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Listen SC Amp, User Manual

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Listen SC Amp User Manual Download Page 25

 Block Diagram

SC Amp

TM

 Manual

 19

Block Diagram

+/-

DC Input

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Current Recovery Amp

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10

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High

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Amp

DC Input

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On

Off

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Summary of Contents for SC Amp

Page 1: ...eb www listeninc com Sales sales listeninc com Support support listeninc com Listen Inc 580 Harrison Ave Suite 3W Boston MA 02118 Tel 617 556 4104 Fax 617 556 4145 Web www listeninc com Sales sales li...

Page 2: ...REV 051217...

Page 3: ...nd Symbol erkl rungen 7 Informaci n de Seguridad y S mbolos 9 Introduction 11 Features 11 Front Panel 11 Rear Panel 12 Operation 13 Over Temperature Standby 13 Thermal Shutdown 13 Short Circuit Monito...

Page 4: ...ii Contents SC AmpTM Manual Page Intentionally Left Blank...

Page 5: ...use of handling of the Products against defects or damages arising from improper installation where installation is by persons other than Manufacturer against defects in products or components not man...

Page 6: ...iv SC AmpTM Manual Limited Warranty Page Intentionally Left Blank...

Page 7: ...purpose of the grounding type plug This apparatus should be connected to a receptacle with a protective earthing or ground connection 11 Protect the power cord from being walked on or pinched particu...

Page 8: ...terminals are inadvertently short circuited zWhen the product is operated at or near the maximum rated output power of 35 W at a duty cycle exceeding 25 z When the product is operated at ambient tempe...

Page 9: ...ikke sikkerheden ved stikket til jordforbindelse Denne enhed skal forbindes til en beholder med en intakt beskyttelsesleder eller jord forbindelse 11 Beskyt netledningen mod at blive tr dt p eller kle...

Page 10: ...g medf re sikkerhedsrisici Brug kun str mforsyninger leveret af eller godkendt af Listen Inc ADVARSEL Power Out stikket p bagpanelet er beregnet til at forsyne visse Listen Inc produkter og periferiud...

Page 11: ...t doit demeurer op rationnel en tout temps apr s l installation 10 Ne modifiez pas les fins de s curit de la fiche de type mise la terre Cet appareil doit tre branch une prise avec une connexion de mi...

Page 12: ...t CA autre peut endommager le produit et pr senter des dangers de s curit Utilisez seulement des adaptateurs de courant fournis par ou approuv s par Listen Inc AVERTISSEMENT Le connecteur de l aliment...

Page 13: ...darf nur an eine Steckdose mit Schutzerdung oder Masse angeschlossen werden 11 Das Netzkabel muss so gesch tzt werden dass niemand auf das Kabel treten kann und dass es nicht gequetscht werden kann D...

Page 14: ...rrufen Verwenden Sie nur Netzteile die von Listen Inc geliefert oder zugelassen wurden VORSICHT Der r ckseitige Ausgang Netzanschluss ist f r die Stromversorgung bestimmter Listen Inc Produkte und Per...

Page 15: ...dad del enchufe conectado a tierra Este aparato se debe conectar a un recept culo con una conexi n a tierra que sirva de protecci n 11 Proteja el cable de alimentaci n para que nadie lo pise ni quede...

Page 16: ...rovistos o aprobados por Listen Inc PRECAUCI N El conector de salida de tensi n que se encuentra en el tablero trasero sirve para alimentar determinados productos y perif ricos de Listen Inc dise ados...

Page 17: ...ting overload and high temperature conditions z SC Amp integrates seamlessly with Listen s SoundCheck audio test and measurement software and will also work well with other brands of test system z Fou...

Page 18: ...input z Any voltage on this input up to 3 5 V will cause the output to be offset by the same amount z Low frequency AC signals 5 Hz can also be applied to this connector Line In Power amplifier audio...

Page 19: ...to cool down for several minutes before turning on again If this does not reset the unit disconnect AC power from the power brick for several minutes and then try again Short Circuit Monitoring The ou...

Page 20: ...to one amplifier output reduces the impedance of the load e g 8 Ohms in parallel with 8 Ohms equals 4 Ohms SC_Amp s performance will vary with loads below 4 Ohms Impedance Measurement When using SC A...

Page 21: ...t to the differential output of the Impedance Interface Output which is essential for the correct operation of this circuit For BNC Device Output The BNC output can be connected to a 1 4 Tip Sleeve ma...

Page 22: ...Output 1 is connected to the Line In of SC Amp z A DC Connect Stimulus Step in a test sequence controls DC Connect to send a 1 VDC signal to SC Amp z The sine sweep stimulus from the SoundCheck seque...

Page 23: ...voltage Vp p of SC Amp Figure 7 8 shows a 2 VDC Offset applied which reduces the maximum potential output signal 0 V Positive Voltage Limit Vp p Max output voltage before clipping Negative Voltage Lim...

Page 24: ...18 SC AmpTM Manual Operation Page Intentionally Left Blank...

Page 25: ...ram SC AmpTM Manual 19 Block Diagram DC Input Zin 1M Limiter Low Pass Filter Level Indicator Output Current Recovery Amp 0 1V A Output Line In Zin 48k GND Lift 50 10nF High Pass Filter Power Amp DC In...

Page 26: ...20 SC AmpTM Manual Block Diagram Page Intentionally Left Blank...

Page 27: ...nloaded Fixed at 26 4 dB 0 1 dB Cooling Rear heatsink DC Input Input Connector Isolated BNC Impedance 1 M DC Gain Factor Unity DC Offset Range 3 5 V Maximum offset current to load 1 A Step Function Ri...

Page 28: ...22 SC AmpTM Manual Specifications Page Intentionally Left Blank...

Page 29: ...ltages listed on the supplied or approved AC power adapter z Transient Overvoltages up to the levels of Overvoltage Category II as required in the relevant standards listed on the Declaration of Confo...

Page 30: ...T kV R M U U L V K M W L J n Q N T U J M R IV N J K X V J O o M R S K M N N V J O X Z J p n jM N q V R M K K T N S V R L Y r 8 s t e A u B v i w x G u B v x M R S K T R m T N jO kV X Z X Z J m T L L...

Page 31: ...alified in the service of electronic instrumentation attempt repair Contact Information Contact the Listen office at 617 556 4104 Monday thru Friday between 9 AM and 5 PM EST Sales sales listeninc com...

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