I am wanting to retrun my new Pioneer for a double din receiver. The Avic d2 has caught my eye and soniceletronix is having a great deal on it. However, the preamps out voltage is only 2volts. I was looking at all the DD in my price range and they all seem to have 2V. Is this going to be a big deal? I am using a very clean amp, Zed Audio Draconia, should I get something else?