esta es el diagrama de la fuente hasta donde pude realizar, lo que pasa cuando conecta todos los componentes en fisico es que los potenciales se quien al variar el volumen, la lista de componentes por si no se puede apreciar bien son estas

Google translate from Spanish:
this is the diagram of the source up to where I could make it, what happens when you connect all the components physically is that the potentials change when the volume varies, the list of components in case it is not clear is as follows:
quisiera saber que cambiar o que esta mal en el diseño, para poder cambiarlo

I would like to know what to change or what is wrong with the design, so I can change it.

Moderator edit: Google translation from Spanish.

 

I did not understand the question, but certainly the ripple current in the four capacitors will be quite a lot if much load current is being drawn. This will cause a ripple voltage at the input side of the regulator circuit.

 

Este es un sitio web solo en inglés. Por favor, publíquelo en inglés.

This is an English site. Please post in English.

 

I think there is a mistake at D3, D4. Are you trying to make the output go down to 0 volts?
I see a 2.2V "battery" under the LM317 which makes the minimum voltage 3.45 volts.

If you want the output to go to 0V the "battery" or Zener needs to be make a negative voltage.

 

If use a TLV431 shunt reference for D3 and D4 it will give very close to the voltage needed to allow U1 and U2 to be adjusted to zero output.

 

Even though yo entiendo perfectamente el Español, your post still doesn’t make sense.
You mentioned that the voltages change as you rotate the voltage adjustment potentiometer. To use your words whenever you varías el volumen.
Well, that is to be expected in a variable power supply, isn’t?
So, what is really your concern?

 

I think he means the voltage changes when the AUDIO volume changes.

An audio power amplifier does not need regulated power supply.

 

Might be, we don’t know for sure.

Even in Spanish the phrase is poorly constructed and therefore confusing.

 

What are your transformer specifications?

 

Hello,

The BOM he posted shows a LM317HV and a LM337HV.
Those are the high voltage versions of the LM317 and LM337.
The LM317HV is supposed to work upto 60 Volts.
The LM337HV is supposed to work upto -47 Volts.
See the attached datasheets.

Bertus