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Martin Audio – MA200Q Amplifier
ENGLISH
12
230-240V 50-60Hz
1/4“XLR
3 Neg Ring
2 Pos Tip
Pi n 1 Scrn Sleeve
Must be grounded
L e
g
dirB/kniD+C
Fixed gain 32 dB
L C+Bkni
L
B+Ae
g
dirB
/
kni
CH.D
CH . C I N PUTS CH.B
CH . A
The Neutrik Combo jack is wired in parallel with the XLR.
TIP H OT
R IN G C OL D
SLEEVE SHIEL D/G RO UN D
Th e inp ut imped anc e is hig h eno ugh ( 20K oh ms
ba la nce d) to allow ” daisy- ch ain ing ”, or mu ltiple p ar allel
in pu t c onn ec tio ns. The hea dr oom of the inp ut circu its is
also high en oug h to acc ept the max imum outpu t leve l
fr om virtu ally any low- lev el signa l sou rce . Balanc ed
sign als ar e les s s en sitive to AC h um an d r ad io
in te rfe ren ce . The so urc e imp eda nce s hou ld be le ss
th an 1Ko hms to a void hig h fre que ncy loss es in lo ng
sign al cab le s.
7.1.2 Unbalanced inputs
To co nn e ct a n u nb ala nc ed so ur ce , c on n ec t pin 3 ( r in g on TR S jac k) to the sh ie ld of th e co nn e ctor . If yo u
lea ve o n e pin d is co n ne cte d, y ou will lo se 6 d B’s in le ve l.
A b ette r meth od o f c on n e c t i n g u n b a l a n c e d s o u r c e s i s s h o w n i n b e l o w . T h i s i s s i m i l a r t o t h e c on ne c tion fo r
b alan ce d lin e s, b ut pin 3 is co n ne cte d to th e sh ield at th e s ou rc e. Th e h um a nd no is e r ejec tio n for the ca ble
is eq uiv alen t to th a t of a ba la n ce d lin e. To min imize h u m in th e au d io , u se b ala nc ed in pu ts wh en e ve r
p os sible .
Unbalanced line connection Balanced line with unbalanced equipment
7.2 Connecting loudspeakers
L ou ds pe a ke r c on ne ction s a re mad e v ia th e tw o N eu tr ik NL 4FC Spe ak on co nn e ctor s. Th e Spe ak on
c on ne cto r is de sign e d fo r h ig h p ow er lo ud sp e ak er us e an d mee ts all w or ld w id e sa fety r eq uire men ts .
C on ne ction s.
The Speakons are wired:
Channels A, B output connector
Pin +1, Pin –1 = Output A
Pin +2, Pin –2 = Output B
Channels C, D output connector
Pin +1, Pin –1 = Output C
Pin +2, Pin –2 = Output D
CONTENTS
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