There are many advantages to using aluminum, titanium and other rigid metals in speaker design. In the case of Paradigm speakers they use S-PAL™ satin-anodize pure aluminum dome. That process or design if you will “softens” or takes the edge off in my opinion. I do not own Paradigm 100 V.3's but have listen to them extensively over the last several years. I have heard them with Parasound, Denon, Rotel and B&K equipment. I never once experienced harshness. In my opinion the Paradigms are anything but harsh. I suspect that the Outlaw amp would be a nice match.
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Outlaw 990/7125; Parasound HCA 1500A; Samsung LN52B630; OPPO-BDP-83 Blueray
Belkin PureAV PF60; B&W 604S3 Mains; B&W LCR600 S3 Center; B&W 600S3 LS, RS, LB, RB
Outlaw LFM-1 Compact Subwoofer; Boston Voyager 3 (Outdoor zone 2); Harmony One