Quote Originally Posted by Hyfi View Post
Thanks BR, but I guess my main question is, will I get a better change in sound by changing the AU7s or the AX7s. I don't understand enough as to what the AU7s do. I do understand the AX7s are the output and add gain.
In my preamp I have a pair AX7's which are the left and right gain. I have a pair of Au7 with one not going through the signal becasue it some how is for the power supply. The other Au7 has both AX7's signal going through it. So I assume the Au7 in your has the gain stage going through your Au7's.

I changed out my stock Au7 for a Tulefunken Au7 and it gave me a better presentation. I think the Au7 would change the sound more...but I have yet to change the AX7's.