My LM4766 + 6p15p project, and LM1875 project.

Hi.
I thought it would be interesting to show my pcb to others, hear opinions, etc.
After failed search for LM4766 pcb on internet, i decided to route myself. Because all pcb's i found on net was really bad...
I need to say, that i don't believe in expensive parts.
Only thing i care - no ceramics or electrolytics in signal path.

This PCB uses three stages of power supply bypassing:
1. 2x2200uF
2. 3x22uF
3. 3x0.22uF (smd)
Bypassing scheme based on LM4780 datasheet :)

input bias resistor to gnd 47K
input resistor 1K
input capacitor 0.68uF (-3db at 5Hz)

feedback 4k7 and 47K (smd) gives gain of 11
feedback caps 100uF
zobel 4r7 and 0.1uF
mute resistor 8k2 (smd) pulls about 2mA, 1mA per ch.
signal ground separated from power with 3r3

All smd 0805.

Amp sounds awesome, very strong and accurate bass and clean highs.
Probably a little better than my LM1875, which runs down to 1.5Hz what is too low on my poor small test speakers. But with normal speakers everything probably be different.
This LM4766 pcb is interchangeable with my LM1875 PCB, so i tested it with same power supply that my LM1875 uses (8 x mbr340 and 6x2200uF)

I going to try bi-amping with LM4766 to 310hz, and from 310hz with 6P15P tube amp.
Tube amp is tested and works really nice
And later i will post photos of almost finished LM1875 amp.

LM4766 pics:
http://img189.imageshack.us/img189/686/p1060447f.jpg
http://img839.imageshack.us/img839/561/p1060448wt.jpg
http://img268.imageshack.us/img268/6849/p1060449.JPG
http://imageshack.us/a/img14/2341/lm4766lay.png

6p15p Tube amp (PCB routed by me too)
http://imageshack.us/a/img845/1649/p1060387n.jpg
http://imageshack.us/a/img855/4548/p1060388e.jpg
http://imageshack.us/a/img825/1682/tubelay.png
http://audio.ring.lt/se3/se3_e.html (I do not own this website)