An excellent integrated amplifier!
100 wpc, so you have many choices. Most of us would recommend vintage or newer speaker systems, not necessarily new. Best bang for your hard-earned dollar.
Infinity made some downright great speaker systems (but NOT the SM-series, ugh). I had a pair of the Qb, a 10-inch, 3-way with the excellent EMIT tweeter. If they had been the Q Jr, 12-inch, 3-way, I would still have them.
With your budget you could consider the Renaissance or Kappa models, but be aware that the top models are a bear to drive, and 100 wpc may not be enough.
Me? Well I like the Pioneer HPM-900 I have, and the succeeding model S-1010 is even better sounding. Oh, yeah, I would love a pair of the HPM-200, a rare model, and inefficient, so 100 wpc would only be good for moderate listening levels. (The HPM-900 are 92.5 dB/w/m and will shiver your timbers.)
With your budget, consider also Tannoy and IMF.
Hmmm, I should mention the Carver Amazing loudspeakers. Any of the Carver Amazings would do me, and I will say a pair would put an end to my speaker hunting. I remember listening to the first Carver Amazing, and yes it was!
Couple of years ago I met Toasted Almond out in Jersey, and heard his Amazing Platinums (IV, I think) and they were stunning. 4 12-inch subwoofers crossing over at 100 Hz to a full-range 60" ribbon.