I have a HiFiBerry DAC+.
I'm building a PLLXO (Passive Line Level X-Over) (because I'm biamping and I'm looking to eliminate my active crossover).
I'm curious what sort of input impedance my PLLXO will need for the HiFiBerry DAC+ to be most happy (delivering full output in glorious sound quality)?
I've tried googling this, nobody seems to know.
Also, I've tried googling the output impedance of the HiFiBerry DAC+ and found one person I think tested it at 480-Ohms. Apparently there is a rule of thumb that input impedance should be 20x output impedance, I'm a neophyte and I'm not sure about that, and I'm not sure if the 480 was correct.
Any input would be mucho appreciated.