100W Ultimate Fidelity Amplifier

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wiljj78

wiljj78

Member
Joined 2012
AX-11 Rev.2

Zobel resistor was change to 1W as per schematic.

Regards,
 

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apexaudio

apexaudio

Member
Joined 2010
Vostro said:
Mr Mile what do you think about +/- 40V dc supply, expecting about ~80W into 8R
Instead for 2.2k in feedback network, change to 820R to easy full drive from cell phone out.
Change the two 330p for something lower, maybe 100p.

Regards
Click to expand...

You can use +/-40V dc supply and increase gain with 820R instead 2k2 also 100pF instead 330pF can be use, but I suggest to use some 2SA/SC... instead BC, BD...

Regards
 
Vostro

Vostro

Member
Joined 2012
Mile, I've had some time to look closer at your AX11.
I've looked at a Marantz that used a buffer for each (non+inv) input.

I think your mirror buffer is more elegant.
The amp looks like it will not need such a large heatsink, and make a cool little amp.
I like your small pcb for this amp too.

Thanks for sharing.
 
apexaudio

apexaudio

Member
Joined 2010
Vostro said:
Mile, I've had some time to look closer at your AX11.
I've looked at a Marantz that used a buffer for each (non+inv) input.

I think your mirror buffer is more elegant.
The amp looks like it will not need such a large heatsink, and make a cool little amp.
I like your small pcb for this amp too.

Thanks for sharing.
Click to expand...

I agree, AX11 will be very popular cool little amp for beginners but also diyers with experience can made it for fun, good sound is guaranteed :)
Regards
 
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