Vocopro DTX-9909K Benutzerhandbuch
9
NO
Test item
Test condition
Unit
Technology requirement
1
Input Sensitivity
Input 1KHz signal, output 8
Ω load，distortion＝1%
mV
L/R/C/SL/SR/SBL/SBR=200～
250
2
Overload electromotive force
Input 1KHz signal, output 8
Ω load，distortion＝1%
V
≥
2
3
Output V/ W of distortion
limit
Input 1KHz signal, output 8
Ω load，distortion＝1%
V
≥
28
4
CH gain
Input 1KHz signal, output 8
Ω load
dB
≤1
5
Frequency response
Input 1KHz signal, output 8
Ω load
1W，
all the tune
at middle point for reference，test frequency range:
20Hz～20Khz,
dB
≤1
6
CH separated ratio
Separated input 1KHz and 10KHz signal, Output
8
Ω load
dB
1K≥55、 10K≥50
7
DVD/VIDEO CH cross talk
Separated input 1KHz and 10KHz signal, output
8
Ω load
dB
1K≥65、 10K≥55
8
Tone range
Input 1KHz signal, Output 8
Ω load 1W，all the tune
at middle point for reference，Test frequency
range: 100Hz～10Khz, test at 100Hz and 10KHz
range: 100Hz～10Khz, test at 100Hz and 10KHz
dB
±
8(±2)
19
Damp coefficient
Under Working condition,，8Ωmono work，100Hz
＞
100
20
S/N
Rating output as parameter
dB
S/N≥75， A weight≥82
21
excess noise
No signal input,，Use 600Ωresistance short circuit
input，OUT 8
Ω
mV
≤3
22
Mic input sensitivity
Input 1KHz signal, Output 8
Ω load，distortion＝1%
mV
＝
15±5
23
MIC Overload electromotive
force
Input 1KHz signal, Output 8
Ω load，distortion＝1%
mV
≥
250
24
Tone range
Input 1KHz signal, Output 8
Ω load1W，all the tune
at middle point for reference ,test at 100Hz and
10KHz
10KHz
dB
±
10(±2)
25
MIC Frequency response
Input 1KHz signal, Output 8
Ω load
1W，
all the
tune at middle point for reference, test frequency
range: 30Hz～10Khz
dB
≤1
26
MIC（S/N）
Rating output as reference value
dB
S/N≥60 ，A weight≥65
27
Excess noise
OUT 8
Ω No signal input, short circuit input
mV
≤15
32
SW input sensitivity
Input 100Hz signal, distortion＝1%，7.1 Input
mV
≤360
33
SW linear input Overload
electromotive force
Input frequency 100Hz，7.1 Input
V
≥
3.5
34
SW linear Max output voltage
Input 100Hz signal, distortion＝1%，7.1 Input
V
≥
3
35
Headphone max output
Input 1KHz signal, Output 32
Ω load，distortion＝
1%
V
≥
1
36
REC Max output without
distortion
Input 1KHz signal, Output 10K load，distortion＝
1%
V
≥
1.5
37
Video frequency test
Input 6.5MHz/1Vpp, Output 75
Ω load
mV
Output＝900～950mVpp
Specification
MIN
TYP
MAX
603KHz
－
60
74
999KHz
－
56
72
39
AM
26dB limit noise
sensitivity
1404KHz
dBu
－
56
72
Technical Specifi cations