Hi Audio exparts,
I am looking for a 1k to 500W audio amplifier in AB class mode operation. Kindly suggest me any any related design that might be cheap and reasonable.
Regards
Hasan
I am looking for a 1k to 500W audio amplifier in AB class mode operation. Kindly suggest me any any related design that might be cheap and reasonable.
Regards
Hasan
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5kW, seriously? This could be, for example; two amp’s in BTL mode with rails of +-140Vdc. When you would look at Safe Operation Area of the output devices, you will notice that you need probably around 20pairs per amp!
Of you want some quality, I don’t believe you can DIY this amp for less than €3000 (rough estimation). Of it is for PA, I suggest to get a class D.
Of you want some quality, I don’t believe you can DIY this amp for less than €3000 (rough estimation). Of it is for PA, I suggest to get a class D.
class AB has an efficiency of 64% 5kw output will require a 7,800 watts from your power supply, and 2800 is wasted as heat.....are you serious?
Okay guys!
Lets start with 500W.
Suggest me how could I supply my +\- 60 VDC for preamp or amp.
Class D won't make money at this moment in this area.
Related technical notes, reference will appropriated.
Really well said. 5W is a big issue to handle with. Don't you think I need also speaker or mic protection. How about class H.
Depending on the source price of the parts and for the desired power, maybe around a thousand dollars more or less.
This design is open source, and the build files are shared in our local facebook group.
This design is open source, and the build files are shared in our local facebook group.
Take oldish DBTechnologies PA2.0 or 3.0 well known schematic and just build it.
But what's the goal?
Full-band amplifier asks for ugly passive XOing, so out of interest.
Active digital XOing allows you to divide power between drivers. Since lows and subs are really slow - the can be easily amplified by D-class while relatively fast highs (compression driver) doesn't need such a power.
With responses like these, I hear nothing but alarm bells ringing.
Sounds like Hasan has less than no idea what they want or actually need and is wanting to make a commercial product.
Hasan - How about you you tell us what your requirements are, what the end use is, and what your budget is.
ask Mr. Nelson Pass.
A mingling or marriage of SuSy (X-series, bridge configuration) and STASIS (serial mode of output power devices for high voltage applications) maybe provides the wanted output power.
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