Manley Chinook Owners Tube Rolling

You just purchased it.

Spend time listening to it, and enjoy it.I've tried both the stock version and the SE. Either way, its a nice unit.

Subjectively, tube rolling can change the sound. Depending your own hearing, it can be subtle or you may not even hear it as an improvement. Power cord may also change presentation.

You just bought it.

Listen to your records and enjoy them for at least a month. Asking about changing an already good setup, is a not a good sign.
I tried both versions of the Chinook. It's a great unit either way. Tube rolling is subjective, it can be very subtle,or not noticeable at all depending on your own ears/system.