Thank you again to everyone for your help on this.
I know my low-powered JLH amp has plenty of room for improvement. Does it sound like I'm getting sucked into this hobby? 🙂
- Should I replace my 12V laptop power supply with higher voltage/amperage? Is the JLH69 amplifier sensitive to power supply differences? In other words, is there any difference between internal (like a toroidal) vs an external (like a nice laptop-type) power supply?
- Is a JLH circuit like the one I built sensitive to component quality? Would replacement with tighter-tolerance resistors/caps/etc make any sonic difference?
I know my low-powered JLH amp has plenty of room for improvement. Does it sound like I'm getting sucked into this hobby? 🙂
- Should I replace my 12V laptop power supply with higher voltage/amperage? Is the JLH69 amplifier sensitive to power supply differences? In other words, is there any difference between internal (like a toroidal) vs an external (like a nice laptop-type) power supply?
- Is a JLH circuit like the one I built sensitive to component quality? Would replacement with tighter-tolerance resistors/caps/etc make any sonic difference?
I apologize for such basic questions, but I'm not familiar with any electrical engineering. I've been reading plenty of past threads about the JLH69 amp circuit and haven't found the info I'm looking for.
Apart from lower power output, does using a 12V power supply change the character of this amp's sound? I assume the components shipped with my Chinese kits are pretty low-quality (sloppy tolerances or fake brands) would it make an audible difference to go with "the fancy stuff" in a JLH69 circuit?
This thread below has a pic of my amp as it is now. Thanks for any insights you guys are willing to share.
https://www.diyaudio.com/community/...questions-please-excuse-me-for-asking.406835/
Apart from lower power output, does using a 12V power supply change the character of this amp's sound? I assume the components shipped with my Chinese kits are pretty low-quality (sloppy tolerances or fake brands) would it make an audible difference to go with "the fancy stuff" in a JLH69 circuit?
This thread below has a pic of my amp as it is now. Thanks for any insights you guys are willing to share.
https://www.diyaudio.com/community/...questions-please-excuse-me-for-asking.406835/
I don't want to leave you without an answer.
What I can tell you is that it is very widely documented and that the simpler the recipe, the more important the ingredients.
yes the power supply is very important, yes the output capacitor is very important, yes the balancing of the power transistors is important, yes the driver is important, yes the bootstrap is important, BUT, it all depends on what you want to do with this amp and what is your level of involvement.
What I can tell you is that it is very widely documented and that the simpler the recipe, the more important the ingredients.
yes the power supply is very important, yes the output capacitor is very important, yes the balancing of the power transistors is important, yes the driver is important, yes the bootstrap is important, BUT, it all depends on what you want to do with this amp and what is your level of involvement.