30
SPX2000
2-3. Checking ANALOG INPUT/OUTPUT Level
Select Switch
Condition:
Signals are inputted through ANALOG INPUT L, R
(PHONE) and output from ANALOG OUTPUT L, R
(PHONE).
The level select switch should be set to -10dBu side (both
input and output) and WORD CLOCK INT should be
set to 48kHz.
[1] Gain (both L and R)
2-4. Checking DIGITAL OUT
Condition: Use the System Two.
Signals are inputted through ANALOG INPUT L, R
(XLR) and output from AES/EBU OUT.
a. WORD CLOCK INT 96kHz
Condition: Set WORD CLOCK INT to 96kHz.
Input frequency
Input level Specified output level Permissible range
1 kHz
-10 dBu
0 dBu
0±2 dBu
Input level Specified output level Permissible range
-10±2 dBFS
[2] Frequency response (AES/EBU OUT)
1kHz is used as reference of the permissible range.
[3] Distortion ratio (AES/EBU OUT)
20 Hz
+4 dBu
-1.0〜+0.5 dB
40 kHz
+4 dBu
-1.0〜+0.5 dB
2-5. Checking DIGITAL IN
Condition: Use the System Two.
Signals are inputted through AES/EBU IN and output
from ANALOG OUT L, R (XLR).
Select AES/EBU for the word clock.
Setting: Input selection
Press the UTILITY key and when "INPUT SOURCE"
appears on the LCD, press the INC key.
Setting is completed when the asterisk (*) mark moves
to the "DIGITAL" position.
Press the BACK key and execute WORD CLOCK
selection.
a. 96kHz
Condition: Make frequency setting (Sample Rate) of the
System Two to 96kHz.
[1] Gain (both L and R)
[2] Frequency response (both L and R)
Condition:
1kHz is used as reference of the permissible range.
[3] Distortion ratio (both L and R)
b. 48kHz
Condition: Make frequency setting (Sample Rate) of the
System Two to 48kHz.
[1] Distortion ratio (both L and R)
Input frequency
Output level
Permissible range
1 kHz
-1 dBFS
0.01 % or below
Input frequency
Output level
Permissible range
1 kHz
-1 dBFS
0.02 % or below
Input frequency
Input level Specified output level Permissible range
1 kHz
-10 dBFS
+14 dBu
+14±2 dBu
Input frequency
Input level
Permissible range
20 Hz
-10 dBFS
-1.0〜+0.5 dB
40 kHz
-10 dBFS
-1.0〜+0.5 dB
Input frequency
Output level
Permissible range
1 kHz
+22 dBu
0.01 % or below
Input frequency
Output level
Permissible range
1 kHz
+23 dBu
0.02 % or below
[1] Distortion ratio (both L and R)
Permissible range
-80 dBu or below
b. WORD CLOCK INT 48kHz
Condition: Set WORD CLOCK INT to 48kHz.
[1] Distortion ratio (AES/EBU OUT)
Input frequency
Output level
Permissible range
1 kHz
+23 dBu
0.02 % or below
[2] Residual noise (both L and R)
Condition: The input function should be turned off.
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