Instruction/ maintenance manual of the product 2485 Sound Performance Lab
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Model 2485 Manual Gol dM ike Mk 2 Dual- channel microphone and instrument preamplif ier 48 V Clip Limit AD OVL 2 S o u n d P e r f o r m a n c e L a b VU 7 5 3 1 0 3 5 0 30 50 70 % 20 10 100 Gold Mike Mark 2 Model 2485 Dual Channel Microphone, Line & Instrument Preamplifier -26 6 -10 -12 -14 -18 -16 -20 -22 -24 -25 -9 -8 -6 -5 -2.
2 GoldM ike MK2 Manual GoldMike MK2 Model 2485 Versio n 1. 2 – 12/ 20 05 De sign er: Rube n Til g ner Th is use r's guid e cont ains a des cr iptio n of the pr oduc t. It in no way represent s a guarantee of par ticular charac teristic s or res ult s of us e.
GoldM ike MK2 3 Intro duction ................................................................... 4 Before Y ou Begin ............................................................ 5 Rear Pan el/Conne ct ion s ...........................................
4 GoldM ike MK2 Introduction Th e Gold Mike MK 2 is th e resul t of all our e x per ience a nd kn owle dge f rom i ts s ucces sf ul pred eces sor an d repre sen ts a n improved, more f lex ible a nd, more modern version.
GoldM ike MK2 5 Before Y ou Begin IMPO RTANT : Bef ore yo u oper ate your G old Mike MK 2, f i rs t che ck c aref ull y whe ther t he lo cal vol tag e set t ing cor re spon ds to the s wi tch se t tin.
6 GoldM ike MK2 R ear Panel/Connections Wiring RETURN SERIAL NUMBER GoldMike 2 4860000 Sound Performance Lab XLR Wiring : Pin 1 = GND, Pin 2 = (+), Pin 3 = (–) TRS Jack W iring : T ip = (+), Ring = .
GoldM ike MK2 7 A g ain, w hile t he Gol dMike MK 2’s hou sing is E MV-pr oof an d prote ct s ag ains t HF- inter f erence , place ment of t he unit is ve r y imp or tan t since i t ampl if ie s micro phon e sign al s as we ll as ot her unwa nted sig nal s.
8 GoldM ike MK2 R ear Panel/Connections Mic I nput 1 / 2 Dy nami c, co nden ser or t ube mi croph one s can b e conne c ted to the M ic inpu ts . Th e 48 V s wi tch pro vide s the p hantom p ower nec ess ar y f or som e micr opho nes (s ee al s o „Cont rol El emen ts/ P h an t om “ o n p a g e 1 1 ).
GoldM ike MK2 9 Output s 1 / 2 Th e pream plif i er sig nal s are f ed to th ese e lec tr onic ally b alan ced out put s. A lter nat ive ly the G old Mike MK 2 c an be eq uippe d wit h opt ionall y av ailab le tr ans for mer o utp ut s fr om Lun dahl (s ee “ L u nd a hl Tr an s f or m er s ” on p a ge 2 2) .
10 GoldM ike MK2 Power Y ou g ues sed t hat : wit h the P ower s witc h the G oldM ike MK 2 is ac ti va ted, ve rif ied b y the ill uminat ing sw itch . Plea s e read “B efor e Y o u Beg in” on pag e 5 bef ore th rowing i n for th e f ir st time. Gain Th e Gain con tro l deter min es th e pre -ampl if ic atio n of the mi cro - pho ne sig nal.
GoldM ike MK2 11 Outp ut Th is poten tiom eter ad jus ts t he ou tput l evel f or dev ice s fol lowi ng in the c hain or to t he con ver ter. The O utp ut Le vel c on tr ol a ll o w s a n ad d it i o n a l +6 d B of a mp l i fic at i o n o r - 2 6 d B of reduc ti on.
12 GoldM ike MK2 Phas e Th e pha se re vers e f unc tion r ever ses t he po lar it y of the m icro - pho ne sig nal , inver ting t he pha se ( by 18 0 °) to co rr ec t pha se - inve r ted signals ca used by multip le si gnal sou rces.
GoldM ike MK2 13 Flai r A s wi th it s pr edec ess or, the mod el 98 4 4 Gold Mike, t he Gol dMike MK 2 fea tures ou r sound -o ptimi zing F lair ci rcuit r y. T his circ uitr y take s adv ant age of a com bine d coil and t ube f ilter ing to enhance signal presence.
14 GoldM ike MK2 Usi ng the T ube Am p switch Eng ag ing the Tube Am p sw itch ten ds to hav e a sign if ic ant im pac t on the overall sound , as it direct ly changes the sonic charac ter of the t ube . The h ighe r the T ub e Amp v alue, t he mo re you wi ll have tube sat uration and har monic distor tion, in addition to limi ting ef f ec t s.
