The 1.7 has a sensitivity of 86db/2.83v, however since it is 4 ohm, that is 83db/1 watt. If you are listening nearfield to elevator music at low volume, it should be fine. Now factor in a little more distance from the speaker, a little more volume, music with more dynamic range, and it is very likely the power needed on peaks will be more than 24 watts. IMHO, this combination should be avoided as there will be a risk of damage.
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