Apple Mac Pro (Early 2008) - Manual (Page 92)

92 Chapter 5 What’s Under the Hood
Analog Audio Specifications
 Sample rate: 44.1 kHz, 48 kHz, or 96 kHz
 Jack type: 1/8” mini
 Bits per sample: 16-bit or 24-bit
 Frequency response: 20 Hz to 20 kHz, +0.5 dB/-3 dB
Analog audio out using the headphone jack (typical values)
Based on a typical situation with playback of 1 kHz, -3dBFS 24-bit sine wave, 44.1 kHz
output sample rate into 150 ohms unless otherwise specified below.
 Output voltage: 1.4 volts (root mean square) (V
rms
) (+5.1 dBu)
 Output impedance: 24 ohms
 Output power: 90 milliwatts (mW)
 Signal-to-noise ratio: Greater than 90 dB
 Total harmonic distortion + noise: Less than -75 dB (.02 percent)
 Channel separation: Greater than 50 dB
Analog audio line in (typical values)
Based on a typical situation with playback of 1 kHz, -3dBFS 24-bit sine wave, 44.1 kHz
output sample rate unless otherwise specified below.
 Maximum input voltage: 2 V
rms
(+8.2 dBu)
 Input impedance: Greater than 20 kilohms
 Signal-to-noise ratio: Greater than 90 dB
 Total harmonic distortion + noise: Less than -85 dB (.006 percent)
 Channel separation: Greater than 80 dB