VocoPro DTX-9909K owner manual Technical Specifi cations, Test condition, Excess noise

Technical Specifi cations

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

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