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AUDIO SIGNAL PROCESSING
MP3-USB Mini Hi Fi System with Digital Tuner , 3 CDC-MP3,(Main:2×350W+Rear:2×150W+SUB:2x300W) Universal Class D Power Amplifier
1 )
DSC ( Digital Sound Control )
Select AUX as input source with the following set conditions:
Inject sine wave 500mV at 1 KHz to L/R channels of AUX-IN socket.
Set DSC to JAZZ(Flat) mode and switch off DBB.
Refence level for DSC's without DBB on=1W.
Refence level for DSC'S with DBB on=1.2V at the speaker terminal .
Inject sine wave 500mV-2.4V to AUX-IN socket with frequencies indicated in Table 1.
For FWM998 Subwoofer in put 500mW 60HZ @ 3R (Main computer )
Tabel 1a ( Tolerance ± 3dB )
Frequency
60 Hz (SUB)
1K((SUB)
1 kHz (host computer)
10 kHz(host computer)
Tabel 1b ( Tolerance ± 3dB )
Frequency
60 Hz (SUB)
1khz(SUB)
1 kHz (host computer)
10 kHz (host computer)
Tabel 1b ( Tolerance ± 3dB )
Frequency
60 Hz (SUB)
1 kHz(SUB)
1khz (host computer)
10 kHz (host computer)
Tabel 1b ( Tolerance ± 3dB )
Frequency
0 6
H
z
S (
U
) B
1khz(SUB)
1 kHz(host computer)
10 kHz(host computer)
2 )
DBB ( Dynamic Bass Boot )
Select AUX as input source with the following set conditions :
Inject sine wave 500mV at 1kHz to L/R channels of AUX - IN socket.
Set DSC to JAZZ(Flat) mode and switch off DBB,
Reference level for the test is 500mW on the speaker terminals.
Tabel 2 of FWM998( Tolerance ± 3dB )
Frequency
60 Hz(SUB)
1 Hz(SUB)
1khz(host computer)
10K Hz(host computer)
Class No
FWM9000 All Version
NAME : Andy Lai
KT
CHECK
1 - 8
DSC Modes with DBB Off
JAZZ
POP
0
4
0
0
0
0
0
2
DSC Modes with DBB 1 ON
JAZZ
POP
4
8
0
0
0
0
0
2
DSC Modes with DBB 2 ON
JAZZ
POP
10
16
0
0
0
0
0
4
DSC Modes with DBB 3 ON
JAZZ
POP
16
20
0
0
0
0
2
6
DBB OFF
DBB 1
0
4
0
0
0
0
0
0
GENERAL PART 1 - GENERAL SPECICFICATION
10
10
DATE :
TECHNO
OPTIMAL
6
0
0
-4
TECHNO
OPTIMAL
8
0
0
-4
TECHNO
OPTIMAL
16
0
0
2 -
TECHNO
OPTIMAL
0 2
0
0
0
DBB 2
DBB 3
8
0
0
0
SH 190 - 5
2
0
0
2
6
0
0
2
13
0
0
2
20
0
0
4
12
0
0
2
Ver
Issued Date
1
08-09-2011
2
3
A4
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