Hmmm, that's a tough load. If you find a pot rated at 220kOhm or higher & yr source has a benign output impedance (say ~150 Ohm or lower) with the usual voltage, you should be able to do it! If you set it up and listen at various volume levels, you'll easily identify at which position(s) the pot sounds best -- and you're set!
I have 10kOhm amps input and 22 Ohm output fm the cdp. Using a very cheapo 220kOhm pot, I get the job done famously!
I have 10kOhm amps input and 22 Ohm output fm the cdp. Using a very cheapo 220kOhm pot, I get the job done famously!