Don't the Pass XP preamps have selectable gain?

Ah, input level matching. Yes, I understand.

Now that you mention it I also seem to recall seeing something about the XP-10 having 0 or 10dB of gain. The online manuals don't seem to have this info.

It's too bad Pass / Wayne decided to forego the Mono control on the XP series. That comes in handy sometimes.

Tony,
I just compare the XP-20 manual which I received with my preamp to the online manual from the Pass Labs website. They are not the same document. In my manual, there is a paragraph located between the "Theater pass through" section and the "Electronic volume control" section which describes in good detail what the gain settings are. I quoted from this section in my post above. For some reason, it does not appear in the on-line manual. There are also other differences between the two manuals.

Hmm, I don't suppose one of them is the mentioning of a mono switch? :-)

Nope. I agree. My old X-1 had a mono switch.

Tony,
Some of the XPs have selectable gain, some don't. I just talked to Pass. You should contact them. They are most helpful on the phone or via email.