Approaches to using internal power transformers in multi-effect unit

[guitylerham]

Here is my 10-in-1 analog multi-effect unit that I am designing. It will contain ten effects, buffers at the beginning and end, a tuner, and possibly a fun VU meter to display output level. I will be using two Weber transformers with the eight 11vac secondaries and one 9vac. My plan is to mount them on inside of the box as shown in the drawing. My question: will noise be an impossible reality with this design? Is there a way to physically shield and minimize it? I'm concerned about noise from the transformers getting into the audio path as well as "crosstalk" between circuits that I've read about. Is there a way to enclose each circuit board in an electro-shielded cage (Faraday cage?)? How do you guys who have done this before go about ensuring minimal noise? This project is getting closer and closer to the end stage. Now it's time to start installing the components. I really appreciate the help you all have given me so far. The questions never end!

[defaced]

Where's the input?  Typical practice in guitar amps is to put the PT and the input at opposite ends of the chassis.  I would start with that.  The tiny signal from the guitar is easily influenced by the EMF kicked out by the PT.  Also, shielded cable for the signal wires would be highly recommended, especially near the input where the signal is small.  Since you're using those transformers, I'm assuming each effect is getting it's own power supply and subsequent chassis ground connection, yes?

[guitylerham]

Ah! Good idea on the separating the guitar input and transformers. I hadn't considered that obvious part yet. I will have to see if there is room to put the transformers on the left hand side now because I'd prefer the input to be on the right side of the enclosure.

Yes, each effect will get a dedicated secondary. I plan to earth the AC power from the wall to the chassis/enclosure.