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Sound Specifications

The frequency response of the sound circuits, not including the microphone and speakers, is within plus or minus 1 dB from 4 Hz to 20 kHz.

Total harmonic distortion plus noise (THD+N) as a percentage of full scale for various outputs are shown in Table 3-3 .

Table 3-3 Distortion specifications


Connector and level

Total harmonic distortion
and noise

Line input 0.03%
Line output 0.03%
Headphone jack, open circuit 0.03%
Headphone jack, 32-ohm headphones,
-20 dBFS level
0.1%
Headphone jack, 32-ohm headphones,
-1.5 dBFS level
1.0%

The signal-to-noise ratios (SNR) for various inputs and outputs are shown in Table 3-4 . The values shown are unweighted; values with A weighting would be about 8 dB higher.

Table 3-4 Noise specifications


Connector and level

Signal-to-noise ratio

Line output 92 dB
Headphone jacks 86 dB
Line input 85 dB
Internal CD 82 dB

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