A peak). Could be a good candidate?
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UrSv Those who say it can't be done should not stop those who are doing it. |
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#8 |
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diyAudio Member
Join Date: Feb 2004
Location: Anonymityville
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Yeah, that's practical. A chipamp made out of a >$800 power op-amp? And that would only be one channel!
__________________
"If you don't like funerals don't kick sand in Ninja's face." - Ninja |
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#9 | |
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diyAudio Member
Join Date: Jan 2002
Location: Sweden
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Quote:
__________________
UrSv Those who say it can't be done should not stop those who are doing it. |
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#10 |
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Soldering Gun Fanatic
diyAudio Member
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Sounds like a job for a Class-D powerhouse to me, rather than a chipamp.
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