Look at HDDs with 6TB-10TB capacity.
Prices range from less than $100 to $300 for HDD only.
CD quality files WAV are relatively large files.
If redundancy is not an issue a single portable storage device will work.
https://www.amazon.com/Elements-Desktop-Hard-Drive-WDBWLG0080HBK-NESN/dp/B07G3QMPB5/ref=zg_bs_595048_9?_encoding=UTF8&refRID=25126804WK413ZZXGMXF&th=1
Installation Option is available.
Reformat the Drive for MAC use.
A USB connection is Required.
Use a good quality USB cable.
You will need Digital to use digital USB input to the Preamp.
Control from listening position is a whole separate matter.
Prices range from less than $100 to $300 for HDD only.
CD quality files WAV are relatively large files.
If redundancy is not an issue a single portable storage device will work.
https://www.amazon.com/Elements-Desktop-Hard-Drive-WDBWLG0080HBK-NESN/dp/B07G3QMPB5/ref=zg_bs_595048_9?_encoding=UTF8&refRID=25126804WK413ZZXGMXF&th=1
Installation Option is available.
Reformat the Drive for MAC use.
A USB connection is Required.
Use a good quality USB cable.
You will need Digital to use digital USB input to the Preamp.
Control from listening position is a whole separate matter.