Boulder 1008 Specifications

CONNECTING TO A BALANCED INPUT PREAMPLIFIERFor maximum sonic advantage, connect your 1008 Preamplifier’s balanced outputs to balanced inputs such as p

CONNECTING TO AN UNBALANCED INPUT PREAMPLIFIERA special cable is required to make this connection. This cable con-nects pin 1 to the shield and pin 2

CARTRIDGE SET UPPERSONALITY CARDEach 1008 input has two slots for personality cards, one for left, and one for right channels. The cards serve two fun

MOVING COIL OR MOVING MAGNET SELECTIONSet the switch to either Moving Coil (MC) or Moving Magnet (MM) depending on your type of cartridge. In the MC p

CARTRIDGE LOADING – RESISTIVEFor MC cartridges, the maximum resistive load is 1,000Ω. This is the value when there is no resistor added to the Persona

CARTRIDGE LOADING – CAPACITIVEThe 1008 Phono Preamplifier inputs have only “parasitic” capaci-tance of less than 50 pF directly across the cartridge i

OPERATIONPOWERING UPWith all your connections made, you are ready to listen to your Boulder 1008 Phono Preamplifier.Push on the “I” of the rocker swit

INPUT SELECTIONThe Boulder 1008 Phono Preamplifier provides inputs for 2 car-tridges. These can be from one or more turntables. Only one of these inpu

EQUALIZATIONThe Boulder 1008 Phono Preamplifier provides the standard RIAA record equalization curve, along with the EMI, Columbia, and FFRR curves. S

LOW CUT FILTERThe Boulder 1008 Phono Preamplifier uses a 3 pole (18 dB/octave) low cut filter which is -3db at 10 Hz.Because this filter is fairly ste

Boulder 1008Phono PreamplifierOwners ManualV1.0 10/20/2009Boulder Amplifiers, Inc.3235 Prairie Ave.Boulder, CO 80301www.boulderamp.comAPPENDIX REC

MUTEThe Boulder 1008 Phono Preamplifier provides an output mute fea-ture which is turned on by two different methods.First, the outputs are muted for

EQUALIZATIONEQUALIZATION CURVESThe Boulder 1008 Phono Preamplifier uses one of four equalization curves selected by the front panel pushbuttons labele

EQUALIZATION4-2RIAA REPRODUCE EQUALIZATIONREF 0 DB AT 1 KHZ

EQUALIZATION4-3FFRR REPRODUCE EQUALIZATIONREF 0 DB AT 1 KHZ

EQUALIZATION4-4EMI REPRODUCE EQUALIZATIONREF 0 DB AT 1 KHZ

EQUALIZATION4-5COLUMBIA REPRODUCE EQUALIZATIONREF 0 DB AT 1 KHZ

USING A RECORDERCONNECTIONSA recording device may be connected to the Boulder 1008 Phono Preamplifier. You may use balanced or unbalanced connections

1008 AUDIO BLOCK DIAGRAMLOW NOISE26 dB GAINFOR MC12PHONOINPUTSCARTRIDGELOADING ONPERSONALITYCARDMM BYPASSBALANCEDOUTPUTBUFFER10 HZ / 3-POLELO

APPENDIX6-2BOULDER 1008 PHONO PREAMPLIFIER SPECIFICATIONSInputs 2 Balanced, Converts to UnbalancedInput Impedance, Maximum MC: 1000 Ω; MM: 47kΩ1kHz

APPENDIX6-3TROUBLESHOOTINGSYMPTOM CAUSE REMEDYNo power indication on 1008Power switch is not in ON positionTurn on power switch1008 is not plugged inC

APPENDIX6-4TROUBLESHOOTINGSYMPTOM CAUSE REMEDYOne channel is louder than the other MM/MC switch is not set the same on both channelsSet MM/MC switches

APPENDIX6-5NOTESSerial Number ________

TABLE OF CONTENTSGETTING STARTEDPlacement of the 1008 Phono Preamplifier . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1

EQUALIZATIONEqualization Curves . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-1

GETTING STARTEDPLACEMENT OF THE 1008 PHONO PREAMPLIFIERYour Boulder 1008 Preamplifier is designed to reduce interference from external magnetic and ra

CONNECTING TO THE MAINS OUTLETYour 1008 Phono Preamplifier is supplied with a mains cord suit-able to the location where it was purchased. Make certai

CONNECTING TO A TURNTABLEBalanced inputs are provided for con-necting up to two turntables to the 1008. To avoid hum pickup in the cabling, it is impo

GETTINGSTARTED1-4PHONO CABLESCARTRIDGE1008 PHONO INPUTTURNTABLE CHASSIS3-POS INPUT2-POS INPUT1-POS INPUTCHASSISCARTRIDGE1008 PHONO INPUTTURNTABLE CHA