ameliorate the headphone amp base on Harmon Kardon C17

Status
This old topic is closed. If you want to reopen this topic, contact a moderator using the "Report Post" button.
I have just finished a headphone amplifier base on Harmon Kardon C17 ,but the differential pair BJT what I used is MAT01
(ADI dual t BJT).Althouth the performace is enough good, I want to improve it. MAT01,you know ,that is a excellent dual matched transistor,I hope there is a better design scheme to make the most of the charactrictics of MAT01.so could someone

help me to ameliorate it ?

Thanks a lot!

apologize for my poor English.:D
 

Attachments

  • or.jpg
    or.jpg
    41.2 KB · Views: 179
what are your goals - which headphones?

headphones vary from 16 Ohms to 600 Ohms and can requre as little as 200mV or as much as 12 V rms to reach 120 dB SPL

an amp with enough gain and V swing for one extreme might be hoplessly noisy and uslessly over sensitive volume adjustment with a headphone from the other end of the impedance and sensitivity range

http://headwize.com/library.htm

is a good place to learn about the many options in headphones and amplifiers
 
Status
This old topic is closed. If you want to reopen this topic, contact a moderator using the "Report Post" button.