My father got two Genelecs 8030As monitors and a ProAV2 Stereo DI box from a friend, I'm wondering if it would be safe to plug my laptop's Headphone out into the DI box, and then plug the DI box into the speakers, or if I'd need a mixer or something as to not ruin my laptop output, or ruin the speakers. Some easy to understand guide on how this works would be nice too.