~700w ampifier

xazopartalos · 28th October 2007, 08:03 PM

Hi i need a schematic for amplifier ~700w rms at AB class.
Help please.

Donk · 28th October 2007, 08:14 PM

Hi,

~700W?
IMHO it's worth to buy one instead of DIYing. Cheaper (!) and better.

Best regards,

MJL21193 · 28th October 2007, 08:17 PM

Hi,
What is the load? 4 ohms? 8 ohms?

Leolabs · 29th October 2007, 02:03 AM

And for what purpose???PA??Hi Fi???

destroyer X · 29th October 2007, 08:45 AM

700 watts is not an amplifier...it is more a weapon!

You can "kill" your neighboor's ears with that thing.... and kill speaker.

Aahhaha.... very common that need when the guy is from Greece.

Nice place.... filled with warriors till the top.

Hey Xazopartalos!..... piece brother!!!

By the way.... this 700 watts... is this a stereo?... say 350 plus 350 watts?..... can this be 700 watts over 4 ohms speakers?

regards,

Carlos

jacco vermeulen · 29th October 2007, 11:27 AM

Why settle for 700, given the number of bridgeable schematics available for free from PA manufacturers such as Crown ?
A loaded HiFiver can pick the X1000(clony)

(Donk's avatar is more a Honk-Honk quality grade)

quasi · 29th October 2007, 11:29 AM

Hi Carlos,

nothing like brute power to win a battle, but sometimes cunning plans are required also and the Athenians were good at that.

Xazopartalos, here is a design that will do more than 700 watts into a 4 ohm load. This link takes you to a build by a fellow DIYA constructor of one of my designs.

http://www.diyaudio.com/forums/showt...52#post1303252

Yiasas (from another Greek)
Quasi

sreten · 29th October 2007, 11:34 AM

http://sound.westhost.com/project117.htm

/sreten.

xazopartalos · 29th October 2007, 04:11 PM

The drawing need in order to I make amplifier-arm <> ¶
and all this in order to play in a friend which has 300w rms in 10x10 room and playing finish thus in order to drazy. ¶
The amplifier I want it has this force in the 8ΩM and ~700 rms to hifi !!!!!!! <> ¶

Donk · 29th October 2007, 04:30 PM

Hi Xazopartalos,

OK, so 700W/8Ohm.
Wow! That's 210Vp-p, meaning about +/-120V rails.
I'd rather build 350W/4Ohm amps with about +/-65V rails and would bridge them.

A much effective solution would be to DIY or buy speakers with better SPL. A 95dB rated spk with a 100W amp kills.
I'm sure your friend has some cheap ~85dB speakers - that's why he needs 300W for real loud music.

Best regards,
"The Honk-Honk quality grade"

28th October 2007, 08:03 PM	#1
xazopartalos diyAudio Member Join Date: Oct 2007	~700w ampifier Hi i need a schematic for amplifier ~700w rms at AB class. Help please.

29th October 2007, 11:27 AM	#6
jacco vermeulen diyAudio Member Join Date: Oct 2004 Location: At the sea front, just under Rotterdam	Why settle for 700, given the number of bridgeable schematics available for free from PA manufacturers such as Crown ? A loaded HiFiver can pick the X1000(clony) (Donk's avatar is more a Honk-Honk quality grade) __________________ Looks like Sponge Bob has killed another thread.

29th October 2007, 11:29 AM	#7
quasi diyAudio Member Join Date: Sep 2004 Location: Adelaide, Australia	Hi Carlos, nothing like brute power to win a battle, but sometimes cunning plans are required also and the Athenians were good at that. Xazopartalos, here is a design that will do more than 700 watts into a 4 ohm load. This link takes you to a build by a fellow DIYA constructor of one of my designs. http://www.diyaudio.com/forums/showt...52#post1303252 Yiasas (from another Greek) Quasi __________________ http://sites.google.com/site/quasisdiyaudiosite/

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28th October 2007, 08:14 PM	#2
Donk diyAudio Member Join Date: Sep 2007	Hi, ~700W? IMHO it's worth to buy one instead of DIYing. Cheaper (!) and better. Best regards,

28th October 2007, 08:17 PM	#3
MJL21193 Account disabled at member's request Join Date: Mar 2007	Hi, What is the load? 4 ohms? 8 ohms?

29th October 2007, 02:03 AM	#4
Leolabs diyAudio Member Join Date: Dec 2004 Location: Bukit Mertajam	And for what purpose???PA??Hi Fi???

29th October 2007, 11:34 AM	#8
sreten diyAudio Member Join Date: Nov 2003 Location: Brighton UK	http://sound.westhost.com/project117.htm /sreten.

29th October 2007, 04:11 PM	#9
xazopartalos diyAudio Member Join Date: Oct 2007	The drawing need in order to I make amplifier-arm <> ¶ and all this in order to play in a friend which has 300w rms in 10x10 room and playing finish thus in order to drazy. ¶ The amplifier I want it has this force in the 8ΩM and ~700 rms to hifi !!!!!!! <> ¶

29th October 2007, 04:30 PM	#10
Donk diyAudio Member Join Date: Sep 2007	Hi Xazopartalos, OK, so 700W/8Ohm. Wow! That's 210Vp-p, meaning about +/-120V rails. I'd rather build 350W/4Ohm amps with about +/-65V rails and would bridge them. A much effective solution would be to DIY or buy speakers with better SPL. A 95dB rated spk with a 100W amp kills. I'm sure your friend has some cheap ~85dB speakers - that's why he needs 300W for real loud music. Best regards, "The Honk-Honk quality grade"

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