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Old 05-04-2022, 04:20 AM   #1
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Default What 'class' is this Hill Audio DX3000 Amplifier?

Hi guys, this is general query really

So I have a Hill DX3000 3KW audio amplifier here.

It has a topology/design like a class A/B but all the banks of output transistors (10 transistors in each 'side' of the channel) are NPN.

I was wondering what class this is. It doesn't fit the description of class A.
It also doesn't match class A/B or B amplifiers as all the examples I see have a complimentary output stage desigs (NPN/PNP) and clearly is not G, H or D

I looked for 'class A push pull' but that didn't tell me anything either

Here is the schematic. So what is it?

OOPS WRONG PIC - On moment

Attached Images
File Type: jpg 20220503_121334.jpg (700.2 KB, 25 views)
Attached Files
File Type: rar hill_dx1000_dx2000_dx3000_amp_sm.rar (17.89 MB, 22 views)
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Last edited by dicky96; 05-04-2022 at 04:22 AM.. Reason: WRONG PIC LOL!!!! one minute...
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