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 Important Safety Information

SC Amp

TM

 Manual

 1

IMPORTANT SAFETY PRECAUTIONS AND SYMBOL EXPLANATIONS

SC Amp has been supplied in safe operating condition.
This User’s Manual contains information and warnings that should be followed by the user to 
ensure safe and service free operation. Special note should be made of the following:
1. Read these instructions

2. Keep these instructions

3. Heed all warnings

4. Follow all instructions

5. WARNING: To prevent fire or electric shock, do not expose this equipment to rain or 

moisture. Do not use this apparatus near water.

6. Clean only with a dry cloth. Do not use spray or liquid cleaning solutions. 

7. Airflow around the heat sink must remain unobstructed during use. Do not block or cover 

the heat sink. Install in accordance with the manufacturer’s instructions.

8. Do not install near any heat sources such as radiators, heat registers, stoves, or other 

apparatus (including amplifiers) that produce heat.

9. The appliance coupler is the AC mains disconnect and should remain readily operable 

after installation.

10. Do not defeat the safety 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, particularly at plugs, 

convenience receptacles, and the point where they exit from the apparatus.

12. Use only attachments/accessories specified by Listen, Inc.

13. Use only with hardware, brackets, stands, and components sold with the apparatus or by 

Listen, Inc.

14. Unplug the apparatus during lightning storms or when unused for long periods of time.

15. Whenever it is likely that the correct functioning or operating safety of the apparatus has 

been impaired, the apparatus must be made inoperative and be secured against 
unintended operation. Any adjustment, maintenance and repair of the open apparatus, 
under power, must be avoided as far as possible and, if unavoidable, must be carried out 
only by trained service personnel. Servicing is required when the apparatus has been 
damaged in any way, such as power supply cord or plug is damaged, liquid has been 
spilled or objects have fallen into the apparatus, the apparatus has been exposed to rain 
or moisture, does not operate normally, or has been dropped.

Important Safety Information

Important Safety Precautions And Symbol Explanations

Содержание SC Amp

Страница 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...

Страница 2: ...REV 051217...

Страница 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...

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

Страница 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...

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

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

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

Страница 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...

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

Страница 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...

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

Страница 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...

Страница 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...

Страница 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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