Stop the interface nightmare and start evaluating your clients music on your control room mointors, not on earbuds or a cell phone speaker. The PH1 500 Series module is all you need. Just patch the headphone output of the smartphone, laptop, or tablet into the PH1 input and you'll get a balanced stereo output with the correct impedance to match up to your monitor controller or console. Since it's in the 500 rack it's always connected and ready for a quick reference check.
Stereo level control
Smartphone or device input
Input cable 1/8" mini included
Male to Male XLR gender change for stereo output included