Headphone out to active monitors

[EFM88]

Hello,

I'm looking to buy a digital piano, Yamaha YDP143. It doesn't have line outs, which would be ideal, but it does have 2 headphone outs. I understand the impedances would be unmatched and the monitors would see a different voltage than expected (~0.5V).

Would there be a noticeable degradation in sound quality and possible damage to the equipment? Can I just vary the output volume on the headphone preamp and adjust the volumes on the monitors accordingly? Can you guys think of any glaringly awful outcomes?

Thanks a lot for any help.

 

[gvl]

Should work just fine. Set the volume to minimum on both the piano and the monitors initially and then gradually increase on both to find useful levels/range.

Looks like this piano can send out Midi over USB, just an uneducated thought but you might be able to utilize a USB midi interface that has proper line-level outputs, but probably this is more what you need.