hi, i need to built a preamplifier for LM3886 and i want to do a low noise preamp, a very low noise preamp... i dont know if is better to use jfet or opamps (TL072) (single supply)... i've tried to use BF245 for clean preamp ,but i didn't like them bacuse they were noisy  .... I want to do a preamplifier with 4 knobs like 3 band equalizer (bass, mid, treble) and a switch for bright mode, and level...
I 'd like to have a great clean amp because i really like blues, and jazz....
I hope in your opinion...
THANKS!

hi, so this is my first time into this forum and it's my first message.... So, I'd like to built on my own a new guitar amplifier based on two stages:
1) preamp, I have two tubes by electro-harmonics like 12BH7a, than i want to use them to make a preamp, but only a clean channel, because these tubes have a "little" gain, than a distortion channel is too  difficult to do.
2) amplifier, I'd like to use two LM3886 in parallel to get 100W on 4 Ohms, but I don't know if LM3886 is a good chip for audio riproducing and a good audio quality... so, i'm not sure.... anyone have this experience by usuing a LM3886 chip? is it good? so, i'd like to use LM3886 because its cheaper than CMOS or BJT guitar amplifier

thank for all
and sorry for my bad english :-)