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Old 30th June 2007, 03:26 PM   #1
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Default Power amplifier 400watts or up

Hello! can any one help me? im searching for a schematic diagram of a power amplifier that can deliver about 400watts RMS or up.. to an 8 ohm 18" 600watts speaker... co'z im planing to build a Sub-woofer amplifier that i can add to my simple mobile sound system... hmmm... i want to try the DX amp... but i don't think that can match the power i needed.
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Old 30th June 2007, 04:47 PM   #2
microp is offline microp  Latvia
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HI! You can use bridged Dx turbo. It will be 600W RMS
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Old 30th June 2007, 06:04 PM   #3
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Default Hi!

Try Quasi or power amplifier on development.
It is good enaoght for your use.

Regards zeoN_Rider
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Old 1st July 2007, 01:09 PM   #4
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hi microp,

600watts power is great.. do you have a circuit diagram of that DX turbo?

hi Zeon rider,

Quasi power amp is good.. but im bothered with the cost of building one co'z mosfet transistors were too expensive here in our country.. but still the idea of building Quasi power amp would be secondary...

thanx!

regards
Riche


Riche
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Old 1st July 2007, 02:12 PM   #5
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Default Hi!RM

Have you look at Quasi bipolar, very cheap.

Regards zeoN_Rider
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Old 2nd July 2007, 08:17 AM   #6
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hi..

thanx alot man, have you heard about the W-type sub woofer And the G-box? do you have the idea about the dimentions of the baffle? they usually use this baffle on an open field as wide as a softball ground. here in the phillipines, the W-type Baffle was renamed as "sub-zero"....from Pampanga, Philippines... it sound really great... maybe tomorrow i'l attach an illustration on how it look like...
thanx!

riche lemuey
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Old 27th November 2009, 10:10 PM   #7
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to richie,

they dont know about the word G box, it is a folded horn or in normal call it is a scoop bins,ours in philipppines we called it g box for an unknown reason. w type is called w-bin or w-box..........hope u understand:sm ash:
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Old 28th November 2009, 09:39 AM   #8
ontoaba is offline ontoaba  Indonesia
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Bridged Class-D or single class-H will do better at 400W into 8ohm (it is 56 VAC rms or 160 Vpp needed to drive your speaker at 400W, only professional class amp do that thing)
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Old 28th November 2009, 09:53 PM   #9
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hi riche
greetings try dr borivoges stagemaster mk 2 legend 500 watts at 8 ohms use IRFP 250 hexfets as output transistors easy to build.
thanking you
andrew lebon
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Old 29th November 2009, 09:03 AM   #10
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Quote:
Originally Posted by rogerjuvy View Post
to richie,

they dont know about the word G box, it is a folded horn or in normal call it is a scoop bins,ours in philipppines we called it g box for an unknown reason. w type is called w-bin or w-box..........hope u understand:sm ash:
I believe it is called G sub from rog mogale's site

Last edited by audiomachines; 29th November 2009 at 09:07 AM. Reason: wrong spelling of rog's surname
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