Yes. Don't have too much series resistance, as that can sometimes lead to motorboating. The PSU output impedance should remain lowish at all frequencies where the audio circuit has some gain.
Old Rules:
Design First Cap for 5% ripple.
The PT-Rectifier-1stCap loop must be Small and Fat. This loop is full of crap. Don't connect rest-of-circuit anywhere except AT 1st Cap.
Design each R-C filter for 30dB loss at 100/120Hz; i.e. around 3Hz poles. Trying for more per section leads to "too expensive" cap sizes. Also residual resistance limits how much reduction you can really get.
More R-C stages is better. It is usually the higher harmonics which are most annoying. More stages is a steeper roll-off.
A key design decision is raw DC to filtered DC voltage. Large resistors filter better but make large voltage drop. I recall a Heath which started with 500V at the power stage but dropped to 90V at the first preamp tube-- the many R-C stages made that first node clean even with "small" filter caps.
BUT: New Rules: cap prices have come way down over the decades. It may now be very reasonable to design for 2% and 1Hz. I would still keep the number of R-C stages high. While C-R-C may be ample for power amp push-pull driver, a phono preamp would normally want at least four R-C stages of filtering.
Motorboating can be a different issue. While limiting resistances may help, the real technique is to develop the forward gain, and derive the sneak-back path, and compare gain/loss. While "filtering" aims for reduction of 100Hz+, hi-fi amps with sub-20Hz response need capacitor "clamping" down below 1Hz. This does favor high-C low-R design, which is now economical.
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