Solved! Scarlett 2i4 + Ext. Headphone Amp?

[FilipLav]

Hey, I already own a Scarlett 2i4 from Focusrite and I've been wanting to switch out my old half broken hd598s for some dt 990 pros. Can I hook up an ext. Headphone Amp to it and if so how would I go about doing so?

 

[americanaudiophile]

The 2i4 has 2 pairs of unbalanced RCA outputs and 1 pair of balanced audio outputs. You can connect the headphone amp to any of those.

 

[FilipLav]

The 2i4 has 2 pairs of unbalanced RCA outputs and 1 pair of balanced audio outputs. You can connect the headphone amp to any of those.

Thanks for the response! Do you know what the output impedance should be for 250ohm cans?

 

[americanaudiophile]

Do you mean the output impedance of the headphone amp? That's not the relevant spec.
You need to know that the amp has enough power with 250 cans to drive them. The spec for those is a max of 100mw at 250 ohms. You can use less but they won't play as loud. If you use 50mw you would lose 3db of max volume.