500W PA amplifier with Limiter - Page 61

khalsa · 18th August 2010, 05:15 PM

hi coolet i like your h900 with tl071 but i think 8pair transister and double step driver is much better for 2ohm load you desine pcb as like dj dumy

black · 19th August 2010, 02:11 PM

500 W amplifier with mosfet that made him one? the sound?

apexaudio · 19th August 2010, 03:11 PM

Quote:

Originally Posted by black

500 W amplifier with mosfet that made him one? the sound?

Amplifier with mosfet in thread:
MOSFET Amplifier IRFP240/IRFP9240
have very good sound and stability.
Regards

A square · 24th August 2010, 08:44 AM

hello sir, can u show me urs projects pics.......

apexaudio · 24th August 2010, 10:11 AM

Quote:

Originally Posted by A square

hello sir, can u show me urs projects pics.......

I share circuits of my old discounted projects, I don't want use forum for advertising my commercial products. You can see my B250 in post #40.
Regards

TonyLalay · 26th August 2010, 04:52 AM

Quote:

Originally Posted by apexaudio

Brigge and Soft-start

Hi Mr Apex..im interest B500 dan H900..for bridge mode in B500 dan H900..how much outpower in 8 ohm dan 4 ohm ?..sorry my english..thank you Apex

electra_ina · 27th August 2010, 12:53 AM

Hi..Apex... For B500 can I used tranformator with secondary CT-62VAC?? Its too big? If I will used this tranformator, which componen must be change?
Pozdrav

adrianm · 1st September 2010, 12:13 AM

Hi Mr. Apex, can share with me the PCD layout and parts of D14 amp.

apexaudio · 2nd September 2010, 03:54 PM

Quote:

Originally Posted by TonyLalay

Hi Mr Apex..im interest B500 dan H900..for bridge mode in B500 dan H900..how much outpower in 8 ohm dan 4 ohm ?..sorry my english..thank you Apex

B500 1000W/8R, H900 1800W/8R in bridge mode I not recomand to use 4R load.
Regards

apexaudio · 2nd September 2010, 03:58 PM

Quote:

Originally Posted by electra_ina

Hi..Apex... For B500 can I used tranformator with secondary CT-62VAC?? Its too big? If I will used this tranformator, which componen must be change?
Pozdrav

Use 5 pair of outputs with 2x62vac transformer, no need to changes only use 4k7/2W resistors for 15V zeners.
Pozdrav

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18th August 2010, 05:15 PM	#601
khalsa diyAudio Member Join Date: Dec 2007	hi coolet i like your h900 with tl071 but i think 8pair transister and double step driver is much better for 2ohm load you desine pcb as like dj dumy

19th August 2010, 02:11 PM	#602
black diyAudio Member Join Date: Dec 2006	500 W amplifier with mosfet that made him one? the sound?

24th August 2010, 08:44 AM	#604
A square diyAudio Member Join Date: Aug 2010 Location: tasmania	hello sir, can u show me urs projects pics.......

27th August 2010, 12:53 AM	#607
electra_ina diyAudio Member Join Date: Mar 2009 Location: Near Jakarta	Hi..Apex... For B500 can I used tranformator with secondary CT-62VAC?? Its too big? If I will used this tranformator, which componen must be change? Pozdrav

1st September 2010, 12:13 AM	#608
adrianm diyAudio Member Join Date: Feb 2009	Hi Mr. Apex, can share with me the PCD layout and parts of D14 amp.