Rear Panel; Link Input. Xlr Male Connector Connected In Parallel To The Female For Linking The Channel To Another Input - Martin Audio MA4.2s User Manual

< >
CONTENTS
6 . On in dica tor
T he two bo tto m gree n L ED 's in dicate tha t th e o utp ut circuits are re ceivin g th e corre ct ra il vo lta ge .
7 . Fa n g rille filte rs
T wo g rille s w ith fo a m filte rs a re lo cated o n the fron t p an el to p re ven t d ust fro m en terin g the a m plifie r. Th e g rille s are
rem ovab le fo r e asy cle an ing o f the filters b y sim ply pu lling th em o ff. T h e fo am filte rs sho u ld a lwa ys b e u se d .
8 . Po we r s witch
T urns m a in s p ow er o n o r o ff.
(See page
9 . AC in dica tor
Ind icate s if AC voltag e is prese nt. N ote: th is in dica to r is located electrica lly in fro nt o f the po we r switch .
1 0. A FS in dic ator
Ind icate s if th e AF S (Au tom atic Fu se Sa ve r) -curren t lim iter is a ctiva te d .
4.3

Rear Panel

1. Output / Speaker connector
T he S pe akon co nn e ctor from N eu trik ma y b e un fa m ilia r to so m e use rs. A full d escrip tio n is fo un d in the o pe ratio n
section . (Se e p ag e
2. Minimum load selector (MLS™) switch
These switches are used to select the maximum output power. (See page 8).
3. Clip limiter switch
Turns the clip limiter "ON" (switch IN position) or "OFF" (switch OUT position). (See page 15).
4. Input signal XLR. Neutrik Combijack features also _" TRS phone jacks. (Pin 2 is "hot", see page 12).

5. Link Input. XLR male connector connected in parallel to the female for linking the channel to another input.

6. Gain switch channel B. Three of the switches in the DIP-switch selects the maximum gain of the channel to be
either 20, 23, 26, 29, 32, 36, 39 or 41 dB. (See page 6).
7. Link and Polarity reverse switch. Two of the switches in the DIP-switch are used for Link and Bridge
operation. (See page 7).
8. Gain switch channel A. Three of the switches in the DIP-switch selects the maximum gain of the channel to be
either 20, 23, 26, 29, 32, 36, 39 or 41 dB. (See page 6).
All material © 2007. Martin Audio Ltd. Subject to change without notice.
PRINT
10 and 14)
1
OUTPUT CH.B
MLS switch
dB
0
-2
-4
1+ CH.B+ -5
1 - CH.B-
MA4.2s Clip Limi ter B
Made in the E EC by
2
3
1 3).
Martin Audio – MA4.2s Amplifier
4 5 6 7 8 5 4
CH.A LINK CH. A INPUT
CH. B INPUT CH.B LINK
LINK/ BRIDGE A+B
GAIN GAIN
CH.B CH.A
GAIN 12 3
ON
20 dB
STER EO
OFF
23 dB
26dB
XLR 1/ 4"
29 dB
Pin 1 Scrn Sleeve
32 dB
2 Pos Tip
35dB
3 Neg Ring
38dB
Pat ents S E 900 3426
2 3 0 -2 4 0V 5 0-6 0Hz
41dB
Mus t be grounded
Current consumpt ion: 7.8A 678
9
5
1
OUTPUT CH.A
MLS swit ch
dB
0
-2
-4
STEREO
-5
1 +CH.A+
BRIDGE 1 - CH.A-
Pin 1+ Spk+ 2 +CH.B+
2- Spk- 2 - CH.B-
Clip Limit er A
EP 0 483094 Ser. No :
US 52 00711
2
3
GUIDES