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Pass Labs XA100 manual

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Table of contents for the manual

  • Page 1

    1 XA100 Owner’ s Manual pass TM XA100 Owner’ s Man ual May 18, 2006[...]

  • Page 2

    2 XA100 Owner’ s Manual Analog designer Nelson P ass has ov er the years produced some tr uly g reat solid-state amplifiers , each unique in it’ s own w ay . Not surprisingly , the P ass Laboratories ™ XA100 monoblock amplifier is no ex ce ption. The XA100’ s sleek industrial design is a stunning understatement of ar tistic for m integrated[...]

  • Page 3

    3 XA100 Owner’ s Manual The XA100 has a massive toroidal transformer coupled to a high cur rent DC reser voir . Recognizing that the XA100’ s ability to resolve microdynamics is best experienced with clean pow er, the extreme low-lev el resolution of the XA-series benefits from a specially designed pow er supply that significantly reduces and r[...]

  • Page 4

    4 XA100 Owner’ s Manual Several XA100’ s may be easily run in conjunction with other audio products on a single 15-amp circuit. This amplifier is equipped for operation with an ear th ground provided by the users A C outlet. Never defeat this ground connection. The signal g round of this amplifier is connected to earth through a power ther mist[...]

  • Page 5

    5 XA100 Owner’ s Manual are c har ged. The “P o we r” LED sho uld not be on. If t he “ P o we r” LED is on, do n ’ t ge t ex cite d, j ust use th e fr ont pan el stan d-b y butt on to go to sta nd- by mod e, wit h t he “ Sta ndb y” LED on and the “P ow er “ LED of f. OK, so the am plif ier is sit ting th ere in stan d-b y m ode [...]

  • Page 6

    6 XA100 Owner’ s Manual No w t hat the so urce co mpon ent is con nect ed, mak e sur e th ere is no sig nal com ing fro m i t, p roba bly b y tu rning the v olu me a ll the wa y do wn. With the speakers connected, mak e sure the pow er cord is attached and plug g ed into mains po wer; push the front panel button to activ ate the amplifier . The ?[...]

  • Page 7

    7 XA100 Owner’ s Manual Y ou may remotely operate the stand-b y mode by applying 12 volts DC to the single pair of 5 wa y connectors on the rear of the amplifier . The positiv e of the 12 v olts DC g oes to the red connector , negative to the blac k. T his connection has an actual operating range of about 9 volts to 15 v olts . This switching fea[...]

  • Page 8

    8 XA100 Owner’ s Manual Speaker cables should be fir mly tightened do wn at the speaker output ter minals , but not with a wrench. Output ter minals will not withstand the lev els of torque that may be easily applied b y wrench. Hand tightening without ex cessiv e force is plenty . Cleaning contact surfaces with one of the commercially av ailable[...]

  • Page 9

    9 XA100 Owner’ s Manual All figures obtained after 1 hour war m-up , with regulated 120 V A C pow er line. See man ual notes about A C power line regulation. Gain 26 dB Freq. R esponse -3 dB at 1.5 Hz, -3 dB at 100 kHz P ow er Output 100 watts max @ 1% THD , 1 kHz, 8 ohms Maximum Output V oltag e plus , minus appro x. 40 volts Maximum Output Curr[...]

  • Page 10

    10 XA100 Owner’ s Manual Please check with the factor y-authorized distributor in the countr y you are purchasing this product for specific w ar ranty infor mation. All P ass Laboratories products purchased from an authorized Pass Labora- tories dealer in Nor th America are covered b y a transferable, limited 3-year warranty . This w ar rantee in[...]

  • Page 11

    11 XA100 Owner’ s Manual W ater and moisture: Electrical devices should not be used near water ( as per example , near a bathtub , washbasin, kitc hen sink, laundr y tub , wet basement or swimming pool ). Care should be taken suc h that objects do not hav e the oppor tunity to fall, and that liquid is never spilled onto or into the device enclosu[...]

  • Page 12

    12 XA100 Owner’ s Manual Som eti mes tw o desi gns com ple ment eac h othe r so wel l th at you are surp ris ed whe n you le arn they w eren ’ t in ve nte d toget her . So it is wit h th e X Sup ers ymme tery™ amp lie r a nd the Alep h si ngl e-en ded Cl ass A out put ci rcui t. The Sup ers ymme tery™ “X” am pli er repe ated ly de[...]

  • Page 13

    13 XA100 Owner’ s Manual th ey va nish at the out put , ty pic ally b y a fac tor of 10 or so for mat ch ed sin gle -en ded Clas s A cir cui ts . Sup ers ymme try™ exte nds th is conc ept by us ing fe edba ck on ly to mak e th e dis torti on an d noi se more iden tic al on eac h h alf of a bal anc ed ci r- cu it, not to elim ina te it as suc h.[...]

  • Page 14

    14 XA100 Owner’ s Manual Th e a m pl i e r ha s o n ly th e t w o s ta ge s , a n i np u t s t ag e o f a ba l an c ed p ai r o f i np u t d ev i ce s , a nd th e o ut p u t s ta ge , a ba l a nc e d p ai r o f s i ng l e- e nd e d C la s s A po w er M os f et s . Li k e t he A l ep h™ , y ou c a n tr a ce a pa t h fr o m in p ut t o o ut p [...]