100W Ultimate Fidelity Amplifier

AX-14

Hi,
this is my AX-14 with 2 pair 5200/1943 output and mje15032/15033 drivers. PSU is 2x53 VDC and 30mF per rail. It plays very well,strong bass and clear mid and high. Now i will try to build AX-11 with TO-3 transistors .
 

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OK boys, one more time.

Meet the NX-14 using On-Semi MTW32N20E MOSFETs. I have the bias set to 100mA and it sounds really nice. Here are some pics of the top and underside so you can see the mods I needed to make to the boards to make the layout match the schematic. So now I've done AX-14, SX-14, NX-14 and AX-Slewmaster. I can't think of any other ways to use the boards aside from maybe different outputs. :D

Blessings, Terry
 

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OK boys, one more time.

Meet the NX-14 using On-Semi MTW32N20E MOSFETs. I have the bias set to 100mA and it sounds really nice. Here are some pics of the top and underside so you can see the mods I needed to make to the boards to make the layout match the schematic. So now I've done AX-14, SX-14, NX-14 and AX-Slewmaster. I can't think of any other ways to use the boards aside from maybe different outputs. :D

Blessings, Terry

Nice work,
Regards
 
I'm not sure if On semi makes these anymore. I got them a few years ago to use in my Aleph-X. They didn't make a complementary P-channel device so I have kept my eyes pealed for an amp that used only N-channel so I could give them another try. I was excited to see this design come along. Sounds really good.

Blessings, Terry
 
AX20
 

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Mile, I have a question (well two):

is it possible to use a balanced input signal to drive two AX11 boards, one with plus &GND, and the other one with minus&GND, with speaker bridged between plus and minus? (so a bridged configuration but with balanced input instead of single-ended input plus phase splitter).

p.s. I also have not decided on PS yet. you had a schematic somewhere earlier. is that one a good performer or I could do better (not sure where taht one came from and if any noise measurements were available?)

Thanks a lot.
 
Mile, I have a question (well two):

is it possible to use a balanced input signal to drive two AX11 boards, one with plus &GND, and the other one with minus&GND, with speaker bridged between plus and minus? (so a bridged configuration but with balanced input instead of single-ended input plus phase splitter).

p.s. I also have not decided on PS yet. you had a schematic somewhere earlier. is that one a good performer or I could do better (not sure where taht one came from and if any noise measurements were available?)

Thanks a lot.

It is possible
 
Mile, I have a question (well two):

is it possible to use a balanced input signal to drive two AX11 boards, one with plus &GND, and the other one with minus&GND, with speaker bridged between plus and minus? (so a bridged configuration but with balanced input instead of single-ended input plus phase splitter).

p.s. I also have not decided on PS yet. you had a schematic somewhere earlier. is that one a good performer or I could do better (not sure where taht one came from and if any noise measurements were available?)

Thanks a lot.
if you can post a schematic it is more clear .