I recently received an IcePower 2000AS1 from Audiophonics. Doing some testing today, I found that the ZA3 has a higher gain than the 2000AS1, even though the 2000AS1 is spec'd at 29.7dB of gain, and the ZA3 is 26dB of gain (spec and tested by Amir). The 2000AS1 should be 3.7dB louder than the...