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Old 3rd October 2013, 09:40 AM   #2601
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My e mail Mr. wiljj78, vedmitraa@gmail.com
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Old 3rd October 2013, 09:51 PM   #2602
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Thank You so much Mr.Wiljj78.

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Old 4th October 2013, 01:18 AM   #2603
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Hi, I have several designs gyh class, my email is jluis.hp @ gmail.com
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Old 4th October 2013, 01:46 AM   #2604
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also have some of 2000w to 5000w? class g and h?
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Old 7th October 2013, 04:27 AM   #2605
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Hi, can you send me design of class h and g. My email iiee3602@yahoo.com.ph
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Old 7th October 2013, 04:36 AM   #2606
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Originally Posted by jose luis guerrero View Post
Hi, I have several designs gyh class, my email is jluis.hp @ gmail.com
Hi, can you send me of class g and h design. thanks!
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Old 24th October 2013, 09:05 AM   #2607
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Hi everaone

I am new on this forum and I want to ask some questions.

Somebody tried to make power supply for APEX H900 with voltages 100VAC-50VAC-0-50VAC-100VAC???

I have transformer with those voltages and want to use it for this amp if it is possible.

I know that is pretty high but I just want to know if somebody tried to do this?
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Old 26th October 2013, 12:12 PM   #2608
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Originally Posted by antonamp View Post
Hi everaone

I am new on this forum and I want to ask some questions.

Somebody tried to make power supply for APEX H900 with voltages 100VAC-50VAC-0-50VAC-100VAC???

I have transformer with those voltages and want to use it for this amp if it is possible.

I know that is pretty high but I just want to know if somebody tried to do this?
H900TEF with add more outputs can use PSU with this voltages.
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Old 28th October 2013, 07:28 AM   #2609
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I found the old transformers with voltage 35Vac-0-35Vac and I'll use them. I have two of the same so that the power problem solved. All I care about how much power your amplifier with a voltage of 70VAC-35VAC-0V-35VAC-70VAC??? Thank you.
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Old 30th October 2013, 01:01 AM   #2610
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Originally Posted by antonamp View Post
I found the old transformers with voltage 35Vac-0-35Vac and I'll use them. I have two of the same so that the power problem solved. All I care about how much power your amplifier with a voltage of 70VAC-35VAC-0V-35VAC-70VAC??? Thank you.

allow to me to try.

if transformer has 70Vac, in reality when connected to a load, this voltage will sag, let's say by 10% regulation, to 63Vac.

according to Mr Ohms, P = V*V/R, therefore

for 8 ohms load, P = 63*63 / 8 = 992W

for 4 ohms load, P = 63 * 63 / 4 = 1984W

however, Class H amp usually has efficiency of let's say 78%, therefore

for 8 ohms load, 992W * 78% = 774W

for 4 ohms load, 1984W * 78% = 1548W

(correction is welcome, if any. thanks.)
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