Thd+N Vs. Frequency - Benchmark PRE420 Instruction Manual

THD+N vs. Frequency

Measurement Bandwidth = 10Hz to 80 kHz, Gain = 30 to 60 dB, Output Level = +4 dBu
Audio Precision
-80
-82
-84
-86
-88
-90
-92
-94
-96
-98
d
-100
B
-102
-104
-106
-108
-110
-112
-114
-116
-118
-120
20 50
Sweep Trace Color
1 1 Red
2 1 Magenta
3 1 Blue
4 1 Green
This graph shows that THD+N does not rise with frequency – even at maximum gain.
PRE420 Instruction Manual – rev. E
PRE420 - THD+N vs Frequency at 60 dB Gain, BW=80 kHz
100 200 500
Line Style Thick Data
Solid 4 Anlr.THD+N Ratio
Solid 4 Anlr.THD+N Ratio
Solid 4 Anlr.THD+N Ratio
Solid 4 Anlr.THD+N Ratio
1k 2k 5k
Hz
Axis Comment
Left 60 dB Gain (top trace)
Left 50 dB Gain
Left 40 dB Gain
Left 30 dB Gain (bottom trace)
02/21/07 09:56:41
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0.01
0.005
0.002
0.001
%
0.0005
0.0002
0.0001
80k