Audio CD/DAC IN RCA (Left/Right) x 1 [3Vpp max.] Audio PC/iPod IN RCA (Left/Right) x 1 [0.55Vpp max.] what is the different of 3vpp and 0.55vpp? Can i use the out put rca and the headphone in the same time?

1. What is the different of 3vpp and 0.55vpp? Ans.: Audio CD/DAC [3Vpp max.] provides the normal CD input. The PC/iPod [0.55Vpp] is provided for small output iPhone/iPod/iPad or PC sound card. With the unique PC/iPod input with higher gain (6x) works with low output-voltage sources(like iPod or Desktop PC),making Trends PA-10 Tube Headphone/Pre Amplifier perfect for integrating iPhone/iPod or PC into your audio system. 2. Am i use the out put rca and the headphone in the same time? Yes !