Many AV receivers feature preamp outputs so you can power up your system with external amplification if your loudspeakers and listening habits demand more power than your AVR internal amplifiers are capable of providing. In this video, I help you understand the preamp output voltage, amplifier gain and input sensitivity specs so you can make an informed purchasing decision to ensure the best system compatibility and performance. A 3 step procedure is provided for calculating amplifier input sensitivity to determine if your AVR has sufficient voltage drive for your amplifier to produce maximum, undistorted, rated power.
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0:00 Introduction
1:04 Quick Answer on Preout Voltage
2:13 Step 1: Calculate Amplifier RMS Voltage
3:30 Step 2: Calculate |Av| of Amplifier
4:19 Step 3: Calculate Input Sensitivity
5:28 THX Gain Standard
6:41 Results
7:30 Amplifier Voltage Gain Table
14:34 Real World Scenario of Insufficient Preout
15:27 Preamp Output Ratings
22:38 Bottom Line on Specs
23:35 Bottom Line on Preout Voltage
24:52 Benchmark Gain Matching Livestream
25:19 RBH Subwoofer Giveaway!
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