SHUM_Records, Меня лично забавляет несколько другой случай:
http://www.m-audio.com/products/en_us/FastTrackUltra8R.htmlСогласно спецификациям на сайте (Specification):
Mic Inputs (A/D)
Input Impedance 1.6k ohms unbalanced, 3.2k ohms balanced
Maximum Input Level from +28dBu @ min gain (with pad) to -45dBu @ max gain (no pad)
Channel-to-Channel Crosstalk < -110dB
SNR (min gain, no pad) -106dB, A-weighted
Dynamic Range (min gain, no pad) 106dB, A-weighted
THD+N (min gain, no pad) 0.0028% (-91dB) @ -1dBFS, 1kHz
Frequency Response 20Hz to 20kHz, +/- 0.1dB
Preamp Gain >53dB, no pad
Pad -20dB pad
Instrument Inputs (A/D)
Input Impedance 1M ohm, unbalanced
Maximum Input Level from +12dBV @ min gain (no pad) to -41dBV @ max gain (no pad)
SNR (min gain, no pad) -107dB, A-weighted
Dynamic Range (min gain, no pad) 107dB, A-weighted
THD+N (min gain, no pad) 0.003% (-90dB) @ -1dBFS, 1kHz
Frequency Response 20Hz to 20kHz, +/- 0.1dB @ 48kHz sample rate
Preamp Gain > 53dB
Pad -20dB pad
Line Inputs (A/D)
Input Impedance 18k ohms, balanced / 9k ohms, unbalanced
Maximum Input Level +20.2dBu balanced/unbalanced
Channel-to-Channel Crosstalk < -110dB
SNR -106dB, A-weighted
Dynamic Range 106dB, A-weighted
THD+N 0.003% (-90dB) @ -1dBFS, 1kHz
Frequency Response 20Hz to 20kHz, +/- 0.1dB
Input Inserts (analog)
Maximum Level Send +2.2dBV, unbalanced
Maximum Level Return +2.2dBV, unbalanced
THD+N 0.0022% (-93dB) @ -1dB from max level, 1kHz
Frequency Response 20Hz to 20kHz, +/- 0.1dB
Line Outputs (D/A)
Output Impedance 470 ohms, unbalanced / 940 ohms, balanced
Maximum Output Level +20dBu, balanced
+11.8dBV, unbalanced
Channel-to-Channel Crosstalk < -110dB
SNR -104dB, A-weighted
Dynamic Range 104dB, A-weighted
THD+N 0.0025% (-92dB) @ -1 dBFS, 1kHz
Frequency Response 20Hz to 20kHz, +/- 0.1dB
Headphone Output (D/A)
Max Output Level into 32 Ohms +2.8dBV at THD < 0.003% into 32 ohms
Power into Ohms 60 mW into 32 ohms
Channel-to-Channel Crosstalk < -85dB
SNR -104dB, A-weighted
Dynamic Range 104dB, A-weighted
Frequency Response 20Hz to 20kHz, +/- 0.1dB
Working Range 24 to 600 ohms
Из мануала:
Line Outputs
Frequency response: 20 Hz to 22 kHz, +/- 0.1 dB @ 48 kHz sample rate
SNR and Dynamic Range: -104 dB, A-weighted
THD+N: 0.002%@ -1dBFS, 1kHz
Signal Level: +10 dBu balanced
+2 dBV, unbalanced
Impedance: 300 Ohm balanced/150 Ohm unbalanced
150 Ohm unbalanced
Crosstalk: < -100 dB @ 1 kHz
Line Inputs
Frequency response: 20 Hz to 22 kHz, +/- 0.3 dB @ 48 kHz sample rate
SNR and Dynamic Range: -103 dB, A-weighted
THD+N: 0.002% @ -1dBFS, 1kHz
Signal Level: +3.4 dBu balanced
+1.2 dBV, unbalanced
Impedance: 20K Ohm balanced
10K Ohm unbalanced
Crosstalk: < -100 dB @ 1 kHz
Headphone Outputs
Frequency response: 20 Hz to 22 kHz, +/- 0.7 dB @ 48 kHz sample rate
SNR and Dynamic Range: 96 dB, A-weighted
THD+N: < 0.065% at maximum volume
Working Range: 24 to 600 ohms
Maximum Output Level 0dbv into 32ohms
Crosstalk: < -65 dB @ 1 kHz
Microphone Input
Pre-amp Gain: 0dB to 60dB or greater.
SNR (min gain): -103 dB, A-weighted
Dynamic Range (min gain): 103 dB, A-weighted
THD+N (min gain): 0.003% @ -1dBFS
Freq. Response (min gain): 20 Hz to 22 kHz, +/- 0.1 dB @ 48 kHz sample rate
Sensitivity: +1dBu max level at min input
Phantom Power 48 Volts DC @ 16mA
Instrument Input
Pre-amp Gain: 0dB to 40dB or greater
Impedance 1M Ohm unbalanced
SNR (min gain): -103 dB, A-weighted
Dynamic Range (min gain): 103 dB, A-weighted
THD+N (min gain): 0.005% (-92.3 dB) @ -1 dBFS, 1 kHz
Freq. Response (min gain): 20 Hz to 22 kHz, +/- 0.3 dB @ 48 kHz sample rate
Maximum Input 14dbv
Хрен с ним с отдельными показателями сигнал/шум, но вот то что разные спеки выходного уровня (+20 dbu и +10 dbu) заставляет чесать репу - чему верить? Промахнуться на 10 db это сильно...
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