Manuale d’uso / di manutenzione del prodotto X350 del fabbricante Pass Labs
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P age 1 Pass Laboratories Owner's Manual X1000 / X600 / X350.
P age 2 Now For Something Completely Diff erent: The X Seri es are th e bigg est and most pow erful ampl ifiers w e have cr eated, but they are no t unique for that r eason. We hav e chosen t he biggest a nd mos t power ful as the pro per templ e for a new concept in high per forma nce audio ampli fication.
P age 3 Setup First off, let’ s be cl ear abou t one thing . These amplifi ers are v ery heav y. In the c ase o f an X1000, w e strongly sugg est that you g et four, n ot two, peo ple to h elp you l ift it. Yeah, m aybe two people c ould do it, b ut if you g et hurt, don’ t say y ou weren’ t war ned.
P age 4 the front panel stand- by but ton to go to stand- by mod e, with the meter light o ff and the meter parked to t he le ft. OK, so the a mplifier i s sitting there in stand-by mode w ith just t he sing le blue l ed lit. N o speaker con nected y et.
P age 5 of our a mplifiers i s almost non-ex istent. This is smal l comfort t o the few, but t ake it easy and give us a cal l if y ou hav e probl ems. Now that th e chann els are up and runni ng, w e can tak e a moment to not e a few things. The meter l ights are bl ue, subtl e lig hting i n daylig ht, a little more dr amatic a t night.
P age 6 9 volts to 1 5 volts. This swi tching is independen t of th e front p anel but ton, so i f the ampli fier is placed in operating mode by the button, the relay will not turn it o ff, only on. So much for essenti al in for matio n. Speaker Interface The X Seri es is opti miz ed for loa ds nominal ly r ated at 4 ohms and above.
P age 7 and the en ergy reserv e held in the c apacitors will do its job. As a practical matter, it will not make a lo t of di fference. Jus t don’t c all us u p and c omplain tha t you onl y measur ed 1900 watts in y our living room. I f you do, w e’ll want to k now w hat speakers can take it.
P age 8 Fun Hardware Facts The X100 0 has two pow er transformers, r ated at 1500 w atts each, con tinuous duty at 85 degrees centig rade. Under actu al conditions in the a mplifier, they will do about 2000 w atts continuously each, and at le ast hal f again mor e than tha t for s hort durati ons.
P age 9 boards i n the ampli f ier ar e doubl e sided, w ith plated throug h holes and d ouble thickn ess of copper. So how long will this hard ware last? It is my experience tha t, barring abuse or the odd failure of a componen t, the first things to go w ill be the pow er supply capacitors, and fro m experience, they w ill last 15 t o 20 years.
P age 10 Supersy mmetr y: What it is, Where it came fro m, Ho w it works, Why bother ( theory and philos ophy you can ski p ) Supersym metry is the name g iven to a new type of a mplifyi ng circui t, whic h operates quite different ly than t he desig ns pres ently app earing in liter ature and the mar ketpl ace.
P age 11 nature of the device. So I will state here and no w that I c onsider “n o feedback” to be where feedback does not extend further than a singl e gain device or stage, s o that circui ts hav ing “local feedback” are still consi dered “no feedback”.
P age 12 sink in it. N ow I str ive to be li ke Pic asso, who c ould draw a woman with a si ngle penci l stroke and create a master piece. Supersym metry is not a singl e pencil stroke, but I am making progress.
P age 13 feedback w ith a Sup ersymmetr ic conn ection an other 20 dB or so. This is easily accomplishe d with onl y one g ain stage ins tead of the mul tiple stag es required by conventi onal desig n, and so it results i n only one “pole” of hig h freque ncy character istic, and is unc onditi onally stable without com pensation.
P age 14 People inev itably w ill ask how thi s relates to bridg ed ampli f iers in g eneral , and th e balanc ed amplifier o fferings of oth er companies . It is similar o nly in that both termin als of the ou tput to the speak er are “l ive” ; neither of them is ground ed.
P age 15 On this cur ve (B) we can clear ly see tha t intrinsic sy mmetry due to t he matchi ng of th e two halves r educes th e distorti on by a factor o f 10. Super symmetr y (D ) creates a more per fect match, a nd results i n an ad dition al reduc tion by a factor o f 10.
P age 16 X1000 CUR VES.
P age 17 X600 CUR VES.
P age 18 X350 CUR VES.
P age 19 X1000 SPECIFICA TIONS All figur es obtai ned after 1 hour w a rmup, with reg ulated 12 0 VAC pow er line. See m anual notes ab out AC p ower l ine reg ulation.
P age 20 X600 SPECIFICA TIONS All figur es obtai ned after 1 hour w a rmup, with reg ulated 12 0 VAC pow er line. See m anual notes ab out AC p ower l ine reg ulation.
P age 21 X350 SPECIFICA TIONS All figur es obtai ned after 1 hour w a rmup, with reg ulated 12 0 VAC pow er line. See m anual notes ab out AC p ower l ine reg ulation.
Un punto importante, dopo l’acquisto del dispositivo (o anche prima di acquisto) è quello di leggere il manuale. Dobbiamo farlo per diversi motivi semplici:
Se non hai ancora comprato il Pass Labs X350 è un buon momento per familiarizzare con i dati di base del prodotto. Prime consultare le pagine iniziali del manuale d’uso, che si trova al di sopra. Dovresti trovare lì i dati tecnici più importanti del Pass Labs X350 - in questo modo è possibile verificare se l’apparecchio soddisfa le tue esigenze. Esplorando le pagine segenti del manuali d’uso Pass Labs X350 imparerai tutte le caratteristiche del prodotto e le informazioni sul suo funzionamento. Le informazioni sul Pass Labs X350 ti aiuteranno sicuramente a prendere una decisione relativa all’acquisto.
In una situazione in cui hai già il Pass Labs X350, ma non hai ancora letto il manuale d’uso, dovresti farlo per le ragioni sopra descritte. Saprai quindi se hai correttamente usato le funzioni disponibili, e se hai commesso errori che possono ridurre la durata di vita del Pass Labs X350.
Tuttavia, uno dei ruoli più importanti per l’utente svolti dal manuale d’uso è quello di aiutare a risolvere i problemi con il Pass Labs X350. Quasi sempre, ci troverai Troubleshooting, cioè i guasti più frequenti e malfunzionamenti del dispositivo Pass Labs X350 insieme con le istruzioni su come risolverli. Anche se non si riesci a risolvere il problema, il manuale d’uso ti mostrerà il percorso di ulteriori procedimenti – il contatto con il centro servizio clienti o il servizio più vicino.
