Sound Performance Lab 2711 manual Measurements

Page 19

 

 

 

 

 

 

 

 

 

Measurements

Sound Performance Lab

 

 

CMRR

 

 

08/20/07 13:48:31

 

-50

 

 

 

 

 

 

 

 

 

 

 

-60

 

 

 

 

 

 

 

 

 

 

d

-70

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

B

 

 

 

 

 

 

 

 

 

 

 

u

-80

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

-90

 

 

 

 

 

 

 

 

 

 

 

-100

 

 

 

 

 

 

 

 

 

 

 

10

20

50

100

200

500

1k

2k

5k

10k

20k

 

 

 

 

 

 

Hz

 

 

 

 

 

CMRR with -30dBu input level and vu = 30dB black = input -> output 1

grey = input -> output 2

CMRR -30dB.at27

Sound Performance Lab Frequency Response / THD+N 08/20/07 12:13:27 ratio

 

+3

 

 

 

 

 

 

 

 

 

 

 

0.2

 

 

+2

 

 

 

 

 

 

 

 

 

 

 

0.175

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

0.15

 

 

+1

 

 

 

 

 

 

 

 

 

 

 

0.125

 

d

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

B

+0

 

 

 

 

 

 

 

 

 

 

 

0.1

%

u

 

 

 

 

 

 

 

 

 

 

 

 

0.075

 

 

-1

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

0.05

 

 

-2

 

 

 

 

 

 

 

 

 

 

 

0.025

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

-3

 

 

 

 

 

 

 

 

 

 

 

 

 

 

10

20

50

100

200

500

1k

2k

5k

10k

20k

50k

200k

 

 

 

 

 

 

 

 

 

Hz

 

 

 

 

 

 

Frequency Response and THD + N ratio with -30dBu input level and vu = 30dB black = frequency response

grey = THD + N ratio

Freq Resp + THD.at27

RackPack: Preference Mic Pre

19

Image 19
Contents Preference Mic Pre Model Manual Preference Mic PreContents Important Security Information Important Security Information Hook Up Fitting a Module Symbols And NotesScope Of Delivery Introduction Main Features%8 Rear Panel/Connections$VF.JY Channel Split XLR SocketsMic Gain Control ElementsAbout Leveling 10dB VU MeterPad Phantom Power SupplyHigh-Pass Filter Signal LEDOverload LED SSM TechnologyServo Drive Design Outputs Foil And Styroflex CapacitorsCopy Master Recall Settings Block Diagram Audio SpecificationsMeasurements Guarantee, Product Registration Guarantee