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Old 30th December 2003, 10:17 AM   #1
darkm4n is offline darkm4n  Romania
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Default Good 300 W 8 Ohm power amplifier .

Hi , anyone here know a good 300 W 8 Ohm minim power amplifier ?
I'am searching for something not very hard to build and not very expensive...

Thank's !
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Old 30th December 2003, 10:56 AM   #2
darkm4n is offline darkm4n  Romania
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Default Hi again ...

Maybe P3A from sound.westhost.com it's good for me ..
Someone know a layout for this amplifier ? ( PCB )
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Old 30th December 2003, 11:30 AM   #3
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Default 300 Watt Amp

Hi,
Build the ESP P68 , I am presently running 4 in a club and they really kick butt, easy to build and Rod's boards are very well made.
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Old 30th December 2003, 11:38 AM   #4
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Default hi

you can build the elektor trans 300 w amp , using mj 2 x 15003 and 2 x mj 15004 in the out put stage , requirs about 650 va or so
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Old 30th December 2003, 12:20 PM   #5
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300W @4 ohms
OR
300W @8 ohms
Plz Clarify
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Old 30th December 2003, 01:30 PM   #6
bawang is offline bawang  Malaysia
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Or, try the Superleach amp at around 270W into 8 ohms, about double this into 4 ohms at Prof. Leach's website. A search for "Leach Amplifier" will produce results....
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Old 30th December 2003, 01:39 PM   #7
darkm4n is offline darkm4n  Romania
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300 W in 8 Ohm .

I can't build the Leach amp .. i can't find some transistors here in romania .. i relly like that amp .. well documented .. very good design .

What about the elekton amp ? someone mention about this one upper in this tread ...

Also .. maybe P68 is a good idee .

Thank's !
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Old 30th December 2003, 01:56 PM   #8
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Default Elektor amp

The elektor amp features as follows
+-65VDC @625VA transformer
Although a Symmetrical design PA300 W
Frontend consists of Ne5534 Opamp served as diffrential amp
Voltage amplification and current drive is achieved by MJE15032 and MJE15033 drivers and output stage consists of 2 X MJ15024 and MJ15023 devices
A descent design by Riedl
Disadvantages
Requires too much heat sinking or u have to use force cooling
low slew rate
medium damping factor
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Old 30th December 2003, 07:04 PM   #9
darkm4n is offline darkm4n  Romania
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Default Hmm...

Maybe ... what you would recomand me ?
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Old 30th December 2003, 08:15 PM   #10
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Default Re: Elektor amp

Quote:
Originally posted by darkm4n
i can't find some transistors here in romania.
Thank's !
you don't have to have the exact transistors. Just find the datasheet for the transistors used and find their equavalents in your country.

Quote:
Originally posted by amp_man_1
A descent design by Riedl

thanks like an interesting design. do you have a schematics for it?
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