8 Ohm Speakers

I understand that speakers less than 8 ohms require more power and will overheat and possibly clip low powered amps. I also understand that my integrated amp runs 60 watts into 8 ohms and 100 into 4 and is not recommended power beyond that. But what are the consequences of driving say 10 or 14 ohm speakers? Is it just less work on the amp? Like the sensitivity, will it play speakers better at lower volume? This may be a naive question but its been ringing around in my head. Thanks in advance.