2. amps-preamps
  3. 162026-525

Sensitivity Ratings on Preamplifiers or Integrateds vs. Amplifiers

Ok, so I am interested in a better understanding of gain issues. As I understand it sensitivity values for an amplifier provide the voltage needed to achieve rated output. I am not sure about the sensitivity rating for preamps, thinking it serves as the minimum required to drive the preamp. In the case of an integrated I have seen this spec provided for the included preamp and amplifier stages.  However for many it is not.

Specifically for my Line Magnetic 211ai it is specified as 200mV and I assume this is for the preamp stage.  This seems low and may be why, when driven by my DAC having 2V output, I need not turn the volume past 10 o'clock for sufficient loudness. I understand the volume position is no measure of the wattage one is asking the amplifier stage to deliver. 

I am seeking clarification /correction on my thinking. Thanks in advance!
mesch

Showing 1 response by yogiboy

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yogiboy
5,845 posts
 
@mesch
Your thinking is correct. The input sensitivity of that Line Magnetic is on the low side. Since you don’t have a volume adjustment on the DAC you can always add a schitt SYS if you want to use the volume control in the higher range on the Line Magnetic!
https://www.schiit.com/products/sys
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