1-5GETTINGSTARTEDPOLARITYPlease note that the 850 Power Amplifier conforms to the standard of pin 2 as the high or hot pin for the balanced input.The

2-1OPERATIONPOWERING UPWith all your connections made, you are ready to listen to your Boulder 850 Power Amplifier.To turn the amplifier

2-2CLIP DETECTIONClipping of the waveform results when any amplifier is driven at too high a level. A clip detection circuit is incl

2-3SHORTED OUTPUT DETECTIONIf the output of the amplifier becomes shorted, the indicator will turn red and the amplifier will turn off the output stag

3-1REMOTE CONTROL OPERATIONOperation of the Boulder 850 Power Amplifier by remote control is possible when connected by a Boulderlink

4-1BOULDERLINK "DAISY CHAIN"TO ALLOTHERSLAVEUNITSBOULDERPRE-AMPLIFIERBOULDERPOWERAMPLIFIERBOULDERPOWERAMPLIFIERMASTER SLAVE SLAVEBOULDERLINK

4-2SETTING BOULDERLINK SWITCHESEvery Boulderlink system must have one “MASTER” component, and only one component can be set to MASTER.

4-3POWER UP VIA BOULDERLINKWith each component connected together with a Boulderlink cable, and individually connected to the mains, pressing t

4-4BOULDERLINK MESSAGESEach component in the system can send a message to the preamplifier which is then shown on its display. This

APPENDIX5-1BOULDER 850 POWER AMPLIFIER SPECIFICATIONSTHD at Continuous Power, 20 to 2KHz 0.0016%THD at Continuous Power, at 20KHz

Boulder 850200 WMono Power AmplifierOwners Manual11/25/05Boulder Amplifiers, Inc.3235 Prairie Ave.Boulder, CO 80301www.boulderamp.comAPPENDIXBOULDER L

APPENDIX5-2TROUBLESHOOTINGSYMPTOM CAUSE REMEDYNo power indication Power switch is not on Turn on power switchPower amplifier is not plugged in Connect

APPENDIX5-3NOTES

APPENDIXBOULDER LINKREMOTECONTROL OPERATIONGETTINGSTARTEDB o u l d e r 8 5 0 P o w e r A m p l i f i e r R e a r P a n e l

TABLE OF CONTENTSGETTING STARTEDPlacement of the 850 Power Amplifier. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

APPENDIXSpecifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-

1-1GETTINGSTARTED1-1GETTING STARTEDPLACEMENT OF THE 850 POWER AMPLIFIERYour Boulder 850 Power Amplifier is designed to reduce interference from exter

1-2GETTINGSTARTEDCONNECTING TO THE MAINS OUTLETYour 850 Power Amplifier is supplied with a mains cord suitable to the location where it was purchased.

1-3CONNECTING A BALANCED SOURCETo fully realize the sonic potential of your 850 Power Amplifier, use balanced connections whenever possi

1-4GETTINGSTARTEDCONNECTING AN UNBALANCED SOURCEAlthough the inputs are of the 3 pin type, an unbalanced source is easily accommodated by using a sp