2. amps-preamps
  3. 1292448094

Int. Amp's input sensitivity and DAC's output

Hi,

I'm a little confused (concerned) about the match between my Cambridge Audio DACMagic and my integrated amp. The DACMagic's output is rated at 2.1V rms (unbalanced). My integrated's line input's sensitivity is rated >= 200mV and overload signal level rated >=2V. Now I'm concerned that the DAC is actually driving the pre-amp section of the integrated to overloading levels.

Is this a correct analogy or am I mistaken?

Comments appreciated.
livin_262002

Showing 3 responses by marakanetz

marakanetz's avatar
marakanetz
5,473 posts
 
In your case preamp is acting as linear volume control. There are lots of positive things unless the input circuit isn't overdriven(which is less-likely your case) that gives enough headroom to pick up all possible details at the small signal domain and properly process it to the desired volume.
The tech specification and features of your preamp might also have maximum input voltage which may go upto 9V.
marakanetz's avatar
marakanetz
5,473 posts
 
You will be able to realize that it's clipping in the small signal domain when you play some dynamic music. If that's the case, you can get attenuators(normally resistors) with RCA plugs between DAC and preamp.
I believe it shouldn't if both components are RMS votage rated. The input sensitivity of 200mV means how 'quiet' your preamp can play and overload level 2V is the other way arround.
marakanetz's avatar
marakanetz
5,473 posts
 
I would purchase attenuators with RCA plugs that would possibly increase ranges on your volume knob and dynanic headroom of the system.
They're available at partsexpress.com.
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