Manuals / Harman-Kardon / Home Audio / Stereo Amplifier

Harman-Kardon GB4 Typical Specifications, Noise, Crosstalk @1kHz, typical, Frequency Response

Models: GB4

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TYPICAL SPECIFICATIONS

Noise
Measured RMS, 22Hz to 22kHz Bandwidth
Mic E.I.N. @ unity gain,150Ω source impedance	-128dBu
Mix Output, 40 inputs routed to mix	<-82dBu
Group Outputs	<-83dBu
Aux Outputs	<-80dBu
Matrix Outputs	<-89dBu
Crosstalk (@1kHz, typical)
Input Channel Mute	<-97dB
Input Fader cut-off	<-95dB
Pan isolation	<-77dB
Mix route isolation	<-97dB
Group route isolation	<-97dB
Adjacent channel crosstalk	<-99dB
Group to Mix	<-89dB
Aux Send pots offness (typical)	<-84dB
Matrix Send pots offness (typical)	<-89dB
Frequency Response
Mic/Line Input to any output, 20Hz - 20kHz	<1dB
THD + N
Mic sens. -30dBu, +20dBu at all outputs @1kHz	<0.006%
CMRR
Typical @ 1kHz	80dB
Input & Output Max Levels
Mono & Stereo Mic Inputs	+15dBu
Mono & Stereo Line Inputs	+30dBu
Stereo Returns & Insert Returns	+20dBu
Any output	+20dBu
Nominal Operating Level	0dBu
Headphone Power	2x250mW into 200Ω
Input & Output Impedances	2kΩ
Mic Inputs	2kΩ
Line Inputs and Stereo Returns	10kΩ
Input channels Insert Return	5kΩ with EQ in, otherwise 3kΩ
Mix, Group, Aux, Matrix & Direct outputs	150Ω
Insert sends	75Ω
Recommended Headphone Impedance	50 - 600Ω

GB4 User Guide

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Harman-Kardon GB4 manual Typical Specifications, Noise, Crosstalk @1kHz, typical, Frequency Response, Thd + N, Cmrr

Contents

GB4 User Guide GB4 User GuideGB4 User Guide Please read this manual carefully before usingyour mixer for the first time Using The Console ContentsInstallation Block DiagramsGB4 User Guide This Class A digital apparatus meets the requirements of the Canadian Interference-CausingEquipment RegulationsGB4 User Guide IntroductionGB4 User Guide Key FeaturesGB4 User Guide WarrantyGB4 User Guide SAFETY SYMBOL GUIDE InstallationIMPORTANT SAFETY WARNINGS GB4 User Guide WARNINGSSignal Levels Mains InstallationGeneral Precautions Power CableGB4 User Guide Initial Wiring ConsiderationsAudio Wiring ShieldingGB4 User Guide WORKING SAFELY WITH SOUNDPoints to Remember Initial set-up Setting Up & TroubleshootingTroubleshooting No PowerNo Mix output Optional External Power SupplyMeters not showing any signal Headphones DistortingGB4 User Guide Audio Connector PinoutsGB4 User Guide DimensionsGB4 User Guide Block Diagrams20 GB4 User Guide Mono InputGB4 User Guide Stereo InputGB4 User Guide Talkback and Stereo ReturnsGB4 User Guide Group/Aux/Matrix OutputsGB4 User Guide Master SectionGB4 User Guide Using The ConsoleGB4 User Guide Mono InputMIC INPUT 3 pin female XLR Rear ConnectorsGB4 User Guide INSERT 1/4 TRS JackGB4 User Guide Stereo InputGB4 User Guide Rear ConnectorsGB4 User Guide AUX MASTERS Master SectionGROUPS AUX MASTERSMaster Mutes L, R & C OutputsREC/ALT Outputs Monitoring & PFLPSU Monitor LEDs Rear Connector PanelTalkback Stereo ReturnsGB4 User Guide Frequency Response TYPICAL SPECIFICATIONSNoise Crosstalk @1kHz, typicalGB4 User Guide GB4 User Guide Mark-upSheetsGB4 User Guide CENTRE GB4 User GuideSTE1 STE2GB4 User Guide