100W Ultimate Fidelity Amplifier

[apexaudio]

Mr. Mile,
What's the changes if I will use AX14 with 80-0-80 VDC rails using 3 pairs A1216/C2922 SANKEN transistor?
Thanks,

No changes, use 4r7 base resistor and 0,33r for emiter for each output transistor.
Regards

 

[thimios]

Oh thanks my friend!

 

[remle114]

This is my AX14 with TEF OPS 7 pairs of output
I assembled this last January 2012 running on +/- 90 VDC

 

[wiljj78]

No changes, use 4r7 base resistor and 0,33r for emiter for each output transistor.
Regards

Thank you...

 

[wiljj78]

This is my AX14 with TEF OPS 7 pairs of output
I assembled this last January 2012 running on +/- 90 VDC

Nice one remle, can you share your driver board?

 

[remle114]

Sorry sir willy this s a 3 year old project and i lost all my files because my hard disk failed a year ago

 

[wiljj78]

Sorry sir willy this s a 3 year old project and i lost all my files because my hard disk failed a year ago

Its Ok sis... thanks anyway i'll pm you.

 

[apexaudio]

Thank you...

There is AX20 with 3 pair... use this schematic.
Regards

 

[wiljj78]

There is AX20 with 3 pair... use this schematic.
Regards

Well noted, Thanks..

 

[rakesh_sharma23]

Some more update on 8 Channel Amp building. Still waiting for few caps to arrive.

 

[maxwell007]

it's time to try some other Apex

 

[maxwell007]

I am not so fast like Terry, but.. I would like to also try P30 like universal preamp for my power amps.. I hope, that will work for all amp, which i already build...

 

[apexaudio]

Some more update on 8 Channel Amp building. Still waiting for few caps to arrive.

Nice work,
Regards

 

[apexaudio]

it's time to try some other Apex

Nice choise A14 is very good CFA amp with diamond OS, P30 CFA preamp will work with any amp.
Regards

 

[44250]

There is AX20 with 3 pair... use this schematic.
Regards

maybe this would help?

(in first Zip i´d say it was Ardrew Lebon´s work,all the other files are from OlafK)

 

[Binely]

Thanks for posting. Much less confusing doing through-hole construction, those class D amps can get fiddly for me.

 

[maxwell007]

Mile, pls. what is maximum rail voltage for A14 ? Thanks...Marcel

 

[wiljj78]

Nice choise A14 is very good CFA amp with diamond OS, P30 CFA preamp will work with any amp.
Regards

I love AX-14...

 

[maouna]

can mjl21193-94 be used in ax-14 without stability problems?

 

[apexaudio]

can mjl21193-94 be used in ax-14 without stability problems?

Yes, and many other pairs.