Hi robolowski
The PM8003 will drive the XQ30's fine. They're a relatively easy load and can be driven by most amps. Unfortunately, the same can't be said for the Reference series. Although many of them may seem a relatively high sensitivity, they require plenty of power in order to sound as they've been designed to. While an 80 watt amplifier may drive them (to an extent), it'll be lacking enough guts to get them singing. Unless driven properly, the Model 1 and Model 1.2 lack punch, and sound quite heavy.
It is far better for an amplifier to outclass a speaker than it is for a speaker to outclass an amplifier.
If you want a better balanced system, the XQ30 will be fine. If you're looking at older Reference, you'll need to be looking to change your amplification too in order to get the best from them.