Digital Audio and Amplifier Noise Floor Comparison - Is 16bit/44.1kHz All We Need ???

[Panelhead]

  I plan on rerunning analysis on my current amp. Noise floor on My_Ref Evo Rev A does not quite match AHB2. But slaughters most of the expensive amps I have seen tested in Stereophile. Many have a baseline and power supply artifacts 20 dB higher. 

  Since changing to high efficiency horns I am using a similar design with much lower gain. Hope to get test setup running soon. 

  Plus want to test at 10 mW, 100 mW, and 1 watt. With 105 dB 3 way horns and an active sub,  100 mW is very loud. The 5 and 18 watt output RTA plots are not representative of normal operation.

  You can build your own. 

[psjug]

13 hours ago, Panelhead said:

  This is a measurement performed with an AP analyzer on my amp. It is dead quiet connected to 105 dB efficient Klipsch La Scala II speakers. 

Noise.pdf 1.1 MB · 10 downloads

That is an interesting amplifier (I read the google translated http://www.webalice.it/mauro.penasa/Relazione_MY_REF.html).  Do you know if there is a bridged version?

[The Computer Audiophile]

15 hours ago, Ralf11 said:

 

what's with the personal attacks, twinkie?

 

14 hours ago, sandyk said:

 

 Work it out for yourself Muffy from your posted reaction to my posted measurement.

Get over it and stop acting like children on the school yard.