BTL 800W 4R Output L15

[ljm_ljm]

Network failure.

Hair figure again.

This is my a client installation machine photos yesterday.

Power amplifier and separated. This is also possible.

 

[kallel123]

l15 by LJM

Hello LJM i have also built this amplifier one of my favorites so far very easy to listen, no fatigue great power i use 25-0-25 300VA it's my daily listening amplifier.at first it hummed but i fixed it with a simple star ground very quite can,t even tell it's on until music starts very nice dynamics very pleasing Thank Very Much for this design .

 

[kallel123]

p.s.

p.s mine is also separate power supply and i use passive preamp works excellent.

 

[camargo]

Hi LJM, Congratulations on your design, this is an excellent amplifier, it really surprised me. I would like to ask a question, what voltage should I use to get the 450w rms at 4 ohms? I'm waiting, thank you very much ...

 

[Erlend Sæterdal]

Bare boards

Hi I have 6 sets off Irf 240/9240 but there is not possible to buy boards for L 15 anyware.

 

[ljm_ljm]

Hi LJM, Congratulations on your design, this is an excellent amplifier, it really surprised me. I would like to ask a question, what voltage should I use to get the 450w rms at 4 ohms? I'm waiting, thank you very much ...

DC + - 60V。
AC 42-0-42
Sorry for the long reply. Because I didn't know someone asked me. ha-ha.

 

[ljm_ljm]

Bare boards

Hi I have 6 sets off Irf 240/9240 but there is not possible to buy boards for L 15 anyware.

Yes, irfp240 9240 is very expensive. About three dollars two PCS

 

[huggygood]

maybe it's time to take a little vacation 🤨

 

[ljm_ljm]

maybe it's time to take a little vacation 🤨

you 're right. Only when I have a vacation can I have time to watch BBS.
I didn't pay attention most of the time. No way out. don't have time.