100W Ultimate Fidelity Amplifier

[yyoyyox]

redesign AX11 stereo

Nice work, what is the post number with AX11 stereo pcb design?
Regards

Mr. Mile, I be able to model ax11 PCB one channel (mono).
MR wiljj78 not post PCB stereo.
Explanation, because I like to see a stereo amplifier and PSU One. s
Ax11, I became Stereo redesign.
Request! Mr. Mile, TDA2030 can share scheme? (schematic only)?
thanks amplifier scheme.
regards

 

[3388ton]

hi wow

 

[QQ12e5k1]

AX14

My AX14...with Apex logo and led display.

 

[apexaudio]

My AX14...with Apex logo and led display.

Nice work

 

[Maroof]

Mr Mile, How can I increase gain of Ax11?

 

[apexaudio]

Mr Mile, How can I increase gain of Ax11?

Replace R8, use 680R instead 2k2

 

[Gost22]

MPSA13 replacement with BD680?

Hi Mr Mile!
What changes are needed in the schematic (AX-11) if you replace Q6=MPSA13 with BD680 and Q10=BD249C with MJ15003, Q11=BD250C with MJ15004 and SPKR=4R?
thank you!

 

[Maroof]

Replace R8, use 680R instead 2k2

Thanks

 

[mihailo]

Use this PCB for MJ15003/15004, with BD679 not BD680.
It works just fine with no changes.

 

[cook77]

Today I made a test between ax14 and ax17. No doubt , winner is ax17. Far better sound:bass lower than my ears can hear and treble crisp and clear! STEREO MODE! Anyway ax14 sound is very good , I've noticed that it has some improovements than classic schematics! Sorry about my "english" ! I'll try ax11 next week maybe

 

[apexaudio]

Today I made a test between ax14 and ax17. No doubt , winner is ax17. Far better sound:bass lower than my ears can hear and treble crisp and clear! STEREO MODE! Anyway ax14 sound is very good , I've noticed that it has some improovements than classic schematics! Sorry about my "english" ! I'll try ax11 next week maybe

AX17 with DC servo?

 

[cook77]

AX17 with DC servo?

No dc servo, PCB made by AlexMM , 1 pair output each channel.

 

[alex mm]

..... or with 2 pairs OP transistors
Regards , Alex

 

[apexaudio]

..... or with 2 pairs OP transistors
Regards , Alex

No name pcb?

 

[sergiovaz]

..... or with 2 pairs OP transistors
Regards , Alex

BOTTOM Pcb, Please.

 

[sergiovaz]

..... or with 2 pairs OP transistors
Regards , Alex

 

[Gost22]

Power supply

Use this PCB for MJ15003/15004, with BD679 not BD680.
It works just fine with no changes.

Hi Mihailio!
I have the power supply Ucc = +/-37V/250VA, whether will operate this audio amplifier with MJ15003/MJ15004 with this power supply?
thanks!

 

[alex mm]

..... corrected now .....
Alex

 

[DAMANHURI]

..... corrected now .....
Alex

Thanks Sir for Share

 

[apexaudio]

..... corrected now .....
Alex

Thanks,
Regards