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25th April 2019, 05:19 AM
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#1151 |
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diyAudio Member
Join Date: Sep 2001
Location: Melbourne, Australia
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Hi Prasi,
I have reworked it for best performance, but there are limitations with only 12V and a stiff 32R load. Both limitations increase the THD but the harmonic profile is still very good, with typical THD of 0.03% at 1Vpp into 32R load at 1KHz. H2 is dominant. At 32R load you are limited to an output of about 2Vpp. At higher impedance loads, such as a 280R Beyerdynamic, your output voltage rises to 9.2Vpp, which is very loud indeed. Your resistor divider for the input voltage reference is a little off, and you should use a bias resistor of 22k, rather than 10k, to minimise changes to the divider reference voltage. The adjusted schem is attached. Nice circuit, sounds wonderful! Hugh |
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25th April 2019, 07:11 AM
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#1152 | |
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diyAudio Member
Join Date: Jan 2014
Location: Pune, India
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Quote:
Thank you so much! You are a master at this craft! I will surely build it. Thank you again. Regards Prasi
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