THD test
On PC:
-Load file:
alfaverb_THD (APWin File menu / Open / Test )
Test Connections:
-
Output A of Audio Precision System Two --> LEFT input of the device under test.
On the
Alphaverb
:
-Turn on the power switch.
-Set INPUT volume to maximum.
-Set OUTPUT volume to maximum.
-Set PROGRAM to
DELAY
.
-Set VARIATION to 1.
Start the sweep (F9) and control the results (Page3 – Graph) in the following conditions:
-LEFT output of the device under test --> A input of Audio Precision System Two / MIX
potentiometer turned to 10
-RIGHT output of the device under test --> B input of Audio Precision System Two / MIX
potentiometer turned to 10
Audio Precision
05/22/02 13:06:12
alfaverb_THD.at2c
Color
Line Style
Thick
Data
Axis
Cyan
Solid
2
Anlr.THD+N Ratio
Left
0.1
1
0.2
0.3
0.4
0.5
0.6
0.7
0.8
0.9
%
20
6k
50
100
200
500
1k
2k
Hz
Summary of Contents for Verb
Page 1: ...Service Manual www altoproaudio com Version 1 1 Model αVERB 24x32 BIT DIGITAL EFFECTS ...
Page 7: ...BOTTOM SOLDER MASK BOTTOM LAYER ...
Page 8: ...TOP SILKSCREEN BOTTOM SILKSCREEN ...
Page 10: ......
Page 11: ......
Page 26: ......
