i'm still in high school, so don't expect much progress on this as i have a limited budget
so i'm making a hi-fi amp. i was browsing around digi key and i came across a lme49811 chip. i found out that the highs aren't really good, so i did more poking around digi key. then found this this LM4702B chip. i saw the specs were super good, and it used mosfet drivers, which means it has high wattage output. so here are the specs:
300 watt per channel
2 channels (you only really need two most of the time)
toshiba 2sk1530/2sj201 mosfets
then i found out how crappy the quality of most DACs and pre amps were, and how expensive the good ones were so i had to build that too (aw sh!t)
so here are the specs:
for the DAC i'll be using two chips
spdif/coax (pcm) to audio interface
32khz-192khz sample rate
-107db (0.0004467%) thd+n
the pre amplifier will consist of a burr-brown OPA2134, i might not use this, or maybe select a different chip because that will cause too many stages in my amplifier, inducing lots of distortion.
yeah, not much to see here.
while i'm at it, might as well make a super sensitive stage just for microphone input:
1.2 nv sensitivity
any suggestions? comments?