100W Ultimate Fidelity Amplifier

[Sunny22g]

Good headphone amp was P8 but I do not know where is the schematic.

link pp8

Studio Reference Amplifier

 

[Sunny22g]

Dc 45+ - bais is 30map .I think this is best for a40(6_8ampair) transformer .

 

[rehman]

link pp8

Studio Reference Amplifier

😀😀😀😀
one of these??

 

[Sunny22g]

2nd 3rd

 

[prasanna gunasinhe]

hello everyone. i want to make a headphone amplifier so i need a good quality schematic for headphone amplifier. can someone help me?????🙂🙂

http://www.ti.com/lit/ds/symlink/tpa6120a2.pdf

Please check above I am using it (made by s.m.s.l SAP ii) good quality!
😉😉😉

 

[rehman]

http://www.ti.com/lit/ds/symlink/tpa6120a2.pdf

Please check above I am using it (made by s.m.s.l SAP ii) good quality!
😉😉😉

thanks for suggestion but it is unavailable in my area.

 

[rehman]

2nd 3rd

i will go with pp12😎

is it suitable psu for pp12

 

[Sunny22g]

i will go with pp12😎

is it suitable psu for pp12

???? ??????? ??? ??????? APEX 2x24V DC.

 

[rehman]

???? ??????? ??? ??????? APEX 2x24V DC.

yes

 

[prasanna gunasinhe]

thanks for suggestion but it is unavailable in my area.

try eBay😀😀

 

[Sunny22g]

I am also making pp12 and liner

 

[apexaudio]

alexmm made pcb for sr pp12

 

[Sunny22g]

alexmm made pcb for sr pp12

O My god this is very good

 

[masood251]

Please anyone tell me that in fh9 i want to know the direction of zener 12volts and mosfet irfp9240 or irfp9140 what is its right.Thanks

 

[maouna]

I have started building P8 preamp but it has 23db gain.I would like to have around 10 db gain but i am afraid stability margins will get worse if i lower the gain.

 

[ivanlukic]

Use 3k3 for R6 and if there is instability try higher value for C7 and C8 (220pF or 330pF). Also, the value of C4 should be 50 to 100 times the value of C1 in order to avoid interaction between them. So, use at least 470uF for C4.

 

[shabusf]

Hi Mr. Mile,
Could you please help me out with this query.

Thank you
Sha

Hi Mr. Mile,
Could you please suggest the best preamp for A40; its P30 or P30ZF?

Thank you.
Sha

 

[Gurpreet Turna]

I have started building P8 preamp but it has 23db gain.I would like to have around 10 db gain but i am afraid stability margins will get worse if i lower the gain.

Which one P8. I am confused. I found this schematic on post no. 1800 in studio reference amplifier forum.
Mr. Miles plz explain.

Regards

Gurpreet

 

[apexaudio]

Hi Mr. Mile,
Could you please help me out with this query.

Thank you
Sha

P30

 

[maouna]

Use 3k3 for R6 and if there is instability try higher value for C7 and C8 (220pF or 330pF). Also, the value of C4 should be 50 to 100 times the value of C1 in order to avoid interaction between them. So, use at least 470uF for C4.

Should i change R10 from 10K to 22K as R2 for minimum output offset?Also could i use a 10p cap across R10 or from T6 collector to base of T3 to improve stability?