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11

(A) MAIN IN 

These terminals allow a connected external (A) amplifier to play through to 
the 

SPEAKERS OUT 1 & 2

 output terminals in the absence of a trigger to the 

internal (B) amp of the BB50-S. This allows A/B amplifier switching based on 
conditional triggering of the BB50-S.

(B) SPEAKERS IN 

For use of these terminals, please refer to 

page 7

.  

OPERATING MULTIPLE SPEAKERS

Multiple pairs of speakers can be connected directly to the amplifier's 

SPEAKERS OUT 1 & 2

 outputs 

(refer to Diagram 13)

 as long as the total 

impedance presented to the amplifier does not drop below 4ohms. If excessive 
demands are placed on the amplifier, the protection circuitry may be engaged, 
temporarily shutting it down. 

When speakers are connected directly to the amplifier, they will all play at   
the same time. If you wish to control speaker pairs independently of each 
other, we recommend that you use one of SpeakerCraft's multi-room speaker 
selectors. Depending on the model, up to eight pairs of speakers can be 
turned on or off independently of each other, while providing protection for 
your amplifier at the same time. Your SpeakerCraft dealer can provide you 
with details on the selectors available.

POWER

3-PRONG REMOVABLE POWER PLUG

Plug the female end of the AC cord supplied with the BB50-S into the IEC-Type 
receptacle on the rear panel of the amplifier. 

(See Diagram 2)

 Insert the plug 

directly into a 120V AC / 60Hz wall outlet.

CAUTION:

 

Do not plug the amplifier into a preamplifier’s or receiver’s 

switched or unswitched outlet. If you wish to have the amplifier turn on 
once a preamplifier or a receiver is activated, use the “AUDIO ON” trigger 
mode selection. (Refer to Diagram 9)

120V AC OUTLET

This is an AC current sensing AC Outlet. It is NOT turned On or Off by the 
front panel POWER switch. Use this outlet to sense the AC current of an AC 
powered appliance or device for triggering purposes. 

Refer to Diagrams 9 

and 11 and related text for details.

Summary of Contents for Big Bang BB50-S

Page 1: ...Big Bang Power Amplifiers B B 5 0 S O w n e r s M a n u a l...

Page 2: ...aning The appliance should be cleaned only as recommended by the manufacturer 13 Nonuse Periods The power cord of the appliance should be unplugged from the outlet when left unused for a long period o...

Page 3: ...agrams 1 2 on pages 4 5 to familiarize your self with the functions and features of the BB50 S TABLE OF CONTENTS Front Panel Diagram 4 Rear Panel Diagram 5 Installation Considerations 6 Inputs and Out...

Page 4: ...al Main Amp A is playing if connected to rear panel A Main IN connector and Internal Amp B is off B LED Indicates Internal Amp B is Triggered ON and External Main Amp A is OFF These adjustments set De...

Page 5: ...r Line Switch 12V DC Out goes High with any Trigger 3 Prong IEC Type AC Inlet for Removable Power Plug Line Level Inputs Line Level Outputs Loop Video Trigger IN Trigger ON OFF Selectors for Audio Vid...

Page 6: ...per ventilation such as tight cabinets or racks it may be necessary to install small fans to create air movement DON T Obstruct the ventilation holes on the top or bottom of the BB50 S Never place it...

Page 7: ...rminal from its location on the back of the cabinet will make it easier to connect the wires 2 Connect the wires from the amplifier s or receiver s speaker outputs to the B SPEAKERS IN Direct Connecto...

Page 8: ...s follows VIDEO IN OUT Jacks The Video IN jack is provided for Video triggering purposes only Use it whenever you wish to have the BB50 S trigger ON and OFF with the power ing ON and OFF of a Video so...

Page 9: ...the SENS CW a little at a time until it does Next rotate the DELAY CW until you find a place where the BB50 S does not shut OFF and ON too frequently with low music levels or during track and disc ch...

Page 10: ...See Diagram 12 CAUTION Be sure the external triggered device does not draw more than 100mA total Diagram 11 120V AC OUTLET Trigger Input Diagram 12 DC 12V 100mA Trigger Output SPEAKER TERMINALS Four...

Page 11: ...ou use one of SpeakerCraft s multi room speaker selectors Depending on the model up to eight pairs of speakers can be turned on or off independently of each other while providing protection for your a...

Page 12: ...S will be Off B LED When lit the B LED indicates that the internal B amp of the BB50 S is triggered ON An external Main Amplifier A if connected through the A MAIN IN connector on the rear panel will...

Page 13: ...may include faulty cables Amplifier will not turn on The amplifier must be plugged into a live outlet The power switch on the front panel must be on One of the TRIGGER inputs must be switched ON and t...

Page 14: ...ers IN Sens Full CCW 35mV Line IN 470mV B Speakers IN Delay Full CW 21 2 Minutes Delay Full CCW 3 Seconds Video Trigger Triggers ON OFF with presence or absence of composite video 12V DC AC Control IN...

Page 15: ...such modification All replaced parts and product become the property of SpeakerCraft Inc Products replaced or repaired under this warranty will be returned to the original retail purchaser within a r...

Page 16: ...LIT02053 940 Columbia Avenue Riverside CA 92507 800 448 0976 Fax 951 787 8747 www speakercraft com...

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