
MICRO PREAMP
Precautions
PLE ASE R EAD CA REFU LLY BEF ORE PR OCEE DIN G
Pow er Su pply
Please c onne ct the d esi gnat ed AC adapte r to an AC ou tlet of the c orre ct vol tag e. 
Please b e sure t o use on ly an AC a dapt er whi ch su ppli es 9V DC,        ,ce nter 
negati ve. Un plug t he AC po wer ad apter whe n not in u se or du rin g elec tric al st orms . 
Con nec tion s
Always t urn of f the po wer an d all o ther e quip men t befo re con nec ting o r 
discon nect ing. T his wi ll he lp pre vent malf unct ion an d dam age to a ny of th e dev ices . 
Make sur e to unp lug all con nect ion ca ble s and po wer co rds b efor e movi ng th is uni t. 
To avoid def orma tion, dis colo rati on, o r othe r seri ous d amag e, 
do not exp ose th is uni t to th e foll owin g con diti ons: 
  Dir ect s unli ght                    
  Mag net ic fie lds                    
  Exc ess ivel y dust y or di rty lo cati on    
  Str ong v ibra tion o r sho ck
Int erf eren ce wit h oth er ele ctri cal d evic es and C lea ning
Radios a nd tel evision s plac ed nearby m ay exp erience r ecep tion inte rfer ence . 
Ope rat e this u nit at a s uit able d ista nce f rom ra dios a nd te levi sion s. 
Clean on ly wit h a soft, dry c loth . 
Handli ng
Do not app ly exc essi ve fo rce to t he swi tch es or co ntro ls. 
Do not let p aper, m etal , or ot her ob ject s int o this u nit. 
Take care no t to dro p the un it, a nd do no t subj ect i t to sho ck or ex ces sive p ress ure . 
FCC c ert ific atio n
Thi s dev ice co mpli es wi th Par t 15 of th e FCC R ules . Oper ati on is su bjec t 
to th e fol lowi ng two c ond itio ns: 
  T his de vice m ay no t caus e harm ful i nter fere nce . 
  This devi ce must acce pt any interfer ence receiv ed, including inter ference 
  tha t may c ause u ndes ire d oper atio n.
Heat sou rces 
Ext rem e temp erat ure o r humi dity 
High hum idit y or moistu re
Overview
The se mi cro pr eamp s are s onic ally a ccu rate d igit al re crea tion s of th e prea mp 
sectio ns of po pula r tub e amps . We hav e deve lop ed the se by di rec tly an alyz ing 
real tub e ampl ifie rs us ing a br and ne w tec hnol ogy to c apt ure th eir so und , 
dynami cs and r espo nse . Plea se ens ure t o use a cl ean 9v p owe r supp ly and a h igh 
qualit y powe r amp to g et th e best r esul ts. E ach Mi cro Pr eam p come s comp let e 
with dua l chan nels, int egra ted sp eak er cab inet s imu lati on and d ual o pera ting 
modes to s uit th e need s of al l user s.
Pedal layout
01
1. DCIN 
DC9V
06
05
07
CH/C AB
03
08
7.LED BU TTON
  Pre ss on ce to sw itch b etw een ch anne l A/B (B lue/ Red) 
  Pre ss an d hold f or 2 sec ond s to swi tch Ca b sim ulat ion on /off 
  Whe n Cab s imul atio n is ac tive t he LED B UTTO N wil l flas h
8.F OOT SWIT CH
  The f oots wit ch has 2 m odes o f ope rati on
    1.Tog gles th e pream p on/of f
    2.S witch b etwee n chann el A/B (Th e micro p reamp w ill be pe rmane ntly on i n mode 2)
To change fo otsw itch m ode , pres s and ho ld th e foot swit ch fo r two se cond s. 
The L ED BU TTON w ill fl ash tw ice t o conf irm th e mod e has ch ange d. 
Note: All E Q, gai n and v olum e sett ing s will b e auto mat ical ly sto red s epar atel y for 
each cha nnel .
Connec t a DC 9V 22 0mA centre p in 
negati ve pow er supply
2.I npu t
Connec t inst rume nt
3.Outp ut
Connec t to pow er amp o r effe cts r etur n
4.T RE, M ID, BA SS
02
Sta nda rd ton e stac k. Wh en all 3 o f thes e 
contro ls are a t 12 o'c loc k the pr eamp i s 
closes t to the o rigi nal a mpli fier w e 
analyz ed. Cl ockw ise w ill bo ost 
04
fre que ncie s and co unt ercl ockw ise w ill 
cut them . The fr eque ncie s whi ch the E Q 
contro ls adj ust, v ary d epen ding o n the 
preamp m odel .
5.GAIN
Adjust s the in put ga in
6.V OL
Adjust s the ou tput v olu me of th e 
micro pr eamp 
Connections
1.DCIN 
  Con nec t a DC 9V 22 0mA cen tre p in neg ativ e pow er sup ply
2.INPU T
  Con nec t your i nstr ume nt dir ectl y or th e outp ut of yo ur pr e, pre -amp e ffec ts li ke 
  Ove rdr ive, d isto rti on, et c.
3.OUTP UT
  Con nec t to a pow er amp o r you r ampl ifie r’s e ffec ts ret urn . 
  (Hi ghl y reco mmen d usi ng a tub e ampl ifi er) 
  Dif fere nt po wer am plif ier s will a ffec t the ou tco me of th e fina l ton e. 
  You can also c onne ct direct ly to a so und card an d acti vate t he sp eake r cab 
  sim ula tion f or rec ord ing pu rpos es
Note: You ca n conn ect your "f x loop " effe cts, like m odul atio n and t ime ba sed 
eff ects, in be twee n the MO OER p ream ps out put a nd the i nput o f the p ower a mp 
(fx r etu rn)
AMP
effe cts retu rn
Inp ut:1/ 4” mon o audi o jac k.(Imp edan ce: 1 m eg Ohm s) 
Out put:1 /4” mo no aud io ja ck(Imp edan ce: 1 00 Ohm s) 
Pow er re quir emen ts: AC a dapt er 9V DC         , c ent er neg ativ e.  
Cur ren t Draw :300 mA 
Dim ens ions :93. 5mm (D) x 42 mm(W ) x 52m m(H) 
Wei ght: 160 g 
Access orie s:Ow ner ’s Manual
*No tes:Any s pecif icati on’s up date wi ll not be a mende d in this m anual .
Dela y
Reve rb
MICR O 
PREA MP
DC9V
CH/CAB
CH/CAB
OD/D ist
Pa rt No :62 001 062 2