Spendors SP-100 R.....anybody heard them ?

It depends upon the rest of your system, your room and your listening preferences, but if it were me, I'd go with the Spendors. They won't image/soundstage like the Avalons, but they'll play louder, go deeper and vocals will sound more natural. You should also consider the bigger Harbeths. The larger the room, the more I would tilt towards the Spendors.

...my mistake, the rest of the system is Rowland - model 112 amp , synergy IIi pre-amp, DCS on the front end. Cabeling is Shunyata Orion speaker and Anatares interconnects ...with Pursit 20th anniversary contego power cords....

garebear....the spendors are great speakers, but i suspect you are going through an 'i'm bored' phase, which we all do. no amount of money spent cures this for long. i do think your speakers are among the finest available, and the rowland gear is more than up to driving them in spectacular fashion. you could go with a nice push pull tube amp for a bit of variety(keep the rowland), and spend less than on the Spendors. I go between mac and revox and back all the time just to mix things up.