The L100 is pretty efficient. It's a 3-way bass reflex design and runs somewhere around 93 dB at 1 meter on axis with 1 watt input. Way back when, I used to sell these (among others) when I worked in an audio store.
As I recall, they did well with 50 watts/channel but sounded better with more. 125 per should do just fine.
Steve
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Outlaw 990/7500/LFM1+/2xLFM1 EX
Kef 107 with KUBE
Kef XQ2c center
Kef 3005 surrounds
Samsung HL-67a750
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