| Subject: | 1. Re: SD702 vs Tascam DR680 Blind Test |
|---|---|
| From: | "Paul Jacobson" thebrunswicktwitcher |
| Date: | Sun Aug 22, 2010 2:15 pm ((PDT)) |
On 21/08/2010, at 3:18 PM, Rob Danielson wrote: > Hi Paul-- > > I don't have a rms multimeter or scope. These are the file saturations I= get: > > Pink Noise- > NT2000 -> Mix Pre at Full Gain -> Balanced Line Out/In > @ Unity -> 744T =3D -3.3 dB RMS Hi Rob, By unity I'm assuming 0dB indicated gain? This means you need a 0dB input = to register -20dBFS, so effectively the input would require roughly +20dB t= o 0dBFS. In other words you are attenuating the input by around 20dB. With= full gain on the Mix Pre this would mean you are recording with 66dB gain,= plus 20dB attenuation, giving an overall gain of 46dB. > > Pink Noise- > NT2000 -> 744T at Full gain =3D -.66 dB RMS The 2.64dB difference you are seeing is very close to the 2dB you'd expect= with the SD specified gain for the preamps i.e. 48dB. cheers Paul > > I haven't heard from Emil yet about the DR680 gain setting he used. Rob D= . > > |
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