Peter,
It am sure you know what you meant, but I saw a risk your
phrasing could be misinterpreted as saying that it really isn't
dangerous, but just a forum rule. I wanted to clarify so nobody
gets the wrong impression here. It wasn't meant to pick on you,
and I forgot to point that out. Sorry. I just wanted to try
explaining why it is dangerous.
It am sure you know what you meant, but I saw a risk your
phrasing could be misinterpreted as saying that it really isn't
dangerous, but just a forum rule. I wanted to clarify so nobody
gets the wrong impression here. It wasn't meant to pick on you,
and I forgot to point that out. Sorry. I just wanted to try
explaining why it is dangerous.
I am well aware of the danger of that, and I would never recommended to use such setups (when device is powered directly from mains). I also realized my incorrect wording and that's why I explained/corrected it.
A moderator should always be an example of correct safety practices, I know that too
A moderator should always be an example of correct safety practices, I know that too
Matttcattt said:sorry to cause all the fuss. i understand the dangers of mains. i did not know that this was a forum rule, i will re-read the rules now.
would it work with +/-115vDC using an isolation transformer (1:1 windings) from the mains?
5000W with +/-115v is about 20A isnt it?
did you know, that first off that transformer would still be huge... second when rectifying AC to DC you times the voltage by 1.41 giving you +-163 volts, and thirdly, you need a centre tap...
Matttcattt said:
with +/- 324v DC, you are talking about potential voltage drops on the output devices of 324vx2=650v before any safety factors.
Realistically, you are probably talking about 1000v Vce/Vds devices. they are probably difficult to find and you may have to parallel a lot of them to drive 8ohm speakers,
1000W RMS Power Amp
As someone who builds 1000W amps every day, I have had spectacular resilts with the ICEPower modules from B&). The 1000A costa us less than US$100.00 a unit.
As well, the 1000ASP is available to us for under US$200.00 and it includes a regulated switching 120/240V Power supply. Plus, the 1000ASP power supply has enough power capacity, it can drive a 1000A module, giving you 2000W of sub woofer power.
Alternately, it can drive 2 of the 500A modules to give you plenty of mid and high on a tri-amp system.
The prices are 100+ OEM prices. You will have to lookaround to see who may sell them. See:
http://www.powerhouse.bang-olufsen.com/sw1022.asp
As someone who builds 1000W amps every day, I have had spectacular resilts with the ICEPower modules from B&). The 1000A costa us less than US$100.00 a unit.
As well, the 1000ASP is available to us for under US$200.00 and it includes a regulated switching 120/240V Power supply. Plus, the 1000ASP power supply has enough power capacity, it can drive a 1000A module, giving you 2000W of sub woofer power.
Alternately, it can drive 2 of the 500A modules to give you plenty of mid and high on a tri-amp system.
The prices are 100+ OEM prices. You will have to lookaround to see who may sell them. See:
http://www.powerhouse.bang-olufsen.com/sw1022.asp
- Status
- This old topic is closed. If you want to reopen this topic, contact a moderator using the "Report Post" button.