GoldM ike MK2 15 Limit er Th e Gold Mike MK 2 of f ers a pe ak limi ter that o per ates b efor e the o utp ut lev el cont rol . Thi s ensure s tha t the li mited s ign al can be co ntr olle d as p er fe c tly a s pos sibl e for t he inte rn al—or an ex ternal—conver ter .
16 GoldM ike MK2 VU-C al Th e displ ay rang e of the V U mete r can b e shif te d usin g the -1 0dB VU C al s witc h posi tion . If th e VU C al s witc h is set to i t s 0 dB p osit ion and t he ou tput lev el cont rol is al s o set to 0 dB w ith th e limi ter sw itch ed of f, the o utp ut lev el will e f fe ct iv ely be 0 dBu .
GoldM ike MK2 17 Display / 48 V LE D Th e 48V- LE D indic ate s that t he pha ntom pow er supp ly is ac ti - va ted. T he 48 V-L ED will sl owly d im bef ore go ing out to in dica te tha t it take s som e time f or resi dual cur rent to di sch arge.
18 GoldM ike MK2 Solid stat e and tube sta ges Th e soli d st age pr eamp se c tion is b as ed on a f ull y dis crete , bal anced i nst rum ent ampl if ier a nd ope rate s 12 sing le tr ansi s- tors i n cla ss A mo de. A s ophis tic ated c ircuit r y en sures a n earl y constant f requenc y response at any gain level .
GoldM ike MK2 19 Class A Instrument In put Th e Ins tr umen t Input i s a ful ly dis cre te impe dance c onver ter tha t al so ope rate s in cl as s A mode . It is ba se d on a low -no ise f iel d ef f ec t tr ansis tor tha t, due to i ts e x tr emely h igh inp ut imp e- d an c e , i s e s p e c ia l ly w el l su i te d to t hi s t a s k .
20 GoldM ike MK2 In th e ca se of t he pow er suppl y, no ex pen se w as sp ared . Af ter all , the p ower sup ply is on e of the p rima r y f acto rs in th e audio quali t y and ov erall s ound of a ny dev ice.
GoldM ike MK2 21 • 2 4-B it/96 kH z A/D con ver ter ( upg rad es af ter s ale ca n be don e by clients). • Lun dahl in put an d outp ut tr ans for mer s (up gr ade s af ter s ale by auth ori zed se r vi ce per sonne l or SPL onl y).
22 GoldM ike MK2 Sy nc Inp u t The S YN C input allows you to feed an e xter nal sign al into the c onver ter to con trol t he s ample r ate (si nce th is is an A D conv er ter, the S YN C Input is n o audio sig nal in put) . Conne ct an S/P-DI F outp ut f rom your m as ter source ( e.
GoldM ike MK2 23 Freq uenc y resp ons e ‹10 H z to 90 K Hz ( - 3 dB ) Input impedance s Mic ropho ne, X LR 2, 8 KOhm Li ne In, T RS 10 KOhm Instr. In TR S 1 MOhm Outp ut impedances XL R and TRS conn.
24 GoldM ike MK2 SPL p roduc t s are gu aran teed f or a per iod of o ne year ag ain st f ault s in mater ial s or wor km anship. Ref er to your l ocal s upplie r for f ul l sale s and g uar ante e term s.
GoldM ike MK2 25 Notes ............................................................... ............................................................... ............................................................... ....................................
Manual GoldMike MK2 Model 2485 Rediscover Analog at soun dper for mancelab.com.
An important point after buying a device Sound Performance Lab 2485 (or even before the purchase) is to read its user manual. We should do this for several simple reasons:
If you have not bought Sound Performance Lab 2485 yet, this is a good time to familiarize yourself with the basic data on the product. First of all view first pages of the manual, you can find above. You should find there the most important technical data Sound Performance Lab 2485 - thus you can check whether the hardware meets your expectations. When delving into next pages of the user manual, Sound Performance Lab 2485 you will learn all the available features of the product, as well as information on its operation. The information that you get Sound Performance Lab 2485 will certainly help you make a decision on the purchase.
If you already are a holder of Sound Performance Lab 2485, but have not read the manual yet, you should do it for the reasons described above. You will learn then if you properly used the available features, and whether you have not made any mistakes, which can shorten the lifetime Sound Performance Lab 2485.
However, one of the most important roles played by the user manual is to help in solving problems with Sound Performance Lab 2485. Almost always you will find there Troubleshooting, which are the most frequently occurring failures and malfunctions of the device Sound Performance Lab 2485 along with tips on how to solve them. Even if you fail to solve the problem, the manual will show you a further procedure – contact to the customer service center or the nearest service center
