100W Ultimate Fidelity Amplifier

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Joined 2013
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hi mr mile...my prroblem about fh11 be solved.with replace 150R with 470R.fh11 is good an stable.
i need a grafic equlizer/tone control with bass booster/fast speaker protection.
please tell wich is best.
best regards...

This 150r to 470r stopped the power-on noise? To clarify, you changed R9 from this schematic/board layout? I am having similar issue, but negative DC for about 1-2 secs, pulls the woofer in. Hardly any real noise, but if I can avoid I would like to.
 

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  • FH11 Ver1.07v.JPG
    FH11 Ver1.07v.JPG
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  • FH11-HV-V1.07 schematic.JPG
    FH11-HV-V1.07 schematic.JPG
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AX14 questions

I obtained some boards from PCBway as per this post https://www.diyaudio.com/forums/sol...mate-fidelity-amplifier-1044.html#post5479358

Has anybody build from this PCB? I have found the matching BOM and started a shopping basket with Mouser.

prasi, I see you were getting components together a while ago, did you complete the build?

Regards PSU, I have a 300VA 30+30 toroid I am intending to use, that suitable (expecting around 100W output).

Its an interesting and lengthy thread but the number of variants has been somewhat confusing!

Thanks, Chris
 
This 150r to 470r stopped the power-on noise? To clarify, you changed R9 from this schematic/board layout? I am having similar issue, but negative DC for about 1-2 secs, pulls the woofer in. Hardly any real noise, but if I can avoid I would like to.

i can not kill popup noise.but when replace 150R/R9 with 330R or 370R mje350 and 2n5551's dont be hot....and circuit be stabl.but with 470R sound be very bad...because drivers can't work properly.you use 330R.
i dont know that how kill popup noice...mr mile just can help us.mr mile if you hear me heeeeeeellllpppp us please.
 
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