2. amps-preamps
  3. 168140-16768

Total System Gain Question

I am considering an amp with 25dB of gain and 575mV input sensitivity for rated minimum output, and considering a preamp with 18dB of gain. So total system gain would be 43dB. My speakers are 88dB efficient.

Is too much gain for a 2V line level DAC source? I don’t know what the input sensitivity of the preamp is. I worry I’ll be stuck in the bottom (non-linear) portion of the volume pot due to the total gain ...

I don’t have a feel for this since I’d been using an integrated amp forever.
greg7

Showing 1 response by deer_creek_audio

deer_creek_audio's avatar
deer_creek_audio
63 posts
 
Here’s a link to an app note that overviews the basics of audio system gain structure. Its focus is somewhat around miniDSP, but the concepts definitely apply to analog systems with multiple gain stages. Check it out!

https://www.minidsp.com/applications/dsp-basics/gain-structure-101


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