I have put off upgrading my door speakers (Powerfuluk) until I have tried lossless audio as seen elsewhere on the forum..

So first how do I get the audio into my system in the car - I have a few options.
!. Memory Stick
2. CD player
3. New Iphone to system via Bluetooth
4. Good old Aux port (but what to use for storage - old iPhones
5. Whats the best format to use - I only have iPhones

then
What software do I use and what download services do others use - there are plenty on the net.

Finally
I was just going to download an album 320kbs MP3 and the same album in High Res Audio and see if I could tell the difference.

You can tell I'm suffering from lockdown boredom, I used to sell decent hifi back in the day, we would laugh at Japanese stuff as HiFi for the deaf (lots of lights to look at and knobs to twiddle) and would certainly pour scorn on the Class D amp I have just bought for something else. But time marches on my old company went bust and the lifestyle companies prevailed.

c'est la vie as they say  Geoff

I have my HiRes stuff on an AK Jr. You can download music from any of the services - HD Tracks, Qobuz etc. I run this through the USB port. However, I have my trusty iPod (recorded at 256kbs) and I have to say the reproduction is so good (compared to the L322 at any rate) I pretty much stick with that.

You can also play hi-res Audio DVD - I have a fair few - which is spectacular.