Hi folks, recently I acquired a DAC-1. I couldn't figure out to send the signal from a 3.5mm to Coax input. But the problem is when I connected an optical output from my TV to DAC-1, and 2 rca output from DAC-1 to my amplifier (tried it on monoprice hybride and marantz 1060), both produced high white noise with some crackling and no music, and I set the volume to very low. Do you think my source is incorrect or there is something wrong with this DAC unit? I tested both of amplifiers, both are working fine. Thanks.